Paul Barklem

Charge transfer of O⁺ with Si, S, Mg, and Ne for supernova ejecta modelling

Reja, Deboki; Barklem, Paul S.; Jerkstrand, Anders

Ingår i Astronomy and Astrophysics, 2026

• DOI för Charge transfer of O⁺ with Si, S, Mg, and Ne for supernova ejecta modelling
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Charge transfer in C + O+ collisions and its impact on supernova spectra

Reja, Deboki; Barklem, Paul; Bartmentloo, Stan; Jerkstrand, Anders

Ingår i Astronomy and Astrophysics, 2025

• DOI för Charge transfer in C + O+ collisions and its impact on supernova spectra
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Revisiting inelastic Cu + H collisions and the non-LTE Galactic evolution of copper

Caliskan, Sema; Amarsi, Anish; Racca, M.; Koutsouridou, I. et al.

Ingår i Astronomy and Astrophysics, 2025

• DOI för Revisiting inelastic Cu + H collisions and the non-LTE Galactic evolution of copper
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The PLATO mission

Rauer, Heike; Amarsi, Anish; Barklem, Paul; Eriksson, Kjell et al.

Ingår i Experimental astronomy, 2025

• DOI för The PLATO mission
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The solar beryllium abundance revisited with 3D non-LTE models

Amarsi, Anish M.; Ogneva, Daria; Buldgen, G.; Grevesse, N. et al.

Ingår i Astronomy and Astrophysics, 2024

• DOI för The solar beryllium abundance revisited with 3D non-LTE models
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Charge transfer of O⁺ with Si, S, Mg, and Ne for supernova ejecta modelling

Reja, Deboki; Barklem, Paul S.; Jerkstrand, Anders

Ingår i Astronomy and Astrophysics, 2026

• DOI för Charge transfer of O⁺ with Si, S, Mg, and Ne for supernova ejecta modelling
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Charge transfer in C + O+ collisions and its impact on supernova spectra

Reja, Deboki; Barklem, Paul; Bartmentloo, Stan; Jerkstrand, Anders

Ingår i Astronomy and Astrophysics, 2025

• DOI för Charge transfer in C + O+ collisions and its impact on supernova spectra
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Revisiting inelastic Cu + H collisions and the non-LTE Galactic evolution of copper

Caliskan, Sema; Amarsi, Anish; Racca, M.; Koutsouridou, I. et al.

Ingår i Astronomy and Astrophysics, 2025

• DOI för Revisiting inelastic Cu + H collisions and the non-LTE Galactic evolution of copper
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The PLATO mission

Rauer, Heike; Amarsi, Anish; Barklem, Paul; Eriksson, Kjell et al.

Ingår i Experimental astronomy, 2025

• DOI för The PLATO mission
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The solar beryllium abundance revisited with 3D non-LTE models

Amarsi, Anish M.; Ogneva, Daria; Buldgen, G.; Grevesse, N. et al.

Ingår i Astronomy and Astrophysics, 2024

• DOI för The solar beryllium abundance revisited with 3D non-LTE models
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Revisiting the statistical equilibrium of H^- in stellar atmospheres

Barklem, Paul; Amarsi, Anish

Ingår i Astronomy and Astrophysics, 2024

• DOI för Revisiting the statistical equilibrium of H^- in stellar atmospheres
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State-resolved mutual neutralization of ¹⁶O⁺ with ¹H⁻ and ²H⁻ at collision energies below 100 meV

Schmidt-May, Alice F.; Barklem, Paul S.; Grumer, Jon; Amarsi, Anish M. et al.

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2024

• DOI för State-resolved mutual neutralization of ¹⁶O⁺ with ¹H⁻ and ²H⁻ at collision energies below 100 meV
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3D NLTE modelling of Y and Eu: Centre-to-limb variation and solar abundances

Storm, N.; Barklem, Paul; Yakovleva, S. A.; Belyaev, A. K. et al.

Ingår i Astronomy and Astrophysics, 2024

• DOI för 3D NLTE modelling of Y and Eu: Centre-to-limb variation and solar abundances
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The molecular chemistry of Type Ibc supernovae and diagnostic potential with the James Webb Space Telescope

Liljegren, S.; Jerkstrand, A.; Barklem, Paul; Nyman, G. et al.

Ingår i Astronomy and Astrophysics, 2023

• DOI för The molecular chemistry of Type Ibc supernovae and diagnostic potential with the James Webb Space Telescope
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Observation of an isotope effect in state-selective mutual neutralization of lithium with hydrogen

Schmidt-May, Alice F.; Rosen, Stefan; Ji, Mingchao; Eklund, Gustav et al.

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2023

• DOI för Observation of an isotope effect in state-selective mutual neutralization of lithium with hydrogen
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Detailed alpha abundance trends in the inner Galactic bulge

Nieuwmunster, N.; Nandakumar, G.; Spitoni, E.; Ryde, N. et al.

Ingår i Astronomy and Astrophysics, 2023

• DOI för Detailed alpha abundance trends in the inner Galactic bulge
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State-Resolved Mutual Neutralization of Mg+ and D-

Grumer, Jon; Eklund, Gustav; Amarsi, Anish; Barklem, Paul et al.

Ingår i Physical Review Letters, 2022

• DOI för State-Resolved Mutual Neutralization of Mg+ and D-
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Storage-ring study of the mutual neutralization of N plus with O minus

Poline, Mathias; Rosen, Stefan; Ji, MingChao; Simonsson, Ansgar et al.

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2022

• DOI för Storage-ring study of the mutual neutralization of N plus with O minus
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Titanium abundances in late-type stars: I. 1D non-local thermodynamic equilibrium modelling in benchmark dwarfs and giants

Mallinson, J. W. E.; Lind, K.; Amarsi, Anish; Barklem, Paul et al.

Ingår i Astronomy and Astrophysics, 2022

• DOI för Titanium abundances in late-type stars: I. 1D non-local thermodynamic equilibrium modelling in benchmark dwarfs and giants
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The solar photospheric silicon abundance according to (COBOLD)-B-5: Investigating line broadening, magnetic fields, and model effects

Deshmukh, S. A.; Ludwig, H-G; Kucinskas, A.; Steffen, M. et al.

Ingår i Astronomy and Astrophysics, 2022

• DOI för The solar photospheric silicon abundance according to (COBOLD)-B-5: Investigating line broadening, magnetic fields, and model effects
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The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy

Randich, S.; Gilmore, G.; Magrini, L.; Sacco, G. G. et al.

Ingår i Astronomy and Astrophysics, 2022

• DOI för The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy

The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star

Gilmore, G.; Randich, S.; Worley, C. C.; Hourihane, A. et al.

Ingår i Astronomy and Astrophysics, 2022

• DOI för The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products star
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Non-LTE abundance corrections for late-type stars from 2000Å to 3 μm

Lind, K.; Nordlander, T.; Wehrhahn, Ansgar; Montelius, M. et al.

Ingår i Astronomy and Astrophysics, 2022

• DOI för Non-LTE abundance corrections for late-type stars from 2000Å to 3 μm
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Final-state-resolved mutual neutralization of Na+ and D-

Eklund, Gustav; Grumer, Jon; Barklem, Paul; Rosen, Stefan et al.

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2021

• DOI för Final-state-resolved mutual neutralization of Na+ and D-
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Diagnostic capabilities of spectropolarimetric observations for understanding solar phenomena: I. Zeeman-sensitive photospheric lines

Noda, C. Quintero; Barklem, Paul; Gafeira, R.; Ruiz Cobo, B. et al.

Ingår i Astronomy and Astrophysics, 2021

• DOI för Diagnostic capabilities of spectropolarimetric observations for understanding solar phenomena: I. Zeeman-sensitive photospheric lines

Mutual neutralisation of O+ with O-: investigation of the role of metastable ions in a combined experimental and theoretical study

Poline, Mathias; Dochain, Arnaud; Rosen, Stefan; Grumer, Jon et al.

Ingår i Physical Chemistry, Chemical Physics - PCCP, s. 24607-24616, 2021

• DOI för Mutual neutralisation of O+ with O-: investigation of the role of metastable ions in a combined experimental and theoretical study
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Mutual Neutralization in Li++H-/D- and Na++H-/D- Collisions: Implications of Experimental Results for Non-LTE Modeling of Stellar Spectra

Barklem, Paul; Amarsi, Anish; Grumer, Jon; Eklund, Gustav et al.

Ingår i Astrophysical Journal, 2021

• DOI för Mutual Neutralization in Li++H-/D- and Na++H-/D- Collisions: Implications of Experimental Results for Non-LTE Modeling of Stellar Spectra

Correspondence between the surface integral and linear combination of atomic orbitals methods for ionic-covalent interactions in mutual neutralization processes involving H-/D-

Barklem, Paul

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2021

• DOI för Correspondence between the surface integral and linear combination of atomic orbitals methods for ionic-covalent interactions in mutual neutralization processes involving H-/D-
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Atomic data for the Gaia-ESO Survey

Heiter, Ulrike; Lind, K.; Bergemann, M.; Asplund, M. et al.

Ingår i Astronomy and Astrophysics, 2021

• DOI för Atomic data for the Gaia-ESO Survey

Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D-

Eklund, Gustav; Grumer, Jon; Rosen, Stefan; Ji, MingChao et al.

Ingår i Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2020

• DOI för Cryogenic merged-ion-beam experiments in DESIREE: Final-state-resolved mutual neutralization of Li+ and D-
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Excitation and charge transfer in low-energy hydrogen atom collisions with neutral manganese and titanium

Grumer, Jon; Barklem, Paul

Ingår i Astronomy and Astrophysics, 2020

• DOI för Excitation and charge transfer in low-energy hydrogen atom collisions with neutral manganese and titanium

The 3D non-LTE solar nitrogen abundance from atomic lines

Amarsi, Anish; Grevesse, N.; Grumer, Jon; Asplund, M. et al.

Ingår i Astronomy and Astrophysics, 2020

• DOI för The 3D non-LTE solar nitrogen abundance from atomic lines

4MOST: Project overview and information for the First Call for Proposals

de Jong, R. S.; Agertz, O.; Berbel, A. A.; Aird, J. et al.

Ingår i The Messenger, s. 3-11, 2019

• DOI för 4MOST: Project overview and information for the First Call for Proposals

Non-LTE analysis of K I in late-type stars

Reggiani, Henrique; Amarsi, Anish M.; Lind, Karin; Barklem, Paul S. et al.

Ingår i Astronomy and Astrophysics, 2019

• DOI för Non-LTE analysis of K I in late-type stars

Excitation and charge transfer in low-energy hydrogen atom collisions with neutral carbon and nitrogen

Amarsi, A. M.; Barklem, Paul

Ingår i Astronomy and Astrophysics, 2019

• DOI för Excitation and charge transfer in low-energy hydrogen atom collisions with neutral carbon and nitrogen
• Ladda ner fulltext (pdf) av Excitation and charge transfer in low-energy hydrogen atom collisions with neutral carbon and nitrogen

3D non-LTE line formation of neutral carbon in the Sun

Amarsi, A. M.; Barklem, Paul S.; Collet, R.; Grevesse, N. et al.

Ingår i Astronomy and Astrophysics, 2019

• DOI för 3D non-LTE line formation of neutral carbon in the Sun
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Gaia Data Release 2 Variable stars in the colour-absolute magnitude diagram

Eyer, L.; Korn, Andreas J.; Barklem, Paul S.; Edvardsson, Bengt et al.

Ingår i Astronomy and Astrophysics, 2019

• DOI för Gaia Data Release 2 Variable stars in the colour-absolute magnitude diagram

Ca line formation in late-type stellar atmospheres: I. The model atom

Osorio, Y.; Lind, Karin; Barklem, Paul S.; Prieto, C. Allende et al.

Ingår i Astronomy and Astrophysics, 2019

• DOI för Ca line formation in late-type stellar atmospheres: I. The model atom

Carbon and oxygen in metal-poor halo stars

Amarsi, A. M.; Nissen, P. E.; Asplund, M.; Lind, Karin et al.

Ingår i Astronomy and Astrophysics, 2019

• DOI för Carbon and oxygen in metal-poor halo stars

Gaia Data Release 2 Kinematics of globular clusters and dwarf galaxies around the Milky Way

Helmi, A.; van Leeuwen, F.; McMillan, P. J.; Massari, D. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Gaia Data Release 2 Kinematics of globular clusters and dwarf galaxies around the Milky Way

A New Test of Copper and Zinc Abundances in Late-type Stars Using Ultraviolet Cu II and Zn II Lines

Roederer, Ian U.; Barklem, Paul

Ingår i Astrophysical Journal, 2018

• DOI för A New Test of Copper and Zinc Abundances in Late-type Stars Using Ultraviolet Cu II and Zn II Lines

Effective temperature determinations of late-type stars based on 3D non-LTE Balmer line formation

Amarsi, A. M.; Nordlander, T.; Barklem, Paul; Asplund, M. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Effective temperature determinations of late-type stars based on 3D non-LTE Balmer line formation

A collection of model stellar spectra for spectral types B to early-M

Allende Prieto, C.; Koesterke, L.; Hubeny, I.; Bautista, M. A. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för A collection of model stellar spectra for spectral types B to early-M

Gaia Data Release 2: Observations of solar system objects

Spoto, F.; Tanga, P.; Mignard, F.; Berthier, J. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Gaia Data Release 2: Observations of solar system objects
• Ladda ner fulltext (pdf) av Gaia Data Release 2: Observations of solar system objects

Gaia Data Release 2 The celestial reference frame (Gaia-CRF2)

Mignard, F.; Klioner, S. A.; Lindegren, L.; Hernandez, J. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Gaia Data Release 2 The celestial reference frame (Gaia-CRF2)

Chemical characterization of the inner Galactic bulge: North-South symmetry

Nandakumar, G.; Ryde, N.; Schultheis, M.; Thorsbro, B. et al.

Ingår i Monthly notices of the Royal Astronomical Society, s. 4374-4389, 2018

• DOI för Chemical characterization of the inner Galactic bulge: North-South symmetry

Gaia Data Release 2 Mapping the Milky Way disc kinematics

Katz, D.; Antoja, T.; Romero-Gomez, M.; Drimmel, R. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Gaia Data Release 2 Mapping the Milky Way disc kinematics
• Ladda ner fulltext (pdf) av Gaia Data Release 2 Mapping the Milky Way disc kinematics

Observational Hertzsprung-Russell diagrams

Babusiaux, C.; van Leeuwen, F.; Barstow, M. A.; Jordi, C. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Observational Hertzsprung-Russell diagrams
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Gaia Data Release 2 Summary of the contents and survey properties

Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Gaia Data Release 2 Summary of the contents and survey properties

Inelastic O plus H collisions and the O I 777 nm solar centre-to-limb variation

Amarsi, A. M.; Barklem, Paul; Asplund, M.; Collet, R. et al.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Inelastic O plus H collisions and the O I 777 nm solar centre-to-limb variation

Excitation and charge transfer in low-energy hydrogen atom collisions with neutral iron

Barklem, Paul S.

Ingår i Astronomy and Astrophysics, 2018

• DOI för Excitation and charge transfer in low-energy hydrogen atom collisions with neutral iron

Excitation and charge transfer in low-energy hydrogen atom collisions with neutral oxygen

Barklem, Paul

Ingår i Astronomy and Astrophysics, 2018

• DOI för Excitation and charge transfer in low-energy hydrogen atom collisions with neutral oxygen

Data on inelastic processes in low-energy potassium-hydrogen and rubidium-hydrogen collisions

Yakovleva, S. A.; Barklem, Paul S.; Belyaev, A. K.

Ingår i Monthly notices of the Royal Astronomical Society, s. 3810-3817, 2018

• DOI för Data on inelastic processes in low-energy potassium-hydrogen and rubidium-hydrogen collisions
• Ladda ner fulltext (pdf) av Data on inelastic processes in low-energy potassium-hydrogen and rubidium-hydrogen collisions

3D NLTE Analysis of the Most Iron-Deficient Star, SMSS0313-6708

Nordlander, Thomas; Amarsi, A. M.; Lind, Karin; Asplund, M. et al.

Ingår i Astronomy and Astrophysics, 2017

• DOI för 3D NLTE Analysis of the Most Iron-Deficient Star, SMSS0313-6708

The Hamburg/ESO R-process Enhanced Star survey (HERES)

Hill, V.; Christlieb, N.; Beers, T. C.; Barklem, Paul S. et al.

Ingår i Astronomy and Astrophysics, 2017

• DOI för The Hamburg/ESO R-process Enhanced Star survey (HERES)

Inelastic e plus Mg collision data and its impact on modelling stellar and supernova spectra

Barklem, Paul; Osorio, Y.; Fursa, D. V.; Bray, I. et al.

Ingår i Astronomy and Astrophysics, 2017

• DOI för Inelastic e plus Mg collision data and its impact on modelling stellar and supernova spectra

Non-LTE line formation of Fe in late-type stars - IV. Modelling of the solar centre-to-limb variation in 3D

Lind, Karin; Amarsi, A. M.; Asplund, M.; Barklem, Paul S. et al.

Ingår i Monthly notices of the Royal Astronomical Society, s. 4311-4322, 2017

• DOI för Non-LTE line formation of Fe in late-type stars - IV. Modelling of the solar centre-to-limb variation in 3D
• Ladda ner fulltext (pdf) av Non-LTE line formation of Fe in late-type stars - IV. Modelling of the solar centre-to-limb variation in 3D

Mg line formation in late-type stellar atmospheres: II. Calculations in a grid of 1D models

Martinez Osorio, Yeisson Fabian; Barklem, Paul S.

Ingår i Astronomy and Astrophysics, 2016

• DOI för Mg line formation in late-type stellar atmospheres: II. Calculations in a grid of 1D models

Non-LTE line formation of Fe in late-type stars - III. 3D non-LTE analysis of metal-poor stars

Amarsi, A. M.; Lind, Karin; Asplund, M.; Barklem, Paul S. et al.

Ingår i Monthly notices of the Royal Astronomical Society, s. 1518-1533, 2016

• DOI för Non-LTE line formation of Fe in late-type stars - III. 3D non-LTE analysis of metal-poor stars

Excitation and charge transfer in low-energy hydrogen-atom collisions with neutral atoms: Theory, comparisons, and application to Ca

Barklem, Paul S.

Ingår i PHYSICAL REVIEW A, 2016

• DOI för Excitation and charge transfer in low-energy hydrogen-atom collisions with neutral atoms: Theory, comparisons, and application to Ca

Partition functions and equilibrium constants for diatomic molecules and atoms of astrophysical interest

Barklem, Paul S.; Collet, R.

Ingår i Astronomy and Astrophysics, 2016

• DOI för Partition functions and equilibrium constants for diatomic molecules and atoms of astrophysical interest

A major upgrade of the VALD database

Ryabchikova, T.; Piskunov, Nikolai; Kurucz, R. L.; Stempels, Eric H. C. et al.

Ingår i Physica Scripta, 2015

• DOI för A major upgrade of the VALD database

Inelastic processes in atomic, molecular and chemical physics (in honour of Andrey K. Belyaev)

Barklem, Paul S.; Tscherbul, Timur V.

Ingår i Chemical Physics, s. 1-2, 2015

• DOI för Inelastic processes in atomic, molecular and chemical physics (in honour of Andrey K. Belyaev)

Atomic and molecular data for optical stellar spectroscopy

Heiter, Ulrike; Lind, Karin; Asplund, M.; Barklem, Paul S. et al.

Ingår i Physica Scripta, 2015

• DOI för Atomic and molecular data for optical stellar spectroscopy

Mg line formation in late-type stellar atmospheres: I. The model atom

Martinez Osorio, Yeisson Fabian; Barklem, Paul; Lind, Karin; Belyaev, A. K. et al.

Ingår i Astronomy and Astrophysics, 2015

• DOI för Mg line formation in late-type stellar atmospheres: I. The model atom

The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo

Lind, Karin; Koposov, S. E.; Battistini, C.; Marino, A. F. et al.

Ingår i Astronomy and Astrophysics, 2015

• DOI för The Gaia-ESO Survey: A globular cluster escapee in the Galactic halo

Unified numerical model of collisional depolarization and broadening rates that are due to hydrogen atom collisions

Derouich, M.; Radi, A.; Barklem, Paul S.

Ingår i Astronomy and Astrophysics, 2015

• DOI för Unified numerical model of collisional depolarization and broadening rates that are due to hydrogen atom collisions
• Ladda ner fulltext (pdf) av Unified numerical model of collisional depolarization and broadening rates that are due to hydrogen atom collisions

Inelastic silicon-hydrogen collision data for non-LTE applications in stellar atmospheres

Belyaev, Andrey K.; Yakovleva, Svetlana A.; Barklem, Paul S.

Ingår i Astronomy and Astrophysics, 2014

• DOI för Inelastic silicon-hydrogen collision data for non-LTE applications in stellar atmospheres

Atomic diffusion and mixing in old stars IV. Weak abundance trends in the globular cluster NGC6752

Gruyters, Pieter; Korn, Andreas J.; Richard, O.; Grundahl, F. et al.

Ingår i Astronomy and Astrophysics, 2013

• DOI för Atomic diffusion and mixing in old stars IV. Weak abundance trends in the globular cluster NGC6752

The most metal-poor stars. III. The metallicity distribution function and carbon-enhanced metal-poor fraction

Yong, David; Norris, John E.; Bessell, M. S.; Christlieb, N. et al.

Ingår i Astrophysical Journal, s. 27, 2013

• DOI för The most metal-poor stars. III. The metallicity distribution function and carbon-enhanced metal-poor fraction

The most metal-poor stars. IV. the two populations with [Fe/H] ≲ -3.0

Norris, J. E.; Yong, D.; Bessell, M. S.; Christlieb, N. et al.

Ingår i Astrophysical Journal, s. 28, 2013

• DOI för The most metal-poor stars. IV. the two populations with [Fe/H] ≲ -3.0

The most metal-poor stars. I. Discovery, data, and atmospheric parameters

Norris, J. E.; Bessell, M. S.; Yong, D.; Christlieb, N. et al.

Ingår i Astrophysical Journal, s. 25, 2013

• DOI för The most metal-poor stars. I. Discovery, data, and atmospheric parameters

The most metal-poor stars. II. Chemical abundances of 190 metal-poor stars including 10 new stars with [Fe/H] ≤ -3.5

Yong, D.; Norris, J. E.; Bessell, M. S.; Christlieb, N. et al.

Ingår i Astrophysical Journal, s. 26, 2013

• DOI för The most metal-poor stars. II. Chemical abundances of 190 metal-poor stars including 10 new stars with [Fe/H] ≤ -3.5

The influence of electron collisions on non-LTE Li line formation in stellar atmospheres

Martinez Osorio, Yeisson Fabian; Barklem, Paul S.; Lind, K.; Asplund, M.

Ingår i Journal of Physics, Conference Series, 2012

• DOI för The influence of electron collisions on non-LTE Li line formation in stellar atmospheres

Cross sections for low-energy inelastic Mg + H and Mg⁺ + H^- collisions

Belyaev, Andrey K.; Barklem, Paul; Spielfiedel, A.; Guitou, M. et al.

Ingår i Physical Review A. Atomic, Molecular, and Optical Physics, 2012

• DOI för Cross sections for low-energy inelastic Mg + H and Mg⁺ + H^- collisions

Inelastic Mg plus H collision data for non-LTE applications in stellar atmospheres

Barklem, Paul; Belyaev, A. K.; Spielfiedel, A.; Guitou, M. et al.

Ingår i Astronomy and Astrophysics, 2012

• DOI för Inelastic Mg plus H collision data for non-LTE applications in stellar atmospheres

Low-energy inelastic Na + H collisions

Belyaev, Andrey K.; Barklem, Paul S.; Gadéa, F. X.; Vlasov, D. V.

Ingår i Journal of Physics, Conference Series, 2012

• DOI för Low-energy inelastic Na + H collisions

Ab initio cross sections for low-energy inelastic Mg+H collisions

Belyaev, Andrey K.; Barklem, Paul S.; Guitou, M.; Spielfiedel, A. et al.

Ingår i Journal of Physics, Conference Series, 2012

• DOI för Ab initio cross sections for low-energy inelastic Mg+H collisions

Mg-H collision rates for non-LTE determination of stellar atmospheric parameters

Guitou, M.; Belyaev, A. K.; Spielfiedel, A.; Feautrier, N. et al.

Ingår i Journal of Physics, Conference Series, 2012

• DOI för Mg-H collision rates for non-LTE determination of stellar atmospheric parameters

HERES VI. Galactic chemical evolution of Si and C (Zhang+, 2011)

Zhang, L.; Karlsson, Torgny; Christlieb, N.; Korn, Andreas et al.

Ingår i VizieR Online Data Catalog, 2011

On inelastic hydrogen atom collisions in stellar atmospheres

Barklem, Paul; Belyaev, A. K.; Guitou, M.; Feautrier, N. et al.

Ingår i Astronomy and Astrophysics, 2011

• DOI för On inelastic hydrogen atom collisions in stellar atmospheres

The influence of electron collisions on non-LTE Li line formation in stellar atmospheres

Martinez Osorio, Yeisson Fabian; Barklem, Paul; Lind, K.; Asplund, M.

Ingår i Astronomy and Astrophysics, 2011

• DOI för The influence of electron collisions on non-LTE Li line formation in stellar atmospheres

Multichannel excitation cross sections of sodium atoms at slow collisions with hydrogen atoms

Vlasov, D. V.; Barklem, Paul; Belyaev, A. K.

Ingår i Optics and Spectroscopy, s. 321-327, 2011

• DOI för Multichannel excitation cross sections of sodium atoms at slow collisions with hydrogen atoms

The Hamburg/ESO R-process Enhanced Star survey (HERES) VI. The Galactic chemical evolution of silicon

Zhang, L.; Karlsson, T.; Christlieb, N.; Korn, Andreas et al.

Ingår i Astronomy and Astrophysics, 2011

• DOI för The Hamburg/ESO R-process Enhanced Star survey (HERES) VI. The Galactic chemical evolution of silicon

Non-LTE calculations for neutral Na in late-type stars using improved atomic data

Lind, K.; Asplund, M.; Barklem, Paul; Belyaev, A. K.

Ingår i Astronomy and Astrophysics, 2011

• DOI för Non-LTE calculations for neutral Na in late-type stars using improved atomic data

Inelastic Mg plus H collision processes at low energies

Guitou, M.; Belyaev, A. K.; Barklem, Paul; Spielfiedel, A. et al.

Ingår i Journal of Physics B, 2011

• DOI för Inelastic Mg plus H collision processes at low energies

Cross sections for low-energy inelastic H plus Na collisions

Belyaev, A. K.; Barklem, Paul S.; Dickinson, A. S.; Gadea, F. X.

Ingår i Physical Review A. Atomic, Molecular, and Optical Physics, 2010

• DOI för Cross sections for low-energy inelastic H plus Na collisions

The Hamburg/ESO R-process enhanced star survey (HERES) V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642

Mashonkina, L.; Christlieb, N.; Barklem, Paul S.; Hill, V. et al.

Ingår i Astronomy and Astrophysics, 2010

• DOI för The Hamburg/ESO R-process enhanced star survey (HERES) V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642

Inelastic Na+H collision data for non-LTE applications in stellar atmospheres

Barklem, Paul; Belyaev, A. K.; Dickinson, A. S.; Gadea, F. X.

Ingår i Astronomy and Astrophysics, 2010

• DOI för Inelastic Na+H collision data for non-LTE applications in stellar atmospheres

LITHIUM ABUNDANCES OF EXTREMELY METAL-POOR TURNOFF STARS

Aoki, Wako; Barklem, Paul S.; Beers, C; Christlieb, Norbert et al.

Ingår i Astrophysical Journal, s. 1803-1812, 2009

• DOI för LITHIUM ABUNDANCES OF EXTREMELY METAL-POOR TURNOFF STARS

Hydrogen lines

Barklem, Paul S.

Ingår i Physica Scripta, 2008

• DOI för Hydrogen lines

Non-LTE Balmer line formation in late-type spectra: Effects of atomic processes involving hydrogen atoms

Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 327-337, 2007

• DOI för Non-LTE Balmer line formation in late-type spectra: Effects of atomic processes involving hydrogen atoms

Atomic Diffusion and Mixing in Old Stars: I. Very Large Telescope FLAMES-UVES Observations of Stars in NGC 6397

Korn, Andreas; Grundahl, Frank; Richard, Olivier; Mashonkina, Lyudmila et al.

Ingår i Astrophysical Journal, s. 402-419, 2007

• DOI för Atomic Diffusion and Mixing in Old Stars: I. Very Large Telescope FLAMES-UVES Observations of Stars in NGC 6397

Multipole rates for atomic polarization studies: The case of complex atoms in non-spherically symmetric states colliding with atomic hydrogen

Sahal-Brechot, S.; Derouich, M.; Bommier, V.; Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 667-677, 2007

• DOI för Multipole rates for atomic polarization studies: The case of complex atoms in non-spherically symmetric states colliding with atomic hydrogen

Spin depolarizing effect in collisions with neutral hydrogen: II. Application to simple/complex ions in spherically symmetric states

Derouich, M; Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 1171-1177, 2007

• DOI för Spin depolarizing effect in collisions with neutral hydrogen: II. Application to simple/complex ions in spherically symmetric states

Electron-impact excitation of neutral oxygen

Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 781-788, 2007

• DOI för Electron-impact excitation of neutral oxygen

A probable stellar solution to the cosmological lithium discrepancy

Korn, Andreas; Grundahl, Frank; Richard, O.; Barklem, Paul et al.

Ingår i Nature, s. 657-659, 2006

• DOI för A probable stellar solution to the cosmological lithium discrepancy

The frequency of carbon-enhanced metal-poor stars in the galaxy from the HERES sample

Lucatello, S.; Beers, T.; Christlieb, Norbert; Barklem, Paul et al.

Ingår i Astrophysical Journal, 2006

• DOI för The frequency of carbon-enhanced metal-poor stars in the galaxy from the HERES sample

HE 1327-2326, an Unevolved Star with [Fe/H] < -5.0.: I. A Comprehensive Abundance Analysis

Aoki, W; Frebel, A; Christlieb, Norbert; Norris, J et al.

Ingår i The Astrophysical Journal, s. 897-917, 2006

The Hamburg/ESO R-process Enhanced Star survey (HERES).: II. HE 0338-3945 and the formation of the r+s stars

Jonsell, Karin; Barklem, Paul; Gustafsson, Bengt; Christlieb, Norbert et al.

Ingår i Astronomy and Astrophysics, s. 651-670, 2006

Efficient Searches for r-Process-Enhanced, Metal-Poor Stars

Beers, T.C.; Barklem, Paul; Christlieb, Norbert; Hill, V.

Ingår i Nuclear Physics A, s. 595-598, 2005

The broadening of Fe II lines by neutral hydrogen collisions

Barklem, Paul; Aspelund-Johansson, Jenny

Ingår i Astronomy and Astrophysics, s. 373-377, 2005

Nucleosynthetic signatures of the first stars

Frebel, A.; Aoki, W.; Christlieb, N.; Ando, H. et al.

Ingår i Nature, s. 871-873, 2005

The Hamburg/ESO R-process Enhanced Star survey (HERES).: II. Spectroscopic analysis of the survey sample

Barklem, Paul; Christlieb, Norbert; Beers, T.C.; Hill, V. et al.

Ingår i Astronomy and Astrophysics, s. 129-151, 2005

Spin depolarizing effect in collisions of simple/complex atoms in spherically symmetric states with neutral hydrogen

Derouich, M.; Barklem, Paul; Sahal-Bréchot, S.

Ingår i Astronomy and Astrophysics, s. 395-406, 2005

Collisional depolarization of the lines of complex atoms/ions by neutral hydrogen

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 779-784, 2005

The Hamburg/ESO R-process Enhanced Star survey (HERES).: I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements

Christlieb, N.; Beers, T.C.; Barklem, Paul; Bessell, M.S. et al.

Ingår i Astronomy and Astrophysics, s. 1027-1037, 2004

HE0107, A Chemically Ancient Star.: I. A Detailed Abundance Analysis

Christlieb, N.; Gustafsson, B; Korn, A.J.; Barklem, Paul et al.

Ingår i The Astrophysical Journal, s. 708-728, 2004

Collisional broadening of Mg, Sr, Ca and Na resonance lines by atomic hydrogen

Kerkeni, B.; Barklem, Paul; Spielfiedel, A.; Feautrier, N.

Ingår i Journal of Physics B: Atomic, Molecular and Optical Physics, s. 677-688, 2004

On the collisional depolarization and transfer rates of spectral lines by atomic hydrogen.: III: Application to f states of neutral atoms

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 373-376, 2004

S4N: A Spectroscopic Survey of Stars in the Solar Neighborhood

Allende Prieto, C.; Barklem, Paul; Lambert, D.L; Cunha, K.

Ingår i Astronomy and Astrophysics, s. 183-205, 2004

Collisional depolarization and transfer rates of spectral lines by atomic hydrogen.: IV: Application to ionised atoms

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul

Ingår i Astronomy and Astrophysics, s. 707-715, 2004

Accurate atomic parameters for near-infrared spectral lines

Borrero, J. M.; Bellot Rubio, L. R.; Barklem, Paul; del Toro Iniesta, J. C.

Ingår i Astronomy & Astrophysics, s. 749-762, 2003

Inelastic H+Li and H-+Li+ collisions and non-LTE Li I line formation in stellar atmospheres

Barklem, Paul; Belyaev, A. K.; Asplund, M.

Ingår i Astronomy & Astrophysics, 2003

Cross sections for low-energy inelastic H+Li collisions

Belyaev, A. K.; Barklem, Paul

Ingår i Physical Review A, s. 2703, 2003

Semi-classical theory of collisional depolarization of spectral lines by atomic hydrogen I. Application to p states of neutral atoms

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul; O'Mara, B. J.

Ingår i Astronomy & Astrophysics, s. 763-773, 2003

Collisional depolarization and transfer rates of spectral lines by atomic hydrogen. II. Application to d states of neutral atoms

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul

Ingår i Astronomy & Astrophysics, s. 369-373, 2003

Interpretation of the Core-Wing Anomaly of Balmer line profiles of cool Ap stars

Kochukhov, Oleg; Bagnulo, S.; Barklem, Paul

Ingår i Astrophysical Journal Letters, s. 75-78, 2002

Detailed analysis of Balmer lines in cool dwarf stars

Barklem, Paul; Stempels, H.C.; Allende Prieto, C.; Kochukhov, Oleg et al.

Ingår i Astronomy & Astrophysics, s. 951, 2002

A stellar relic from the early Milky Way

Christlieb, N.; Bessell, M. S.; Beers, T. C.; Gustafsson, B et al.

Ingår i Nature, s. 904-906, 2002

Abundance analysis of two late A-type stars HD 32115 and HD 37594

Bikmaev, I.F.; Ryabchikova, T.C.; Bruntt, H.; Musaev, F.A. et al.

Ingår i Astron. Astrophys., s. 537-546, 2002

Comments on alternative calculations of the broadening of spectral lines of neutral sodium by H-atom collisions

Barklem, Paul; O'Mara, B.J.

Ingår i Journal of Physics B: Atomic, Molecular and Optical Physics, s. 4785-4799, 2001

Chemical Abundances from Inversions of Stellar Spectra: Analysis of Solar-Type Stars with Homogeneous and Static Model Atmospheres

Allende Prieto, C; Barklem, Paul; Asplund, M; Ruiz Cobo, B

Ingår i ASTROPHYSICAL JOURNAL, s. 830-851, 2001

Broadening of lines of BeII, SrII and BaII by collisions with hydrogen atoms and the solar abundance of strontium

Barklem, Paul; O'Mara, BJ

Ingår i MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, s. 535-540, 2000

Self-broadening in Balmer line wing formation in stellar atmospheres

Barklem, Paul; Piskunov, Nikolai; O'Mara, BJ

Ingår i ASTRONOMY AND ASTROPHYSICS, s. 1091-1105, 2000

A list of data for the broadening of metallic lines by neutral hydrogen collisions

Barklem, Paul; Piskunov, Nikolai; O'Mara, BJ

Ingår i ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, s. 467-473, 2000

Self broadening of hydrogen lines: initial results

Barklem, Paul; Piskunov, Nikolai; O'Mara, BJ

Ingår i ASTRONOMY AND ASTROPHYSICS, 2000

Accurate abundance analysis of late-type stars: advances in atomic physics

Barklem, Paul S.

Ingår i The Astronomy and Astrophysics Review, 2016

• DOI för Accurate abundance analysis of late-type stars: advances in atomic physics

New Abundances for Old Stars – Atomic Diffusion at Work in NGC 6397

Korn, Andreas J.; Grundahl, Frank; Richard, Olivier; Barklem, Paul et al.

Ingår i The Messenger, s. 6-10, 2006

Final state resolved mutual neutralization of Li+ and D-

Eklund, G.; Grumer, Jon; Rosen, S.; Najeeb, P. K. et al.

Ingår i 31St International Conference On Photonic, Electronic And Atomic Collisions (Icpeac Xxxi), 2020

• DOI för Final state resolved mutual neutralization of Li+ and D-

Negative ion relaxation and reactions in a cryogenic storage ring

Schmidt, H. T.; Rosen, S.; Thomas, R. D.; Stockett, M. H. et al.

Ingår i 31St International Conference On Photonic, Electronic And Atomic Collisions (Icpeac Xxxi), 2020

• DOI för Negative ion relaxation and reactions in a cryogenic storage ring

Modelling the spectrum of Mg in cool stars

Barklem, Paul S.; Osorio, Yeisson Fabian Martinez

Ingår i XXII International Conference on Spectral Line Shapes (ICSLS 2014), 2014

• DOI för Modelling the spectrum of Mg in cool stars
• Ladda ner fulltext (pdf) av Modelling the spectrum of Mg in cool stars

Precise effective temperatures of solar analog stars

Cornejo-Espinoza, D.; Ramírez, I.; Barklem, P. S.; Guevara-Day, W.

Ingår i IAU Symposium, s. 328-331, 2012

• DOI för Precise effective temperatures of solar analog stars

Hydrogen Atom Collision Processes in Cool Stellar Atmospheres: Effects on Spectral Line Strengths and Measured Chemical Abundances in Old Stars

Barklem, Paul S.

Ingår i XXI INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES (ICSLS 2012), 2012

• DOI för Hydrogen Atom Collision Processes in Cool Stellar Atmospheres: Effects on Spectral Line Strengths and Measured Chemical Abundances in Old Stars

Multipole rates for atomic polarization studies: the case of complex atoms in non-spherically symmetric states colliding with atomic hydrogen.

Sahal-Brechot, S.; Derouich, M.; Bommier, V.; Barklem, Paul

s. 197, 2007

Pinning Down Gravitational Settling

Korn, Andreas; Piskunov, Nikolai; Barklem, Paul; Gustafsson, Bengt

Ingår i Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites, s. 294, 2006

• DOI för Pinning Down Gravitational Settling

The frequency of Carbon-enhanced stars in HERES and SDSS

Beers, T.C.; Lucatello, S.; Marsteller, B.; Sivarani, T. et al.

Ingår i Proceedings of the International Symposium on Nuclear Astrophysics, 2006

Efficient searches for r-process-enhanced, metal-poor stars

Beers, T.C.; Barklem, Paul; Christlieb, Norbert; Hill, V.

Ingår i Nuclei in the Cosmos VIII, 2005

• DOI för Efficient searches for r-process-enhanced, metal-poor stars

The Hamburg/ESO R-process Enhanced Star survey (HERES).: Abundances

Barklem, Paul; Christlieb, Norbert; Beers, T.C.; Hill, V et al.

Ingår i From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution, IAU Symposium Proceedings of the international Astronomical Union 228, s. 439-443, 2005

The new record holder for the most iron-poor star: HE 1327 2326: A dwarf or subgiant with Fe/H = -5.4

Frebel, A; Aoki, W; Christlieb, N; Ando, H et al.

Ingår i From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution, 2005

Self-broadening of Balmer Lines Using Asymptotic Potentials: Application to Stellar Spectroscopy

Barklem, Paul

Ingår i 17th International Conference on Spectral Line Shapes, 2004

Accurate Atomic Parameters from the Solar Spectrum

Bellot Rubio, L. R.; Borrero, J. M.; Barklem, Paul; del Toro Iniesta, J. C.

Ingår i Frontiers of High Resolution Spectroscopy, 25th meeting of the IAU, Joint Discussion 20, 2003

Balmer lines and effective temperatures in cool stars

Barklem, Paul; Stempels, H.C.; Kochukhov, Oleg; Piskunov, Nikolai et al.

Ingår i 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, s. 1103, 2003

Interpretation of the Core-Wing Anomaly of Balmer line profiles of cool Ap stars

Kochukhov, O; Bagnulo, S.; Barklem, Paul

Ingår i IAUS 210, Modelling of stellar atmospheres, 2003

Ab initio cross sections for low-energy inelastic H+Li collisions

Belyaev, A; Barklem, Paul

2003

HERES: The Search for r-Process-Enhanced, Metal-Poor Stars

Beers, T. C.; Christlieb, Norbert; Bessell, M. S.; Hill, V. et al.

Ingår i Bulletin American Astronomical Society Meeting, 2003

Depolarization rates of spectral lines of neutral and singly ionised atoms by isotropic collisions with hydrogen atoms

Derouich, M.; Sahal-Bréchot, S.; Barklem, Paul

Ingår i SF2A-2003: Semaine de l'Astrophysique Française, meeting held in Bordeaux, France, June 16-20, 2003., 2003

Heres: the Search for R-Process Enhanced, Metal-Poor Stars

Beers, T. C.; Christlieb, Norbert; Bessell, M. S.; Hill, V. et al.

Ingår i Elemental Abundances in Old Stars and Damped Lyman-α Systems, 25th meeting of the IAU, Joint Discussion 15, 2003

Hydrogen Balmer Lines as Probes of Stellar Atmospheres

Barklem, Paul; Piskunov, Nikolai

Ingår i IAUS 210, Modelling of stellar atmospheres, 2003

Broadening of Spectral Lines by Collisions with H_atoms

O'Mara, B.J.; Barklem, Paul

Ingår i The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, s. 1097-1102, 2003

Hydrogen Line Formation in Cool Stars

Barklem, Paul; Kochukhov, Oleg; Piskunov, Nikolai; O'Mara, B. J. et al.

Ingår i 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, s. 766, 2001

Recent Developments of the VALD Database

Stempels, H.C.; Piskunov, Nikolai; Barklem, Paul

Ingår i 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, s. 878, 2001

Broadening of Spectral Lines of Singly Ionised Atoms by Collisions with Neutral Hydrogen Atoms

Barklem, Paul; O'Mara, B.J.

Ingår i 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, ASP Conference Proceedings, Vol. 223., s. 772, 2001

Mg line formation in late-type stellar atmospheres: II. Calculations in a grid of 1D models

Martinez Osorio, Yeisson Fabian; Barklem, Paul