Martin Sahlén
Forskare vid Institutionen för fysik och astronomi; Astronomi och rymdfysik
- Telefon:
- 018-471 59 70
- E-post:
- martin.sahlen@physics.uu.se
- Besöksadress:
- Ångströmlaboratoriet, Regementsvägen 10
- Postadress:
- Box 516
751 37 UPPSALA
- ORCID:
- 0000-0003-0973-4804
Kort presentation
Docent i astronomi med inriktning mot astrofysik.
FORSKNING
2021-2026: PI, "The Galaxy – Dark Matter Connection with HST, JWST and EUCLID" (8 MSEK)
2022-2024: PI, "Searching for New Physics in the Early Universe" (1 MSEK)
2023-2027: PI, "Astronomical object classification and anomaly detection with complex spectroscopic 4MOST data sets" (4 MSEK)
UNDERVISNINGAnsvarig för och lärare på den tvärvetenskapliga kursen "Tre synsätt på kosmologi" (10 hp).
Nyckelord
- docent
- bayesian inference
- astrophysics
- astronomy
- cosmology
Forskning
Teoretiska och observationella studier av universums storskaliga struktur genom galaxhopar, tomrum, och universums första galaxer - för att förstå galaxfysik/stjärnbildning, mörk energi, mörk materia, kosmisk inflation, och återjoniseringsprocessen i det tidiga universum.
Deltagare i de vetenskapliga projekten 4MOST, BUFFALO, Euclid och SKA Observatory. Extern medverkande i Dark Energy Survey. Även delaktig i den vetenskapliga exploateringen av data från Hubble Space Telescope och kommande James Webb Space Telescope.
Teoretiska studier av kosmologins filosofi, såsom modellinferens, finjustering av naturkonstanter och multiversum-förklaringar.

Publikationer
Senaste publikationer
Euclid: IV. The NISP Calibration Unit
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid: IV. The NISP Calibration Unit
- Ladda ner fulltext (pdf) av Euclid: IV. The NISP Calibration Unit
Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
- Ladda ner fulltext (pdf) av Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
Euclid I. Overview of the Euclid mission
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid I. Overview of the Euclid mission
- Ladda ner fulltext (pdf) av Euclid I. Overview of the Euclid mission
Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
- Ladda ner fulltext (pdf) av Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations
- Ladda ner fulltext (pdf) av Euclid preparation: LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations
Alla publikationer
Artiklar i tidskrift
Euclid: IV. The NISP Calibration Unit
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid: IV. The NISP Calibration Unit
- Ladda ner fulltext (pdf) av Euclid: IV. The NISP Calibration Unit
Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
- Ladda ner fulltext (pdf) av Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
Euclid I. Overview of the Euclid mission
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid I. Overview of the Euclid mission
- Ladda ner fulltext (pdf) av Euclid I. Overview of the Euclid mission
Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
- Ladda ner fulltext (pdf) av Euclid preparation: LXIV. The Cosmic Dawn Survey (DAWN) of the Euclid Deep and Auxiliary Fields
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations
- Ladda ner fulltext (pdf) av Euclid preparation: LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXV. Determining the weak lensing mass accuracy and precision for galaxy clusters
- Ladda ner fulltext (pdf) av Euclid preparation: LXV. Determining the weak lensing mass accuracy and precision for galaxy clusters
Euclid preparation: LXVIII. Extracting physical parameters from galaxies with machine learning
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXVIII. Extracting physical parameters from galaxies with machine learning
- Ladda ner fulltext (pdf) av Euclid preparation: LXVIII. Extracting physical parameters from galaxies with machine learning
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXX. Forecasting detection limits for intracluster light in the Euclid Wide Survey
- Ladda ner fulltext (pdf) av Euclid preparation: LXX. Forecasting detection limits for intracluster light in the Euclid Wide Survey
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey
- Ladda ner fulltext (pdf) av Euclid preparation LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LXVI. Impact of line-of-sight projections on the covariance between galaxy cluster multi-wavelength observable properties: insights from hydrodynamic simulations
- Ladda ner fulltext (pdf) av Euclid preparation LXVI. Impact of line-of-sight projections on the covariance between galaxy cluster multi-wavelength observable properties: insights from hydrodynamic simulations
Euclid: II. The VIS instrument
Ingår i Astronomy and Astrophysics, 2025
Euclid: III. The NISP Instrument
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid: III. The NISP Instrument
- Ladda ner fulltext (pdf) av Euclid: III. The NISP Instrument
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LVII. Observational expectations for redshift z<7 active galactic nuclei in the Euclid Wide and Deep surveys
- Ladda ner fulltext (pdf) av Euclid preparation: LVII. Observational expectations for redshift z<7 active galactic nuclei in the Euclid Wide and Deep surveys
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax
- Ladda ner fulltext (pdf) av Euclid preparation LXI. Cosmic Dawn Survey: 'Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LXII. Simulations and non-linearities beyond Lambda cold dark matter. 1. Numerical methods and validation
- Ladda ner fulltext (pdf) av Euclid preparation: LXII. Simulations and non-linearities beyond Lambda cold dark matter. 1. Numerical methods and validation
Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models
- Ladda ner fulltext (pdf) av Euclid preparation: LVI. Sensitivity to non-standard particle dark matter models
Euclid preparation: LVIII. Detecting extragalactic globular clusters in the Euclid survey
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation: LVIII. Detecting extragalactic globular clusters in the Euclid survey
- Ladda ner fulltext (pdf) av Euclid preparation: LVIII. Detecting extragalactic globular clusters in the Euclid survey
Euclid preparation LIX. Angular power spectra from discrete observations
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LIX. Angular power spectra from discrete observations
- Ladda ner fulltext (pdf) av Euclid preparation LIX. Angular power spectra from discrete observations
Ingår i Monthly notices of the Royal Astronomical Society, s. 1404-1429, 2025
- DOI för The XMM Cluster Survey: automating the estimation of hydrostatic mass for large samples of galaxy clusters - I. Methodology, validation, and application to the SDSSRM-XCS sample
- Ladda ner fulltext (pdf) av The XMM Cluster Survey: automating the estimation of hydrostatic mass for large samples of galaxy clusters - I. Methodology, validation, and application to the SDSSRM-XCS sample
Euclid preparation LIV. Sensitivity to neutrino parameters
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LIV. Sensitivity to neutrino parameters
- Ladda ner fulltext (pdf) av Euclid preparation LIV. Sensitivity to neutrino parameters
Ingår i Astronomy and Astrophysics, 2025
- DOI för Euclid preparation LV. Exploring the properties of proto-clusters in the Simulated Euclid Wide Survey
- Ladda ner fulltext (pdf) av Euclid preparation LV. Exploring the properties of proto-clusters in the Simulated Euclid Wide Survey
Euclid preparation: L. Calibration of the halo linear bias in Î(v)CDM cosmologies
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation: L. Calibration of the halo linear bias in Î(v)CDM cosmologies
- Ladda ner fulltext (pdf) av Euclid preparation: L. Calibration of the halo linear bias in Î(v)CDM cosmologies
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation: LI. Forecasting the recovery of galaxy physical properties and their relations with template-fitting and machine-learning methods
- Ladda ner fulltext (pdf) av Euclid preparation: LI. Forecasting the recovery of galaxy physical properties and their relations with template-fitting and machine-learning methods
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation XLVII. Improving cosmological constraints using a new multi-tracer method with the spectroscopic and photometric samples
- Ladda ner fulltext (pdf) av Euclid preparation XLVII. Improving cosmological constraints using a new multi-tracer method with the spectroscopic and photometric samples
Euclid preparation: XLVI. The near-infrared background dipole experiment with Euclid
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation: XLVI. The near-infrared background dipole experiment with Euclid
- Ladda ner fulltext (pdf) av Euclid preparation: XLVI. The near-infrared background dipole experiment with Euclid
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation: XLV. Optical emission-line predictions of intermediate-z galaxy populations in GAEA for the Euclid Deep and Wide Surveys
- Ladda ner fulltext (pdf) av Euclid preparation: XLV. Optical emission-line predictions of intermediate-z galaxy populations in GAEA for the Euclid Deep and Wide Surveys
Euclid preparation XLI. Galaxy power spectrum modelling in real space
Ingår i Astronomy and Astrophysics, 2024
- DOI för Euclid preparation XLI. Galaxy power spectrum modelling in real space
- Ladda ner fulltext (pdf) av Euclid preparation XLI. Galaxy power spectrum modelling in real space
Ingår i Monthly notices of the Royal Astronomical Society, s. 5267-5290, 2023
- DOI för The XMM cluster survey: exploring scaling relations and completeness of the dark energy survey year 3 redMaPPer cluster catalogue
- Ladda ner fulltext (pdf) av The XMM cluster survey: exploring scaling relations and completeness of the dark energy survey year 3 redMaPPer cluster catalogue
Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids
Ingår i Astronomy and Astrophysics, 2022
Velocity dispersions of clusters in the Dark Energy Survey Y3 redMaPPer catalogue
Ingår i Monthly notices of the Royal Astronomical Society, s. 4696-4717, 2022
Ingår i Monthly notices of the Royal Astronomical Society, s. 3030-3044, 2022
- DOI för Conditions for detecting lensed Population III galaxies in blind surveys with the James Webb Space Telescope, the Roman Space Telescope, and Euclid
- Ladda ner fulltext (pdf) av Conditions for detecting lensed Population III galaxies in blind surveys with the James Webb Space Telescope, the Roman Space Telescope, and Euclid
Euclid: cosmological forecasts from the void size function
Ingår i Astronomy and Astrophysics, 2022
- DOI för Euclid: cosmological forecasts from the void size function
- Ladda ner fulltext (pdf) av Euclid: cosmological forecasts from the void size function
Ingår i Monthly notices of the Royal Astronomical Society, s. 657-674, 2022
- DOI för The XMM Cluster Survey: an independent demonstration of the fidelity of the eFEDS galaxy cluster data products and implications for future studies
- Ladda ner fulltext (pdf) av The XMM Cluster Survey: an independent demonstration of the fidelity of the eFEDS galaxy cluster data products and implications for future studies
Environmental dependence of X-ray and optical properties of galaxy clusters
Ingår i Monthly notices of the Royal Astronomical Society, s. 1953-1963, 2021
Galaxy population constraints on cosmology and star formation in the early Universe
Ingår i The Astrophysical Journal, 2021
Ingår i \mnras, s. 4591-4606, 2020
- DOI för Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters
- Ladda ner fulltext (pdf) av Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters
Ingår i Publications Astronomical Society of Australia, 2020
Ingår i Monthly notices of the Royal Astronomical Society, s. 855-870, 2020
4MOST: Project overview and information for the First Call for Proposals
Ingår i The Messenger, s. 3-11, 2019
4MOST Consortium Survey 5: eROSITA Galaxy Cluster Redshift Survey
Ingår i The Messenger, s. 39-41, 2019
4MOST Consortium Survey 8: Cosmology Redshift Survey (CRS)
Ingår i The Messenger, s. 50-53, 2019
Mass variance from archival X-ray properties of Dark Energy Survey Year-1 galaxy clusters
Ingår i Monthly notices of the Royal Astronomical Society, s. 3341-3354, 2019
Ingår i Monthly notices of the Royal Astronomical Society, s. 1-17, 2019
- DOI för Galaxies in X-ray selected clusters and groups in Dark Energy Survey data - II. Hierarchical Bayesian modelling of the red-sequence galaxy luminosity function
- Ladda ner fulltext (pdf) av Galaxies in X-ray selected clusters and groups in Dark Energy Survey data - II. Hierarchical Bayesian modelling of the red-sequence galaxy luminosity function
Dark Energy Surveyed Year 1 results: calibration of cluster mis-centring in the redMaPPer catalogues
Ingår i Monthly notices of the Royal Astronomical Society, s. 2578-2593, 2019
Cluster-void degeneracy breaking: Neutrino properties and dark energy
Ingår i Physical Review D. Particles and fields, 2019
Cluster-void degeneracy breaking: Modified gravity in the balance
Ingår i Physical Review D. Particles and fields, 2018
The XXL survey: First results and future
Ingår i Astronomical Notes - Astronomische Nachrichten, s. 334-341, 2017
Ingår i Montly notices of the royal astronomical society, s. 413-428, 2016
The XMM Cluster Survey: the halo occupation number of BOSS galaxies in X-ray clusters
Ingår i Monthly notices of the Royal Astronomical Society, s. 1929-1943, 2016
Artiklar, forskningsöversikt
Fundamental physics with the Square Kilometre Array
Ingår i Publications Astronomical Society of Australia, 2020
Kapitel i böcker, delar av antologi
On Probability and Cosmology: Inference Beyond Data?
Ingår i The Philosophy of Cosmology, s. 429-446, Cambridge University Press, 2017