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, Lägerhyddsvägen 1
- Postadress:
- Box 516
751 20 UPPSALA
- ORCID:
- 0000-0003-0973-4804
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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
- astronomy
- astrophysics
- bayesian inference
- cosmology
- docent
Biografi
Denna text finns inte på svenska, därför visas den engelska versionen.
Hemsida: http://www.astro.uu.se/~msahlen/
Martin Sahlén is docent and researcher in astronomy with specialization in astrophysics at Uppsala University. He studied at the Royal Institute of Technology (KTH) and Cambridge, earned his PhD from the University of Sussex in 2009, and was a postdoctoral fellow at Cambridge, Stockholm and Oxford. He was a Fulbright fellow at Johns Hopkins, and a Natural Sciences fellow at the Swedish Collegium for Advanced Study. He joined Uppsala University in 2016.
Sahlén's research focuses on the large-scale structure of the Universe, and its connection to astrophysics and fundamental physics. In particular, he is investigating the very first generations of galaxies, and late-Universe galaxy distributions. Recent work includes the demonstration of the power of galaxy clusters and cosmic voids as probes of deviations from General Relativity and to measure the mass of neutrinos, the first cosmological parameter estimation based on cosmic voids, and discovery of a powerful new test of modified gravity theories. He is member of the 4-metre Multi-Object Spectroscopic Telescope (4MOST), the BUFFALO survey, the Euclid Consortium, the SKA Observatory, and an external collaborator in the Dark Energy Survey. Sahlén also works on the philosophy of astrophysics and cosmology. His research was highlighted in “The Best Writing on Mathematics 2018”.
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 preparation XLI. Galaxy power spectrum modelling in real space (2024)
- Euclid preparation (2024)
- The XMM cluster survey (2023)
- Euclid (2022)
- Euclid (2022)
Alla publikationer
Artiklar
- Euclid preparation XLI. Galaxy power spectrum modelling in real space (2024)
- Euclid preparation (2024)
- The XMM cluster survey (2023)
- Euclid (2022)
- Euclid (2022)
- The XMM Cluster Survey (2022)
- Conditions for detecting lensed Population III galaxies in blind surveys with the James Webb Space Telescope, the Roman Space Telescope, and Euclid (2022)
- Velocity dispersions of clusters in the Dark Energy Survey Y3 redMaPPer catalogue (2022)
- Environmental dependence of X-ray and optical properties of galaxy clusters (2021)
- Galaxy population constraints on cosmology and star formation in the early Universe (2021)
- Cosmology with Phase 1 of the Square Kilometre Array Red Book 2018 (2020)
- Stellar mass as a galaxy cluster mass proxy (2020)
- Fundamental physics with the Square Kilometre Array (2020)
- Bubble mapping with the Square Kilometre Array (2020)
- 4MOST (2019)
- Mass variance from archival X-ray properties of Dark Energy Survey Year-1 galaxy clusters (2019)
- 4MOST Consortium Survey 5 (2019)
- 4MOST Consortium Survey 8 (2019)
- Cluster-void degeneracy breaking: Neutrino properties and dark energy (2019)
- Dark Energy Surveyed Year 1 results (2019)
- Galaxies in X-ray selected clusters and groups in Dark Energy Survey data - II. Hierarchical Bayesian modelling of the red-sequence galaxy luminosity function (2019)
- Cluster-void degeneracy breaking (2018)
- The XXL survey (2017)
- The XMM Cluster Survey (2016)
- The XMM Cluster Survey (2016)