Measures of luminous and dark matter in galaxies across time
- Author(s)
- Jonathan Freundlich, Gauri Sharma, Sabine Thater, Mousumi Das, Benoit Famaey, Katherine Freese, Marie Korsaga, Julien Lavalle, Chung Pei Ma, Moses Mogotsi, Cristina Popescu, Francesca Rizzo, Laura V. Sales, Miguel A. Sanchez-Conde, Glenn van de Ven, Hongsheng Zhao, Alice Zocchi
- Abstract
Dark matter is one of the pillars of the current standard model of structure formation: it is assumed to constitute most of the matter in the Universe. However, it can so far only be probed indirectly through its gravitational effects, and its nature remains elusive. In this focus meeting, we discussed different methods used to estimate galaxies' visible and dark matter masses in the nearby and distant Universe. We reviewed successes of the standard model relying on cold dark matter, confronted observations with simulations, and highlighted inconsistencies between the two. We discussed how robust mass measurements can help plan, perform, and refine particle dark matter searches. We further exchanged about alternatives to cold dark matter, such as warm, self-interacting, and fuzzy dark matter, as well as modified gravity. Finally, we discussed prospects and strategies that could be implemented to reveal the nature of this crucial component of the Universe.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Université de Strasbourg, Indian Institute of Astrophysics, University of Texas, Austin, Université Joseph Ki-Zerbo, Instituto de Astrofísica de Andalucía (CSIC), University of Montpellier, University of California, Berkeley, South African Astronomical Observatory (SAAO), University of Central Lancashire, University of Groningen, University of California, Riverside, Universidad Autónoma de Madrid, University of St. Andrews
- Journal
- IAU General Assembly Meeting
- No. of pages
- 12
- Publication date
- 11-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics, 103003 Astronomy, 103044 Cosmology
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/3c17f85d-8b6d-44f8-9fb2-63750693a14a