20-24 March 2023
Haus H, Telegrafenberg
Europe/Berlin timezone

Mass models of nearby galaxies from cold gas dynamics

24 Mar 2023, 09:00
40m
Haus H, Telegrafenberg

Haus H, Telegrafenberg

Potsdam, Germany
Invited review talk SESSION 5 : Near-field cosmology and galaxy masses beyond the Local Group SESSION 5 : Near-field cosmology and galaxy masses beyond the Local Group

Speaker

Federico Lelli (INAF)

Description

In this talk I will review techniques and idiosyncrasies in building mass models of disk galaxies using cold gas dynamics. I will particularly focus on HI disks, which are generally more extended than stellar disks, so they allow tracing galaxy dynamics out to the most dark-matter-dominated regions. The combination of HI observations and near-infrared photometry, tracing the distribution of stellar mass, has proven extremely powerful to test both LCDM models of galaxy formation and modified gravity theories such as MOND.

Primary author

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