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- Seminars and Workshops
- Institute of Astronomy and Astrophysics
- Location
Online
- Speaker Name
Alessandro Sonnenfeld (Netherlands)
- State
Definitive
- Url
Gravitational lensing for galaxy evolution
2021-02-23 16:00 - 17:00
Galaxies are systems that convert gas into stars. In order to understand galaxy evolution it is necessary to obtain an accurate account of the efficiency of star formation of galaxies as a function of time and environment. This in turn requires robust mass measurements. Gravitational lensing is one of the few available tools for measuring masses at cosmological distances. Weak lensing probes the dark matter distribution, which sets the amount and the temperature of the initial gas reservoir, while strong lensing is sensitive to the stellar component of galaxies. The combination of weak and strong lensing can therefore help greatly in our understanding of the baryon cycle. I will give an overview of the most recent discoveries enabled by gravitational lensing observations in the field of galaxy evolution and discuss the possibilities that the LSST will open up in this important area of research.
