- Title
- [10/30] The TRGB Cosmology in 2020
- Date
- 2020.10.26
- Writer
- 신용광
- 게시글 내용
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Title: The TRGB Cosmology in 2020
Date & Time: Friday, October 30th, 2020, 11:00 AM
Location: Online
( https://zoom.us/j/6210767044?pwd=SkRuRzZtbjcwQkszS2g4QThiWVl3dz09 , It will open at 10:30 AM)
Language: English
Speaker: Prof. MyungGyoon Lee (Seoul National University)
Abstract
Distance is the most fundamental parameter in cosmology, but it is challenging to derive a distance to a galaxy. The tip of the red giant branch (TRGB) is a precise and efficient standard candle. The TRGB can be applied to any types of galaxies, while Cepheids can be used only for late-type galaxies. In the era of precision cosmology, the role of the TRGB is becoming more and more important. I will present a recent progress of the TRGB cosmology, including the Hubble tension and the extent of dark matter in Virgo.
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