- Title
- Cosmology with high-redshift (z>1) galaxy surveys
- Date
- 2022.04.04
- Writer
- 원소영
- 게시글 내용
-
Title : Cosmology with high-redshift (z>1) galaxy surveys
Speaker : 정동희 교수님 (Prof. Donghui Jeong)
Date & Time : 2022.04.08 (Fri) 10:30 AM
Location : Online (https://yonsei.zoom.us/j/97961867951?pwd=cTVyNUtlV0ZKUWFrQXZCODVVT1VRdz09, PASSWORD:astrograd, It will be open at 10:00) * 문의: 정애리 교수, achung@yonsei.ac.kr
Abstract
Thanks to various observation campaigns over the past two decades, we have determinedthe most concordance Lambda-CDM cosmology parameters to sub-percent precision.The precision, however, does not guarantee the accuracy of the model. For example,the nature of 95 percent of the Lambda-CDM cosmology is unknown to us; hence, nameddark matter and dark energy. The precision measurements also reveal tensions betweencosmological parameters estimated from different probes, notably the Hubble parametermeasured from the CMB versus the local observations. Again, the accurate cosmologymodel should come from observations, and the high-redshift (z>1) galaxy surveys are atthe frontier. In this talk, I will show how we clarify the physical cosmology from largescale-structure traced by high-redshift (z>1) galaxies and what is required to exploit thecosmological information buried in galaxies' nonlinear clustering.* Talk to be delivered in English
Biography
2020 - current Professor (part-time), Korea Institute for Advanced Study
2020 - current Associate Professor, Eberly College of Science, The Pennsylvania State Univ.
2014 - 2020 Assistant Professor, Eberly College of Science, The Pennsylvania State Univ.
2011 - 2014 Postdoctoral Scholar, Center for Astrophysical Sciences, Johns Hopkins Univ.
2010 – 2011 Robinson Postdoctoral Scholar in Theoretical Cosmology, CalTech
2005 - 2010 Ph.D. Astronomy, The University of Texas at Austin2002 B.A. Physics, KAIST
- 발표자
- Prof. Donghui Jeong