IEU > Event > Reply

Seminar and Conference

:: Reply ::

Name

Password

E-mail

Homepage

Option

html

Category

Subject

>
>
> Title: New Perspective on Galaxy Clustering and Cosmology: General Relativistic Effect
> Speaker: Dr. Jaiyul Yoo(Harvard University)  
> Date & Time: 4:00 PM, March 16 (Wed.), 2011 
> Place: International Education Building(국제교육관)  615 
> Host: Uros Seljak 
> Abstract : The overall standard descriptions of cosmological probes are theoretically inconsistent in the context of general relativity, as they are based on Newtonian descriptions or relativistic but gauge-dependent descriptions. The gauge-invariance is a necessary condition for theoretical descriptions of observable quantities. We discuss how to remedy these generic problems in cosmology with galaxy clustering as our first worked example. We compute the cross-correlation of large-scale structure with CMB and its auto power spectrum, and the correct general relativistic predictions are significantly different from the standard Newtonian predictions on large scales. Its departure is already measured in the current galaxy surveys, and without proper relativistic descriptions significant systematic errors in theoretical modeling will be present in future surveys.
>

Link #1

Link #2

File

Type the letter in the image.

Academic Activities

Seminar and Conference