Faculty Advisor

Dick, Frank A.

Abstract

The Sloan Digital Sky Survey (SDSS) is a large imaging and spectroscopic survey. We took the imaging and spectral data of a sample of galaxies at redshift from 0 to 1 from the SDSS database and aimed at studying the evolution of their rest-frame luminosity and color with redshift. We found that the galaxy distribution is bimodal in all colors in all redshift bins, from which we can classify galaxies into red and blue types. Further, this bimodal distribution has become redder towards present, which suggests the aging of galaxies. Additionally, we found that galaxy luminosity increases with redshift and the number ratio of red to blue galaxies increases with luminosity.

Publisher

Worcester Polytechnic Institute

Date Accepted

April 2012

Major

Physics

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Physics

Share

COinS