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.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Liu, Tingting

Contributeurs

• U.S. Department of Energy

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-042612-111755

Advisor

• Dick, Frank A.

Year

• 2012

Date created

• 2012-04-26

Resource type

• Major Qualifying Project

Major

• Physics

Rights statement

• In Copyright

Dernière modification

• 2021-09-11