Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-09-21
Chin.J.Astron.Astrophys.7:639-648,2007
Astronomy and Astrophysics
Astrophysics
16 pages, 17 figures
Scientific paper
10.1088/1009-9271/7/5/04
Using a volume-limited sample of Main Galaxies from the SDSS Data Release 5, we investigate the dependence of galaxy properties on local environment. For each galaxy, the local three-dimensional density is calculated. We find that galaxy morphologies strongly depend on local environment: galaxies in dense environments have predominantly early type morphologies, but other galaxy properties do not present significant dependence on local environment. Clearly, this puts a important constraint on proposed physical mechanisms.
Deng Xin-Fa
He Cong-Gen
He Ji-Zhou
Jiang Peng
Xin Yong
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