Environmental dependence of galaxy age in the Main galaxy sample of SDSS DR10

Xin-Fa Deng1*
School of Science, Nanchang University, Jiangxi, China, 330031

Received: May 05 2014 | Accepted: August 29 2014

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Using two volume-limited Main galaxy samples of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10), I investigate the environmental dependence of galaxy age, and get the same conclusions in two volume-limited Main galaxy samples: old galaxies exist preferentially in the densest regions of the universe, while young galaxies are located preferentially in low density regions. Such an age-density relation is likely a combination of a strong age-stellar mass relation and the stellar mass-density relation.

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Keywords : galaxies: fundamental parameters – galaxies: statistics – galaxies: general