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Radio loud AGN and the L_X - σrelation of galaxy groups and clusters
Shiyin Shen, Guinevere Kauffmann, Anja von der Linden +2
We use the ROSAT All-Sky Survey to study the X-ray properties of a sample of 625 groups and clusters of galaxies selected from the Sloan Digital Sky Survey. We stack clusters with…
Inclination-Dependent Luminosity Function of Spiral Galaxies in the Sloan Digital Sky Survey: Implication for Dust Extinction
Zhengyi Shao, Quanbao Xiao, Shiyin Shen +3
Using a samples of 61506 spiral galaxies selected from the SDSS DR2, we examine the luminosity function (LF) of spiral galaxies with different inclination angles. We find that the…
Color-magnitude relations of late-type galaxies
Ruixiang Chang, Shiyin Shen, Jinliang Hou +2
We use a large sample of galaxies drawn from the Sloan Digital Sky Survey (SDSS) and Two Micro All Sky Survey (2MASS) to present Color-Magnitude Relations (CMRs) for late-type gala…
The soft X-ray properties of quasars in the Sloan Digital Sky Survey
Shiyin Shen, Simon D. M. White, H. J. Mo +4
We use the ROSAT All Sky Survey (RASS) to study the soft X-ray properties of a homogeneous sample of 46,420 quasars selected from the third data release of the Sloan Digital Sky Su…
The size distribution of galaxies in the Sloan Digital Sky Survey
Shiyin Shen, H. J. Mo, Simon D. M. White +5
abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminos…
The Fundamental Plane of Spiral Galaxies: Theoretical Expectations
Shiyin Shen, H. J. Mo, Chenggang Shu
Current theory of disk galaxy formation is used to study fundamental-plane (FP) type of relations for disk galaxies. We examine how the changes in model parameters affect these rel…