1.2k citations · 4.5k across the 67 of their papers we have counts for
11 papers · 1 filter
An Apparent Redshift Dependence of Quasar Continuum: Implication for Cosmic Dust Extinction?
Xiaoyi Xie, Shiyin Shen, Zhengyi Shao +1
We investigate the luminosity and redshift dependence of the quasar continuum by means of composite spectrum using a large non-BAL radio-quiet quasar sample drawn from the Sloan Di…
Using member galaxy luminosities as halo mass proxies of galaxy groups
Yi Lu, Xiaohu Yang, Shiyin Shen
Reliable halo mass estimation for a given galaxy system plays an important role both in cosmology and galaxy formation studies. Here we set out to find the way that can improve the…
Measuring the X-ray luminosities of SDSS DR7 clusters from RASS
Lei Wang, Xiaohu Yang, Shiyin Shen +8
We use ROSAT All Sky Survey (RASS) broadband X-ray images and the optical clusters identified from SDSS DR7 to estimate the X-ray luminosities around candidate cluste…
The statistical nature of the brightest group galaxies
Shiyin Shen, Xiaohu Yang, Houjun Mo +2
We examine the statistical properties of the brightest group galaxies (BGGs) using a complete spectroscopic sample of groups/clusters of galaxies selected from the Data Release 7 o…
The growth of the disk galaxy UGC8802
R. X. Chang, S. Y. Shen, J. L. Hou
The disk galaxy UGC8802 has high neutral gas content and a flat profile of star formation rate compared to other disk galaxies with similar stellar mass. It also shows a steep meta…
The orientation of the nuclear obscurer of the AGNs
Shiyin Shen, Zhengyi Shao, Minfeng Gu
We examine the distribution of axis ratios of a large sample of disk galaxies hosting type 2 AGNs selected from the Sloan Digital Sky Survey and compare it with a well-defined cont…