27 citations · 29 across the 2 of their papers we have counts for
Showing astro-phShow all
2 papers · 1 filter
astro-ph2006★ 27 cited
The K-band properties of Seyfert 2 galaxies
ZhiXin Peng, Qiusheng Gu, Jorge Melnick +1
It is well known that the [O {\sc iii}]5007 emission line and hard X-ray(2-10keV) luminosities are good indicators of AGN activities and that the near and mid-infrared emission…
astro-ph2000★ 2 cited
The Most Distant X-ray Clusters and the Evolution of their Space Density
P. Rosati, S. Borgani, R. Della Ceca +3
We briefly review our current knowledge of the space density of distant X-ray clusters as measured by several ROSAT serendipitous surveys. We compare old and new determinations of…