445 citations · 3.5k across the 41 of their papers we have counts for
Showing 2002 · astro-phShow all
2 papers · 2 filters
astro-ph2002
AGNs among ROSAT Blank Field Sources
I. Cagnoni, M. Elvis, D. -W. Kim +3
We selected a sample of sources with high X-ray over optical flux ratio from the ROSAT PSPC archives. Out of the 16 sources in our sample, one is a (possibly extreme) BL Lac and tw…
astro-ph2002
The Far Ultraviolet Spectroscopic picture of the Missing Baryons in the Local Group
F. Nicastro, A. Zezas, M. Elvis +6
The number of detected baryons in the low-redshift Universe (z < 1) is far small er than the corresponding number of baryons observed at higher redshift. According to hydrodynamica…