Zobrazeno 1 - 2
of 2
pro vyhledávání: '"John S. Kruper"'
Publikováno v:
Symposium - International Astronomical Union. 119:253-259
We present results of studies carried out with the imaging instruments on the Einstein Observatory. We summarize a statistical analysis of the X-ray properties of optically selected, radio quiet quasars including nine new high redshift quasars detect
Autor:
John S. Kruper, Claude R. Canizares
Publikováno v:
The Astrophysical Journal. 343:66
BVRI photmetry of a sample of X-ray selected AGNs is examined to determine the cause of the red colors of low-luminosity objects in such samples. It is found that the redness is generally due to the presence of an underlying galaxy and not due to red