2 papers
astro-ph1999
Soft X-ray AGN Luminosity Function from ROSAT Surveys I. Cosmological Evolution and Contribution to the Soft X-ray Background
Takamitsu Miyaji, Guenther Hasinger, Maarten Schmidt
We investigate the evolution of the 0.5-2 keV soft X-ray luminosity function (SXLF) of active galactic nuclei (AGN) using results from ROSAT surveys of various depth, ranging from…
astro-ph1997
The ROSAT Deep Survey II. Optical identification, photomettry and spectra of sources in the Lockman field
Maarten Schmidt, Guenther Hasinger, James Gunn +7
The ROSAT Deep Survey includes a complete sample of 50 X-ray sources with fluxes in the keV band larger than 5.5 erg cm s in the Lockman field (H…