X-ray properties of QSOs and their cosmological implications

Conference · Wed Jan 01 04:00:00 EST 1986 · Ann. N.Y. Acad. Sci.; (United States)

OSTI ID:7022660

Avni, Y

The dependences of the X-ray luminosities of QSOs on redshift and optical luminosities are examined using the data from the optically selected heterogeneous sample study (1982) and complete optically selected sample study (1985) of Avni and Tananbaum. It is observed that the heterogeneous sample is applicable to this type of analysis, that the X-ray luminosity is more dependent on the optical luminosity than the redshift luminosity, and that changes in the X-ray spectral index value from 0.0 to 0.5 do not affect the data. It is concluded that there are correlations between the X-ray and optical luminosities and the relative rates of X-ray and optical cosmological evolution. 22 references.

• Research Organization: Technion - Israel Institute of Technology, Haifa
• OSTI ID: 7022660
• Report Number(s): CONF-841238-
• Conference Information: Journal Name: Ann. N.Y. Acad. Sci.; (United States) Journal Volume: 470
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
COSMOLOGY
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASARS
RADIATIONS
RED SHIFT
VISIBLE RADIATION
X RADIATION