Some recent results on extragalactic X-ray sources from the Einstein Observatory

Conference · Thu Jan 01 04:00:00 EST 1981 · Adv. Space Res.; (United States)

OSTI ID:5332314

Gorenstein, P

Extragalactic studies by the Harvard/Smithsonian group with the Einstein Observatory have emphasized quasars and galaxy clusters. More than 100 quasars have been detected, including 20 serendipitous discoveries. The X-ray to optical luminosity ratio for radio loud quasars is on the average three times that of radio quiet ones. X-ray images of galaxy clusters reveal a variety of morphological types which may correspond to different stages in their evolution. Several examples of bimodal clusters have been discovered. An X-ray plume associated with M86 appears to be gas being stripped. A mass between 1.7 x 10 to the 13th solar masses and 4.0 x 10 to the 13th solar masses has been derived for M87 from X-ray studies.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass.
• OSTI ID: 5332314
• Report Number(s): CONF-8006190-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 1:13
• Country of Publication: United States
• Language: English

Related Subjects

640103 -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
GALAXY CLUSTERS
LUMINOSITY
MAPS
MATHEMATICS
MORPHOLOGY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASARS
STATISTICS