NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
X-ray surveys as tools to investigate the cosmological evolution of quasars, BL Lac objects and clusters of galaxiesA progress report on a major extension of the Einstein Observatory Medium Sensitivity Survey (MSS) is presented. The MSS consists of X-ray sources serendipitously discovered with the IPC on board the Einstein Observatory in the energy range 0.3-3.5 keV, at fluxes between 10 to the -11th and 10 to the -13th ergs/sq cm/s. The basic properties of the extragalactic sources identified with AGN and clusters of galaxies are discussed.
Document ID
19880042431
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gioia, Isabella M.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Maccacaro, Tommaso
(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; CNR, Istituto di Radioastronomia Bologna, Italy)
Wolter, Anna
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Astrophysics
Meeting Information
Meeting: Observational cosmology
Location: Beijing
Country: China
Start Date: August 25, 1986
End Date: August 30, 1986
Accession Number
88A29658
Funding Number(s)
CONTRACT_GRANT: NAS8-30751
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available