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X-ray absorption and high redshift quasarsThe low energy cut-offs toward radio-loud quasars with z greater than 2, red quasars, and broad absorption line quasars are discussed. The X-ray absorption seems to be common among different types of red shift quasar. The Rosat position sensitive proportional counter (PSPC) spectra of z = 3 quasars and of a red quasar are presented. Broad absorption lines show outflow velocities of up to 0.1 c to 0.2 c. The advantages and the disadvantages of high red shift observations are underlined.
Document ID
19970024647
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Elvis, Martin
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA United States)
Date Acquired
August 17, 2013
Publication Date
February 1, 1996
Subject Category
Astronomy
Accession Number
97N24404
Funding Number(s)
CONTRACT_GRANT: NAS8-39073
CONTRACT_GRANT: NAG5-1536
CONTRACT_GRANT: NAG5-2563
CONTRACT_GRANT: NAG5-3066
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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