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Einstein X-ray observations of QSO's with absorption-line systems (1982)

Junkkarinen, V. T. ; Burbidge, E. M. ; Marscher, A. P.

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Publication Date: 2019-06-28

Description: The detection of X-ray emission from eight QSO's is reported, plus an upper limit to the X-ray flux from one QSO, using the Einstein X-ray Observatory (HEAO-2). Each object in the sample contains at least one absorption-line system that has been identified in its optical spectrum. The present results are combined with those of other investigators to form a sample of 44 absorption-line QSO's (with 2 sub e greater than 1.2) which have been observed in the X-ray. This sample cannot be distinguished, in terms of X-ray properties, from one which consists of QSO's in which no absorption systems have been identified. These results are consistent with extrinsic models for absorption-line clouds, as well as with current versions of intrinsic models.

Keywords: ASTRONOMY

Type: Astronomical Journal; 87; June 198

Format: text

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