Open AccessAn X‐ray‐absorbed radio‐quiet QSO with an intervening strong metal absorption‐line system
Author(s) -
Page M. J.,
Mittaz J. P. D.,
Carrera F. J.
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03147.x
Subject(s) - physics , absorption (acoustics) , quiet , astrophysics , redshift , absorption spectroscopy , line (geometry) , quasar , spectral line , x ray , metal , astronomy , optics , galaxy , materials science , geometry , mathematics , metallurgy
We find evidence for significant X‐ray absorption in the QSO RX J005734.78−272827.4, along with strong absorption lines in its optical spectrum. We propose that the absorption lines are due to an intervening metal‐line system at a redshift of z =0.628, and show that this intervening system is also the probable cause of the X‐ray absorption. The intervening absorber is inferred to have an X‐ray column of ∼10 22 cm −2 . This is the first time that an absorption‐line system has been identified with an X‐ray absorber in a radio‐quiet object.