New X-ray and optical observations of the X-ray discovered QSO-galaxy pair 1E 0104.2 + 3153

Details New X-ray and optical observations of the X-ray discovered QSO-galaxy pair 1E 0104.2 + 3153 New X-ray and optical observations of the X-ray discovered QSO-galaxy pair 1E 0104.2 + 3153

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...307..497g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 307, Aug. 15, 1986, p. 497-503.

Astronomy and Astrophysics

Astronomy

14

Galactic Radiation, Quasars, Visual Observation, X Ray Astronomy, Absorption Spectra, Astronomical Spectroscopy, Exosat Satellite, Spectral Line Width

Scientific paper

New X-ray and optical observations are presented of the QSO-galaxy pair 1E 0104.2 + 3153, originally discovered as a serendipitous source in the Einstein Observatory Medium Sensitivity Survey (Gioia et al., 1984). Results from an extremely deep Exosat observation are used to suggest that the QSO rather than the compact group of galaxies is the optical counterpart of the IPC source. High-resolution (1-A) spectroscopy of the broad-absorption-line QSO, which fails to confirm the Ca II H and K absorption features reported by Stocke et al., (1984), is presented and discussed. The presence of broad absorption lines in the QSO spectrum may indicate that intrinsic absorption is the cause of the nondetection of this source in the soft Exosat energy band. Optical monitoring of the QSO over a 2-yr period indicates variability. Possible interpretations of this phenomenon are intrinsic luminosity variation or a cessation of a gravitational lensing effect acting at the time of the Einstein observation.

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