Discovery of a new component in the gravitationally lensed quasar 0957 + 561

Details Discovery of a new component in the gravitationally lensed quasar 0957 + 561 Discovery of a new component in the gravitationally lensed quasar 0957 + 561

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410...21j&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 1, p. 21-28.

Astronomy and Astrophysics

Astronomy

6

Gravitational Lenses, Quasars, X Ray Sources, Luminosity, Proportional Counters, Spectral Emission, X Ray Astronomy

Scientific paper

X-ray observations of the gravitationally lensed quasar 0957 + 561 with the Einstein Observatory High Resolution Imager indicate the presence of a new component in the system. The significantly greater X-ray intensity of image A compared with image B and the extended X-ray emission can be interpreted as the gravitational lensing of a quasi-circular X-ray emitting region into a partial Einstein ring. It is suggested that the observed X-ray emission is produced by a strong cooling flow which could arise were 0957 + 561 embedded in a group of cluster galaxies.

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