Chandra Imaging of the Wide Separation Quasar Pair 2345+007

Details Chandra Imaging of the Wide Separation Quasar Pair 2345+007 Chandra Imaging of the Wide Separation Quasar Pair 2345+007

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710506g&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #105.06; Bulletin of the American Astronomical Society, Vol. 32, p.1578

Astronomy and Astrophysics

Astronomy

Scientific paper

We have imaged with Chandra the wide (7'') separation quasar pair Q2345+007 to determine whether it is a binary quasar or a gravitational lens and to probe the nature of the lensing matter. With nearly identical optical spectra and identical redshifts, this quasar pair remains the most intriguing example of an observed configuration which seems to require the presence of massive, concentrated dark matter acting as a gravitational lens. We present an analysis of the quasars X-ray properties and describe results of our tests for extended emission both centered on the quasar pair, and at the positions of mass concentrations suggested from optical galaxy counts.

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