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Issue A&A
Volume 385, Number 3, April III 2002
Page(s) L31 - L35
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:20020272



A&A 385, L31-L35 (2002)
DOI: 10.1051/0004-6361:20020272

Letter

XMM-Newton observation of the BAL Quasar PHL 5200:

The big surprise
W. Brinkmann1, E. Ferrero1 and M. Gliozzi2

1  Centre for Interdisciplinary Plasma Science, Max-Planck-Institut für Extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany
2  George Mason University, Dept. of Phys. and Astron., MS 3F3, 4400 University Dr., Fairfax, VA 22030-4444, USA

(Received 30 January 2002 / Accepted 21 February 2002 )

Abstract
XMM-Newton observations of the BAL quasar revealed that the X-ray emission attributed to the quasar originates from a nearby, optically unidentified radio source. Although visible in X-rays as well the flux from is by a factor $\ga$20 smaller than previously anticipated. Thus most of the scenarios for a physical interpretation of the BAL phenomenon, based on the apparently unexpected X-ray properties of this quasar have to be revisited. We further discuss the properties of the optically very faint radio source.


Key words: galaxies: active -- quasars -- X-rays: galaxies

Offprint request: W. Brinkmann, wpb@rzg.mpg.de

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© ESO 2002


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