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Astron. Astrophys. 335, 121-122 (1998)

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A bright QSO near 3C273

M.A. Read 1, L. Miller 2 and G. Hasinger 3

1 Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK (mar@roe.ac.uk)
2 Department of Physics, Nuclear & Astrophysics Laboratory, Keble Road, Oxford OX1 3RH, UK
3 Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany

Received 11 March 1998 / Accepted 27 March 1998


We present the discovery of RX J1230.8+0115 a QSO which is among the brightest known at optical wavelengths. The QSO was discovered because of both its ultra-violet excess and its X-ray emission as part of an identification programme of ROSAT X-ray sources. The QSO is only [FORMULA] and 200 Mpc from 3C273. The two QSOs have a projected separation of 10 Mpc (at z=0.117) making this object particularly interesting for studies of intervening absorption, and highlights the existence of incompleteness in existing surveys for bright QSOs.

Key words: galaxies: quasars: individual: RX J1230.8+0115 – X-rays: galaxies

Send offprint requests to: M.A. Read

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© European Southern Observatory (ESO) 1998

Online publication: June 12, 1998