Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...318..490h&link_type=abstract
Astronomy and Astrophysics, v.318, p.490-494
Astronomy and Astrophysics
Astrophysics
13
Stars: Binaries, Stars: Neutron, Stars: Emission-Line, Be, Stars: Individual: Rx J0529.8-6556, X-Rays: Stars
Scientific paper
We report the discovery of RXJ0529.8-6556, a new transient X-ray source in the direction of the Large Magellanic Cloud. From 32 pointed ROSAT observations distributed over 3.5-years one single outburst with 0.25cts/s was detected while from most observations only upper limits could be derived. During the outburst periodic modulation of the X-ray flux with a period of 69.5s is seen. Optical spectra taken from the B=14.5mag star closest to the X-ray position, reveal the presence of an Hα emission line and yield a spectral type of B2e. The radial velocities derived from the Balmer absorption lines are consistent with that of the Large Magellanic Cloud. Thus RX J0529.8-6556 is the fifth accretion powered X-ray binary pulsar, the fourth with a Be star companion, known in this nearby galaxy.
Dennerl Konrad
Haberl Franck
Pietsch Wolfgang
Reinsch Klaus
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