Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.285..693h&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 285, Issue 4, pp. 693-695.
Astronomy and Astrophysics
Astronomy
19
Stars: Individual: M5-V101, Stars: Individual: T Sco, Novae, Cataclysmic Variables, Globular Clusters: Individual: M5, Globular Clusters: Individual: M80, X-Rays: Stars
Scientific paper
We have detected the cataclysmic variable V101 in M5 with the ROSAT HRI detector. The X-ray luminosity is at the high end of the distribution for known cataclysmic variables in the galactic disc. The ratio of X-ray to optical flux indicates that V101 is a dwarf nova. The failure to detect X-rays from the core indicates that the cluster core contains few cataclysmic variables. We also detect an X-ray source in the core of M80, and argue that it is probably not the counterpart of the old nova T Sco.
Charles Phil A.
Hakala P. J.
Johnston Helen M.
Verbunt Frank
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