RX J0744-52 - A probable new intermediate polar

Details RX J0744-52 - A probable new intermediate polar RX J0744-52 - A probable new intermediate polar

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.294..187r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 294, p. 187

Astronomy and Astrophysics

Astronomy

4

X Ray Astronomy, Cataclysmic Variables, X Ray Sources, Rosat Mission, H Alpha Line, Astronomical Spectroscopy

Scientific paper

We present optical and X-ray data of the cataclysmic variable RX 0744-52 discovered using ROSAT by Motch et al. High-resolution spectroscopy centered on the H-alpha line indicates a probable orbital period of 3.60 h. From its distance (obtained using polarimetry), its X-ray luminosity, its X-ray color, and its X-ray/UV + optical ratio, we suggest that RX 0744-52 is a new intermediate polar. The absence of a significant coherent modulation in the X-ray light curve suggests either that RX 0744-52 has a low inclination or that the rotational and magnetic axes must be closely aligned. This is consistent with its small radial velocity amplitude.

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