The nature of 1WGA J1958.2+3232: a new intermediate polar

Negueruela, I.; Reig, P. and Clark, J. S. (2000). The nature of 1WGA J1958.2+3232: a new intermediate polar. Astronomy & Astrophysics, 354(1) L29-L32.

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Abstract

We present low and intermediate resolution spectroscopy of the optical counterpart to the recently discovered pulsating X-ray source 1WGA J1958.2+3232. The presence of strong HI , HeI and HeII emission lines together with the absence of absorption features rules out the possibility that the object is a massive star, as had recently been suggested. The observed X-ray and optical characteristics are consistent with the object being an intermediate polar. The double-peaked structure of the emission lines indicates that an accretion disc is present.

Item Type:

Journal Article

2000 European Southern Observatory (ESO)

ISSN:

1432-0746

Project Funding Details: