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

By I. Negueruela, P. Reig and J. S. Clark

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

Year: 2000
OAI identifier: oai:oro.open.ac.uk:15146
Provided by: Open Research Online

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