Negueruela, I.; Reig, P. and Clark, J. S.
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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|
|Funders:||European Union Training and Mobility of Researchers Network [grant number ERBFMRX/CT98/0195]|
|Keywords:||stars: individual, 1WGA J1958.2+3232; stars: binaries, close; stars: novae, cataclysmic variables; book reviews; X-rays: stars|
|Academic Unit/Department:||Science > Physical Sciences|
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Astrid Peterkin|
|Date Deposited:||23 Mar 2009 13:40|
|Last Modified:||12 Feb 2012 20:34|
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