HD 306414, the optical counterpart to the Peculiar X-Ray Transient IGR J11215-5952

Lorenzo, Javier; Negueruela, Ignacio and Norton, Andrew J . (2010). HD 306414, the optical counterpart to the Peculiar X-Ray Transient IGR J11215-5952. In: High Energy Phenomena in Massive Stars, 2-5 Feb 2009, Jaén, Spain.

Abstract

HD 306414 is the optical counterpart to the transient X-ray source IGR J11215–5952, characterised by short flares occurring every 165 days. In order to improve our understanding of this source, we obtained high-resolution spectroscopy of HD 306414 around the time of the February 2007 X-ray outburst. Large variations in the shape of the H? emission feature and the radial velocities of metallic lines are seen around the time of the X-ray emission.

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