HD306414: optical counterpart to the peculiar X-ray transient IGR J11215-5952

Negueruela, I.; Lorenzo, J.; Herrero, A. and Norton, A.J. (2010). HD306414: optical counterpart to the peculiar X-ray transient IGR J11215-5952. In: Binaries - Key to Comprehension of the Universe, 8-12 Jun 2009, Brno, Czech Republic..

URL: http://astro.physics.muni.cz/binkey/

Abstract

We present high-resolution spectroscopy of HD 306414, optical counterpart to the hard X-ray transient IGR J11215−5952, an object belonging to the class of Supergiant Fast X-ray Transients. We derive a spectral type B0.5 Ia for HD 306414 and determine its stellar parameters from an atmosphere model fit to the spectrum. Our data, taken around the time of the February 2007 X-ray outburst, show large variations in the shape of the Hα emission feature and the radial velocities of metallic lines about the time of the X-ray emission.

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• Item ORO ID
• 28645
• Item Type
• Conference or Workshop Item
• Extra Information
• Published as 'HD 306414: Optical Counterpart to the Peculiar X-ray Transient IGR J11215-5952' in 'Binaries, Key to Comprehension of the Universe: Proceedings of a Conference held at Brno, Czech Republic, 8-12 June 2009', edited by Andrej Prsa and Miloslav Zejda, Astonomical Society of the Pacific Conference Series, vol.435, p.407-408 (ISBN 978-1-58381-750-6)
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © Astronomical Society of the Pacific
• Depositing User
• Andrew Norton