The nature of the infrared counterpart of IGR J19140+0951

Abstract

The INTEGRAL observatory has been (re-)discovering new X-ray sources since the beginning of nominal operations in early 2003. These sources include X-ray binaries, Active Galactic Nuclei, cataclysmic variables, etc. Amongst the X-ray binaries, the true nature of many of these sources has remained largely elusive, though they seem to make up a population of highly absorbed high-mass X-ray binaries. One of these new sources, IGR J19140+0951, was serendipitously discovered on 2003 Mar 6 during an observation of the galactic microquasar GRS 1915+105. We observed IGR J19140+0951 with UKIRT in order to identify the infrared counterpart. Here we present the H- and K-band spectra. We determined that the companion is a B0.5-type bright supergiant in a wind-fed system, at a distance $\la$ 5 kpc.

5 pages, 2 figures, accepted for publication in MNRAS

References in corpus (2)

• The 3rd IBIS/ISGRI soft gamma-ray survey catalog
• A description of sources detected by INTEGRAL during the first 4 years of observations

Cited by in corpus (12)

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• Unveiling the nature of INTEGRAL objects through optical spectroscopy. VI. A multi-observatory identification campaign
• Advances in Understanding High-Mass X-ray Binaries with INTEGRAL and Future Directions
• Unveiling the nature of INTEGRAL objects through optical spectroscopy. VII. Identification of 20 Galactic and extragalactic hard X-ray sources
• Unveiling the nature of six HMXBs through IR spectroscopy
• Peering through the stellar wind of IGR J19140+0951 with simultaneous INTEGRAL/RXTE observations
• An XMM-Newton and NuSTAR study of IGR J18214-1318: a non-pulsating high-mass X-ray binary with a neutron star
• The Galactic high mass X-ray binary population with Fermi -LAT
• Broadband Suzaku observations of IGR J16207-5129
• The Black Hole Candidate Swift J1728.9$-$3613 and the Supernova Remnant G351.9$-$0.9