[PCC2011] C2 , the SIMBAD biblio

2011A&A...526A..15P - Astronomy and Astrophysics, volume 526A, 15-15 (2011/2-1)

Unveiling the nature of IGR J16283-4838.

PELLIZZA L.J., CHATY S. and CHISARI N.E.

Abstract (from CDS):

One of the most striking discoveries of the INTEGRAL observatory is the existence of a previously unknown population of X-ray sources in the inner arms of the Galaxy. The investigations of the optical/NIR counterparts of some of them have provided evidence that they are highly absorbed high mass X-ray binaries hosting supergiants. We aim to identify the optical/NIR counterpart of one of the newly discovered INTEGRAL sources, IGR J16283-4838, and determine the nature of this system.We present optical and NIR observations of the field of IGR J16283-4838, and use the astrometry and photometry of the sources within it to identify its counterpart. We obtain its NIR spectrum, and its optical/NIR spectral energy distribution by means of broadband photometry. We search for the intrinsic polarization of its light, and its short and long-term photometric variability.We demonstrate that this source is a highly absorbed HMXB located beyond the Galactic center, and that it may be surrounded by a variable circumstellar medium.

Abstract Copyright:

Journal keyword(s): X-rays: binaries - X-rays: individual: IGR J16283-4838

Nomenclature: Fig. 1, Table 4: [PCC2011] CN (Nos C1-C3).

Simbad objects: 8

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