Optical and near-infrared observations of new INTEGRAL galactic sources

Details Optical and near-infrared observations of new INTEGRAL galactic sources Optical and near-infrared observations of new INTEGRAL galactic sources

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006adspr..38.1365f&link_type=abstract

Advances in Space Research, Volume 38, Issue 7, p. 1365-1368.

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Scientific paper

The INTEGRAL satellite has discovered many sources, the nature of most being still unknown. Only a multi-wavelength approach, including optical and near-infrared observations, may allow to constrain their nature. Several of these sources, apparently located in the Norma arm, share common X-ray properties, in particular a huge intrinsic absorption, probably by cold matter. The best studied source is IGR J16318-4848, for which we summarize here our optical/near-infrared observations, and for which we propose an identification as a High mass X-ray binary, the massive component being an sgB[e] star. There are indications that other sources in the Norma arm are binary systems with massive and rare stars, surrounded by complex envelopes or cocoons.

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