| Description |
Among the high-energy binary sources, a new type of sources has been recently discovered by the high-energy observatory INTEGRAL. They are constituted of intrinsically highly obscured supergiant High Mass X-ray Binaries, of which IGR J16318-4848, a compact object orbiting around a supergiant Be star, seems to be the archetype. These sources have been partly unveiled by means of multi-wavelength X-ray, optical, near- and mid-infrared observations. However the fundamental questions about these sources, namely their formation, their evolution, and the nature of their environment, are still unsolved. After the successful multi-wavelength observations that we have performed on these intriguing sources, we propose here to get Herschel/PACS photometric observations, in order to detect the presence and characterize the nature of absorbing material (dust and/or cold gas) enshrouding the whole binary systems. This study will allow us to get a better understanding of the formation and evolution of such rare and short-living high mass binary systems in our Galaxy. |
