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arXiv 1005.0099astro-ph.HE
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多波长观测揭示了我们银河系最模糊的高能量源

Multi-wavelength observations revealing the most obscured high energy sources of our Galaxy

S. Chaty

摘要:

INTEGRAL卫星揭示了一种新型的高能双星系统。这些来源正在通过多波长光学、近红外和中红外观测的手段被揭示出来。在这些来源中,出现了两种不同的类别:第一种是由内在模糊的高能量来源组成,其中IGR J16318-4848似乎是最极端的例子。第二个是所谓的超巨星快速X射线瞬变,IGR J17544-2619是原型。我们首先在这里给出一个一般性的介绍INTEGRAL源,然后报告的多波长光学到中红外观测的样品组成的21个INTEGRAL源。我们表明,在模糊源的情况下,我们的观察表明存在的吸收材料(灰尘和/或冷气体)encluding整个二元系统。最后,我们讨论了这两种不同类型的源的性质,在高能量二元系统的背景下,并给出了所有这些不同类型的高能量源的统一的方案,基于它们的高能量属性。

英文摘要:

A new type of high-energy binary system has been revealed by the INTEGRAL satellite. These sources are being unveiled by means of multi-wavelength optical, near- and mid-infrared observations. Among these sources, two distinct classes are appearing: the first one is constituted of intrinsically obscured high-energy sources, of which IGR J16318-4848 seems to be the most extreme example. The second one is populated by the so-called supergiant fast X-ray transients, with IGR J17544-2619 being the archetype. We first give here a general introduction on INTEGRAL sources, before reporting on multi-wavelength optical to mid-infrared observations of a sample constituted of 21 INTEGRAL sources. We show that in the case of obscured sources our observations suggest the presence of absorbing material (dust and/or cold gas) enshrouding the whole binary system. We finally discuss the nature of these two different types of sources, in the context of high energy binary systems, and give a scenario of unification of all these different types of high energy sources, based on their high energy properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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