SPITZER OBSERVATIONS OF BLACK HOLE LOW-MASS X-RAY BINARIES: ASSESSING THE NON-STELLAR INFRARED COMPONENT
SPITZER OBSERVATIONS OF BLACK HOLE LOW-MASS X-RAY BINARIES: ASSESSING THE NON-STELLAR INFRARED COMPONENT
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DOI：
10.1088/0004-637x/718/1/1
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发表时间：
2010-07
期刊：
影响因子：
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通讯作者：
D. Gelino;C. Gelino;T. Harrison
中科院分区：
文献类型：
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作者：
D. Gelino;C. Gelino;T. Harrison
我们将地面光学和近红外数据与斯皮策空间望远镜的中红外数据结合在一起，获得了五个黑洞(BH)软X射线瞬变(SXT)的中红外数据，以确定来自副星以外来源的近红外和中红外辐射水平。来自吸积盘、环绕双星尘埃和/或喷流的中红外辐射可能会作为近红外污染源，从而稀释次星的椭球变化，并影响确定的BH质量估计。根据五个SXT和原型V616MON的光学到中红外光谱能量分布模拟，我们在一半的系统中探测到中红外过剩，并提出这些系统探测到的过剩来自非热同步喷流而不是外双星尘埃盘。
We have combined ground-based optical and near-infrared data with Spitzer Space Telescope mid-infrared data for five black hole (BH) soft X-ray transients (SXTs) in order to determine the levels of near- and mid-infrared emission from sources other than the secondary star. Mid-infrared emission from an accretion disk, circumbinary dust, and/or a jet could act as sources of near-infrared contamination, thereby diluting ellipsoidal variations of the secondary star and affecting determined BH mass estimates. Based on optical to mid-infrared spectral energy distribution modeling of the five SXTs along with the prototype, V616 Mon, we detected mid-infrared excesses in half of the systems, and suggest that the excesses detected from these systems arise from non-thermal synchrotron jets rather than circumbinary dust disks.