超越混淆极限：探测人马座A* 及其环境物理学的高角分辨率的必要性：LINC-NIRVANA（LBT）、GRAVITY（VLTI）和METIS（E-ELT）的机会
Beating the confusion limit: The necessity of high angular resolution for probing the physics of Sagittarius A* and its environment: Opportunities for LINC-NIRVANA (LBT), GRAVITY (VLTI) and and METIS (E-ELT)
摘要：
超大质量的400万太阳质量的黑洞（SMBH）SgrA* 显示出从毫米到X射线域的可变发射。对红外线曲线的详细分析使我们能够以统计的方式解决吸积现象。分析表明，近红外通量密度漂移主要由一个单一的状态幂律，与低状态的SgrA* 有限的混乱通过未解决的恒星背景。我们表明，对于8- 10米级的望远镜，沿视线的混合效应将导致持续约3-4年的0.5-1 mJy的人造致密恒星状物体。我们讨论了如何在VLTI的重力，LINC-NIRVANA在LBT和METIS在E-ELT的成像能力将有助于调查的SgrA* 的低变异状态。
英文摘要：
The super-massive 4 million solar mass black hole (SMBH) SgrA* shows variable emission from the millimeter to the X-ray domain. A detailed analysis of the infrared light curves allows us to address the accretion phenomenon in a statistical way. The analysis shows that the near-infrared flux density excursions are dominated by a single state power law, with the low states of SgrA* limited by confusion through the unresolved stellar background. We show that for 8-10m class telescopes blending effects along the line of sight will result in artificial compact star-like objects of 0.5-1 mJy that last for about 3-4 years. We discuss how the imaging capabilities of GRAVITY at the VLTI, LINC-NIRVANA at the LBT and METIS at the E-ELT will contribute to the investigation of the low variability states of SgrA*.
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