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一个被尘埃覆盖的潮干扰事件,在一个星系合并中解决了无线电喷射
S Mattila1,2, M Pérez-Torres3,4, A Efstathiou5
1Tuorla Observatory, Department of Physics and Astronomy, FI-20014 University of Turku, Finland. sepmat@utu.fi torres@iaa.es.
概括
一颗被超大质量黑洞撕裂的恒星造成了潮破坏事件 (TDE). 它的大部分能量被尘埃再处理, 解释了它的红外光和缺乏X射线或光学光.
科学领域:
- 天体物理学
- 观测天文学
背景情况:
- 潮破坏事件 (TDE) 是一种涉及超大质量黑洞 (SMBH) 摧毁恒星的天文现象.
- 观察到的TDE通常与理论上的亮度预测不符,这表明缺少能量再处理机制.
研究的目的:
- 在Arp 299星系的合并中调查一个不寻常的短暂来源.
- 了解TDE的排放机制和喷气动力学.
主要方法:
- 对Arp 299西部核的多波长观测.
- 红外和无线电辐射的分析.
- 进行X射线和光学数据的比较.
主要成果:
- 在红外和无线电波长中发射的>1.5 × 10^52 erg的短暂源.
- 在光学和X射线频段中可以忽略的亮度.
- 有证据表明TDE排放的尘埃再处理.
- 检测到一个扩张和减速的无线电喷气.
结论:
- 观察到的短暂物质很可能是被尘埃覆盖和重新处理的TDE.
- 灰尘和气体再处理可以调和TDE亮度差异.
- 无线电观测揭示了SMBH周围喷气形成和演变的见解.
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