A radio jet from the optical and x-ray bright stellar tidal disruption flare ASASSN-14li

被引：162

作者：

van Velzen, S. ^{[1
]}

Anderson, G. E. ^{[2
,3
]}

Stone, N. C. ^{[4
]}

Fraser, M. ^{[5
]}

Wevers, T. ^{[6
]}

Metzger, B. D.

Jonker, P. G. ^{[6
,7
]}

van der Horst, A. J. ^{[8
]}

Staley, T. D. ^{[2
]}

Mendez, A. J. ^{[1
]}

Miller-Jones, J. C. A. ^{[3
]}

Hodgkin, S. T. ^{[5
]}

Campbell, H. C. ^{[5
]}

Fender, R. P. ^{[2
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[2] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[3] Curtin Univ, Internat Ctr Radio Astron Res, Perth, WA 6845, Australia

[4] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[5] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[6] Radboud Univ Nijmegen, Dept Astrophys, NL-6525 AJ Nijmegen, Netherlands

[7] SRON Netherlands Inst Space Res, SRON, NL-3584 CA Utrecht, Netherlands

[8] George Washington Univ, Dept Phys, Washington, DC 20052 USA

来源：

SCIENCE | 2016年 / 351卷 / 6268期

基金：

欧洲研究理事会; 澳大利亚研究理事会;

关键词：

MASSIVE BLACK-HOLE; STAR; OUTBURST; TRANSIENTS; NUCLEUS; FLOWS; CORE;

D O I：

10.1126/science.aad1182

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The tidal disruption of a star by a supermassive black hole leads to a short-lived thermal flare. Despite extensive searches, radio follow-up observations of known thermal stellar tidal disruption flares (TDFs) have not yet produced a conclusive detection. We present a detection of variable radio emission from a thermal TDF, which we interpret as originating from a newly launched jet. The multiwavelength properties of the source present a natural analogy with accretion-state changes of stellar mass black holes, which suggests that all TDFs could be accompanied by a jet. In the rest frame of the TDF, our radio observations are an order of magnitude more sensitive than nearly all previous upper limits, explaining how these jets, if common, could thus far have escaped detection.

引用

页码：62 / 65

页数：4

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