A transient radio source consistent with a merger-triggered core collapse supernova.

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Bibliographic Details
Title:	A transient radio source consistent with a merger-triggered core collapse supernova.
Authors:	Dong, D. Z., Hallinan, G., Nakar, E., Ho, A. Y. Q., Hughes, A. K., Hotokezaka, K., Myers, S. T., De, K., Mooley, K. P., Ravi, V., Horesh, A., Kasliwal, M. M., Kulkarni, S. R.
Source:	Science (pre-March 2025). 9/3/2021, Vol. 373 Issue 6559, p1125-1129. 5p. 4 Graphs.
Subjects:	Radio sources (Astronomy), Supernovae, Exothermic reactions, Supergiant stars, Nuclear fuels, Stellar mergers, Very large array telescopes, Radio jets (Astrophysics)
Abstract:	A core collapse supernova occurs when exothermic fusion ceases in the core of a massive star, which is typically caused by exhaustion of nuclear fuel. Theory predicts that fusion could be interrupted earlier by merging of the star with a compact binary companion. We report a luminous radio transient, VT J121001+495647, found in the Very Large Array Sky Survey. The radio emission is consistent with supernova ejecta colliding with a dense shell of material, potentially ejected by binary interaction in the centuries before explosion. We associate the supernova with an archival x-ray transient, which implies that a relativistic jet was launched during the explosion. The combination of an early relativistic jet and late-time dense interaction is consistent with expectations for a merger-driven explosion. [ABSTRACT FROM AUTHOR]
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Database:	Psychology and Behavioral Sciences Collection

Description
Abstract:	A core collapse supernova occurs when exothermic fusion ceases in the core of a massive star, which is typically caused by exhaustion of nuclear fuel. Theory predicts that fusion could be interrupted earlier by merging of the star with a compact binary companion. We report a luminous radio transient, VT J121001+495647, found in the Very Large Array Sky Survey. The radio emission is consistent with supernova ejecta colliding with a dense shell of material, potentially ejected by binary interaction in the centuries before explosion. We associate the supernova with an archival x-ray transient, which implies that a relativistic jet was launched during the explosion. The combination of an early relativistic jet and late-time dense interaction is consistent with expectations for a merger-driven explosion. [ABSTRACT FROM AUTHOR]
ISSN:	00368075
DOI:	10.1126/science.abg6037