Artículo
A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast
Fecha de publicación:
03/2020
Editorial:
Institute of Physics Publishing
Revista:
Astrophysical Journal Letters
ISSN:
2041-8205
e-ISSN:
2041-8213
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The Galactic center supermassive black hole, Sgr A, has experienced a strong, unprecedented flare in 2019 May when its near-infrared luminosity reached much brighter levels than ever measured. We argue that an explosive event of particle acceleration to nonthermal energies in the innermost parts of the accretion flow- A nonthermal bomb-explains the near-infrared light curve. We discuss potential mechanisms that could explain this event such as magnetic reconnection and relativistic turbulence acceleration. Multiwavelength monitoring of such superflares in radio, infrared, and X-rays should allow a concrete test of the nonthermal bomb model and put better constraints on the mechanism that triggered the bomb.
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Articulos(IAR)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Gutiérrez, Eduardo Mario; Nemmen, Rodrigo; Cafardo, Fabio; A Nonthermal Bomb Explains the Near-infrared Superflare of Sgr A&z.ast; Institute of Physics Publishing; Astrophysical Journal Letters; 891; 2; 3-2020; L36
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