Evidence for non-thermal X-ray emission from the double Wolf-Rayet colliding-wind binary Apep

[Context] Massive colliding-wind binaries (CWBs) can be non-thermal sources. The emission produced in their wind-collision region (WCR) encodes information of both the shock properties and the relativistic electrons accelerated in them. The recently discovered system Apep, a unique massive system ho...

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Detalles Bibliográficos
Autores: Palacio, Santiago del, García, F., De Becker, M., Altamirano, Diego, Bosch-Ramon, Valentí, Benaglia, Paula, Marcote, Benito, Romero, Gustavo E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/336623
Acceso en línea:http://hdl.handle.net/10261/336623
Access Level:acceso abierto
Palabra clave:Stars: Wolf-Rayet
Stars: winds
Outflows
Radiation mechanisms: non-thermal
Acceleration of particles
X-rays: stars
Descripción
Sumario:[Context] Massive colliding-wind binaries (CWBs) can be non-thermal sources. The emission produced in their wind-collision region (WCR) encodes information of both the shock properties and the relativistic electrons accelerated in them. The recently discovered system Apep, a unique massive system hosting two Wolf-Rayet stars, is the most powerful synchrotron radio emitter among the known CWBs. It is an exciting candidate in which to investigate the non-thermal processes associated with stellar wind shocks.