Evento
Non-thermal radiation from a runaway massive star
Romero, Gustavo Esteban
; Benaglia, Paula
; Peri, Cintia Soledad
; Martí, Josep; Araudo, Anabella Teresa
Tipo del evento:
Congreso
Nombre del evento:
39th Liège Astrophysical Colloquium
Fecha del evento:
12/07/2010
Institución Organizadora:
Université de Liegue;
Título de la revista:
Bulletin de la Société Royale des Sciences de Liège
Editorial:
Societé Royale des Sciences de Liege
ISSN:
0037-9565
e-ISSN:
1783-5720
Idioma:
Inglés
Clasificación temática:
Resumen
We present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that the reverse shock in the stellar wind might accelerate charged particles up to relativistic energies. Non-thermal radio emission of synchrotron origin has been detected, confirming the hypothesis. We have then modeled the system and we predict a spectral energy distribution that extends up to γ-rays. Under some simplifying assumptions, we find that the intensity at high energies is too low to be detected by current instruments, but the future Cherenkov Telescope Array might detect the source.
Palabras clave:
ASTROPHYSICS
,
HIGH-ENERGY PHENOMENA
Archivos asociados
Licencia
Identificadores
Colecciones
Eventos(IAR)
Eventos de INST.ARG.DE RADIOASTRONOMIA (I)
Eventos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Non-thermal radiation from a runaway massive star; 39th Liège Astrophysical Colloquium; Liege; Bélgica; 2010; 420-424
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