Non-thermal radiation from a runaway massive star

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...

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Detalles Bibliográficos
Autores principales: Romero, Gustavo Esteban, Benaglia, Paula, Peri, Cintia Soledad, Martí, Josep, Araudo, Anabella Teresa
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/99537
https://ri.conicet.gov.ar/11336/5210
http://arxiv.org/abs/1011.2773v1
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-99537
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
spellingShingle Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
Romero, Gustavo Esteban
Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
Non-thermal radiation from a runaway massive star
topic_facet Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
description 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 gamma-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.
format Articulo
Articulo
author Romero, Gustavo Esteban
Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
author_facet Romero, Gustavo Esteban
Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
author_sort Romero, Gustavo Esteban
title Non-thermal radiation from a runaway massive star
title_short Non-thermal radiation from a runaway massive star
title_full Non-thermal radiation from a runaway massive star
title_fullStr Non-thermal radiation from a runaway massive star
title_full_unstemmed Non-thermal radiation from a runaway massive star
title_sort non-thermal radiation from a runaway massive star
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/99537
https://ri.conicet.gov.ar/11336/5210
http://arxiv.org/abs/1011.2773v1
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