Gamma-ray emission from massive stars interacting with active galactic nuclei jets

Dense populations of stars surround the nuclear regions of galaxies. In active galactic nuclei, these stars can interact with the relativistic jets launched by the supermassive black hole. In this work, we study the interaction of early-type stars with relativistic jets in active galactic nuclei. A...

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Detalles Bibliográficos
Autores principales: Araudo, Anabella Teresa, Bosch Ramon, V., Romero, Gustavo Esteban
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Astronómicas
Galaxies:active
Gamma-rays:Theory
Radiation mechanisms:Non-thermal
Stars:Early-type
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85185
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85185
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
Galaxies:active
Gamma-rays:Theory
Radiation mechanisms:Non-thermal
Stars:Early-type
spellingShingle Ciencias Astronómicas
Galaxies:active
Gamma-rays:Theory
Radiation mechanisms:Non-thermal
Stars:Early-type
Araudo, Anabella Teresa
Bosch Ramon, V.
Romero, Gustavo Esteban
Gamma-ray emission from massive stars interacting with active galactic nuclei jets
topic_facet Ciencias Astronómicas
Galaxies:active
Gamma-rays:Theory
Radiation mechanisms:Non-thermal
Stars:Early-type
description Dense populations of stars surround the nuclear regions of galaxies. In active galactic nuclei, these stars can interact with the relativistic jets launched by the supermassive black hole. In this work, we study the interaction of early-type stars with relativistic jets in active galactic nuclei. A bow-shaped double-shock structure is formed as a consequence of the interaction of the jet and the stellar wind of each early-type star. Particles can be accelerated up to relativistic energies in these shocks and emit high-energy radiation. We compute, considering different stellar densities of the galactic core, the gamma-ray emission produced by nonthermal radiative processes. This radiation may be significant in some cases, and its detection might yield valuable information on the properties of the stellar population in the galaxy nucleus, as well as on the relativistic jet. This emission is expected to be particularly relevant for nearby non-blazar sources.
format Articulo
Articulo
author Araudo, Anabella Teresa
Bosch Ramon, V.
Romero, Gustavo Esteban
author_facet Araudo, Anabella Teresa
Bosch Ramon, V.
Romero, Gustavo Esteban
author_sort Araudo, Anabella Teresa
title Gamma-ray emission from massive stars interacting with active galactic nuclei jets
title_short Gamma-ray emission from massive stars interacting with active galactic nuclei jets
title_full Gamma-ray emission from massive stars interacting with active galactic nuclei jets
title_fullStr Gamma-ray emission from massive stars interacting with active galactic nuclei jets
title_full_unstemmed Gamma-ray emission from massive stars interacting with active galactic nuclei jets
title_sort gamma-ray emission from massive stars interacting with active galactic nuclei jets
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85185
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AT boschramonv gammarayemissionfrommassivestarsinteractingwithactivegalacticnucleijets
AT romerogustavoesteban gammarayemissionfrommassivestarsinteractingwithactivegalacticnucleijets
bdutipo_str Repositorios
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