Non-thermal processes in the cluster of galaxies Abell 3376

We model the high-energy emission that results from the interaction of relativistic particles with photons and matter in the cluster of galaxies Abell 3376. The presence of relativistic particles is inferred from the recently found radio relics in this cluster, being one of the most prominent exampl...

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Detalles Bibliográficos
Autores principales: Araudo, Anabella Teresa, Cora, Sofía Alejandra, Romero, Gustavo Esteban
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Astronómicas
Galaxies: clusters: individual: Abell 3376
Gamma-rays: theory
Radiation mechanisms: non-thermal
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84231
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84231
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: clusters: individual: Abell 3376
Gamma-rays: theory
Radiation mechanisms: non-thermal
spellingShingle Ciencias Astronómicas
Galaxies: clusters: individual: Abell 3376
Gamma-rays: theory
Radiation mechanisms: non-thermal
Araudo, Anabella Teresa
Cora, Sofía Alejandra
Romero, Gustavo Esteban
Non-thermal processes in the cluster of galaxies Abell 3376
topic_facet Ciencias Astronómicas
Galaxies: clusters: individual: Abell 3376
Gamma-rays: theory
Radiation mechanisms: non-thermal
description We model the high-energy emission that results from the interaction of relativistic particles with photons and matter in the cluster of galaxies Abell 3376. The presence of relativistic particles is inferred from the recently found radio relics in this cluster, being one of the most prominent examples of double opposite, giant ring-like radio structures. Assuming that diffusive shock acceleration takes place in the cluster regions where radio relics are observed, we calculate the spectral energy distribution resulting from the most relevant non-thermal processes, which are synchrotron radiation, inverse-Compton scattering, relativistic Bremsstrahlung and inelastic proton-proton collisions. In the context of our model, the major radiative component at high energies is inverse-Compton scattering, which could reach luminosities L ∼ 9 × 10<SUP>41</SUP> erg s<SUP>-1</SUP> in the energy range between ∼1 MeV and 10 TeV. Hadronic interactions would yield a minor contribution to the overall non-thermal emission, but would dominate at ultrahigh energies. The cluster Abell 3376 might be detectable at gamma-rays by HESS, GLAST satellite and future planned Cherenkov arrays.
format Articulo
Articulo
author Araudo, Anabella Teresa
Cora, Sofía Alejandra
Romero, Gustavo Esteban
author_facet Araudo, Anabella Teresa
Cora, Sofía Alejandra
Romero, Gustavo Esteban
author_sort Araudo, Anabella Teresa
title Non-thermal processes in the cluster of galaxies Abell 3376
title_short Non-thermal processes in the cluster of galaxies Abell 3376
title_full Non-thermal processes in the cluster of galaxies Abell 3376
title_fullStr Non-thermal processes in the cluster of galaxies Abell 3376
title_full_unstemmed Non-thermal processes in the cluster of galaxies Abell 3376
title_sort non-thermal processes in the cluster of galaxies abell 3376
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/84231
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AT corasofiaalejandra nonthermalprocessesintheclusterofgalaxiesabell3376
AT romerogustavoesteban nonthermalprocessesintheclusterofgalaxiesabell3376
bdutipo_str Repositorios
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