Production of gamma rays and neutrinos in the dark jets of the microquasar SS433

We study the spectral energy distribution of gamma rays and neutrinos in the precessing microquasar SS433 as a result of <i>pp</i> interactions within its dark jets. Gamma-ray absorption due to interactions with matter of the extended disc and of the star is found to be important, as wel...

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Autores principales: Reynoso, Matías M., Romero, Gustavo Esteban, Christiansen, Hugo Roland
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Astronómicas
Binaries: general
Gamma-rays: theory
Neutrinos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84165
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84165
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
Binaries: general
Gamma-rays: theory
Neutrinos
spellingShingle Ciencias Astronómicas
Binaries: general
Gamma-rays: theory
Neutrinos
Reynoso, Matías M.
Romero, Gustavo Esteban
Christiansen, Hugo Roland
Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
topic_facet Ciencias Astronómicas
Binaries: general
Gamma-rays: theory
Neutrinos
description We study the spectral energy distribution of gamma rays and neutrinos in the precessing microquasar SS433 as a result of <i>pp</i> interactions within its dark jets. Gamma-ray absorption due to interactions with matter of the extended disc and of the star is found to be important, as well as absorption caused by the ultraviolet and mid-infrared radiation from the equatorial envelopment. We analyse the range of precessional phases for which this attenuation is at a minimum and the chances for detection of a gamma-ray signal are enhanced. The power of relativistic protons in the jets, a free parameter of the model, is constrained by HEGRA data. This imposes limits on the gamma-ray fluxes to be detected with instruments such as GLAST, VERITAS and MAGIC II. A future detection of high-energy neutrinos with cubic kilometre telescopes such as IceCube would also yield important information about acceleration mechanisms that may take place in the dark jets. Overall, the determination of the ratio of gamma-ray to neutrino flux will result in a key observational tool to clarify the physics of heavy jets.
format Articulo
Articulo
author Reynoso, Matías M.
Romero, Gustavo Esteban
Christiansen, Hugo Roland
author_facet Reynoso, Matías M.
Romero, Gustavo Esteban
Christiansen, Hugo Roland
author_sort Reynoso, Matías M.
title Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
title_short Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
title_full Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
title_fullStr Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
title_full_unstemmed Production of gamma rays and neutrinos in the dark jets of the microquasar SS433
title_sort production of gamma rays and neutrinos in the dark jets of the microquasar ss433
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/84165
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AT romerogustavoesteban productionofgammaraysandneutrinosinthedarkjetsofthemicroquasarss433
AT christiansenhugoroland productionofgammaraysandneutrinosinthedarkjetsofthemicroquasarss433
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