On the influence of a hybrid thermal-non-thermal distribution in the internal shocks model for blazars
NAGIOS: RODERIC FUNCIONANDO

On the influence of a hybrid thermal-non-thermal distribution in the internal shocks model for blazars

DSpace Repository

On the influence of a hybrid thermal-non-thermal distribution in the internal shocks model for blazars

Show simple item record

dc.contributor.author Rueda-Becerril, J. M.
dc.contributor.author Mimica, Petar
dc.contributor.author Aloy Toras, Miguel Angel
dc.date.accessioned 2017-05-03T14:27:00Z
dc.date.available 2017-05-03T14:27:00Z
dc.date.issued 2017
dc.identifier.uri http://hdl.handle.net/10550/58345
dc.description.abstract Internal shocks occurring in blazars may accelerate both thermal and non-thermal electrons. While the non-thermal tail fills the higher end of the electron energy distribution (EED), thermal electrons populate the lowest energies of the shock-accelerated particles. In this paper, we examine the consequences that such a hybrid (thermal-non-thermal) EED has on the spectrum of blazars. Since the thermal component of the EED may extend to very low energies, the synchrotron emission of ultrarelativistic electrons may not be sufficiently accurate to compute blazar spectra. Thus, we replace the standard synchrotron process by the more general magneto-bremsstrahlung (MBS) mechanism encompassing the discrete emission of harmonics in the cyclotron regime, the transition from the discrete to continuum and the continuum emission in the synchrotron realm. In the γ-ray band, an EED of mostly thermal particles displays significant differences with respect to the one dominated by non-thermal particles. A thermally dominated EED produces a synchrotron self-Compton (SSC) peak extending only up to a few MeV, and the valley separating the MBS and the SSC peaks is much deeper than if the EED is dominated by non-thermal particles. The combination of these effects modifies the Compton dominance of a blazar, suggesting that the vertical scatter in the distribution of FSRQs and BL Lacs in the peak synchrotron frequency-Compton dominance parameter space could be attributed to different proportions of thermal/non-thermal particles in the EED of blazars.
dc.language.iso eng
dc.relation.ispartof Monthly Notices of the Royal Astronomical Society, 2017, vol. 468, num. 1, p. 1169-1182
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Rueda-Becerril, J. M. Mimica, Petar Aloy Toras, Miguel Angel 2017 On the influence of a hybrid thermal-non-thermal distribution in the internal shocks model for blazars Monthly Notices of the Royal Astronomical Society 468 1 1169 1182
dc.subject Ones de xoc
dc.subject Astrofísica
dc.title On the influence of a hybrid thermal-non-thermal distribution in the internal shocks model for blazars
dc.type info:eu-repo/semantics/article
dc.date.updated 2017-05-03T14:27:01Z
dc.identifier.doi https://doi.org/10.1093/mnras/stx476
dc.identifier.idgrec 117155

View       (1.753Mb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics