{ "id": "1312.3458", "version": "v1", "published": "2013-12-12T12:06:09.000Z", "updated": "2013-12-12T12:06:09.000Z", "title": "Multiwavelength Probes of the Environs of Relativistic Shocks in Blazar Jets", "authors": [ "Matthew G. Baring", "Markus Boettcher", "Errol J. Summerlin" ], "comment": "14 pages, 2 figures, to appear in Proceedings of the Fourth Meeting on High Energy Phenomena in Relativistic Outflows, eds. F. M. Rieger et al. [International Journal of Modern Physics: Conference Series]", "categories": [ "astro-ph.HE" ], "abstract": "Diffusive shock acceleration (DSA) at relativistic shocks is likely to be an important acceleration mechanism in various astrophysical jet sources, including radio-loud AGN. An important recent development for blazar science is the ability of Fermi-LAT data to pin down the power-law index of the high energy portion of emission in these sources, and therefore also the index of the underlying non-thermal particle population. This diagnostic potential was not possible prior to Fermi launch, when gamma-ray information was dominated by the highly-absorbed TeV band. This paper highlights how multiwavelength spectra including X-ray band and Fermi data can be used to probe diffusive acceleration in relativistic, oblique, MHD shocks in blazar jets. The spectral index of the non-thermal particle distributions resulting from Monte Carlo simulations of DSA, and the fraction of thermal particles accelerated to non-thermal energies, depend sensitively on the particles' mean free path scale, and also on the magnetic field obliquity to the shock normal. We investigate self-consistently the radiative synchrotron/Compton signatures of the resulting thermal and non-thermal particle distributions. Important constraints on the frequency of particle scattering and the level of field turbulence are identified for the blazar AO 0235+164. The possible interpretation that turbulence levels decline with remoteness from jet shocks, and a significant role for non-gyroresonant diffusion, are discussed.", "revisions": [ { "version": "v1", "updated": "2013-12-12T12:06:09.000Z" } ], "analyses": { "subjects": [ "98.62.Nx", "98.54.Cm", "95.85.Pw", "97.80.Jp", "52.35.Ra", "52.35.Tc", "52.27.Ny" ], "keywords": [ "relativistic shocks", "blazar jets", "multiwavelength probes", "non-thermal particle distributions", "mean free path scale" ], "tags": [ "conference paper", "journal article" ], "publication": { "doi": "10.1142/S2010194514601677", "journal": "International Journal of Modern Physics Conference Series", "year": 2014, "month": "Mar", "volume": 28, "pages": 1460167 }, "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1268940, "adsabs": "2014IJMPS..2860167B" } } }