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Paper: Invisible Plasma Content in Blazars?—The Case of Markarian 421
Volume: 402, Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies
Page: 303
Authors: Kino, M.; Takahara, M.
Abstract: The invisible plasma content in blazar jets, such as protons and/or thermal electron-positron (e±) pairs, is explored through combined arguments of dynamical and radiative processes. By comparing the physical quantities required by the internal shock model with those obtained through the observed radio-to-gamma-ray spectra for Mrk 421, we infer a copious amount of invisible plasma in the jet. We speculate that the blazar sequence could arise from variations of total amount and/or blending ratio of e± pair and electron-proton plasma.
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