A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Shock Corrugation to the Rescue of the Internal Shock Model in Microquasars: The Single-scale Magnetohydrodynamic View
Tekijät: Pjanka Patryk, Demidem Camilia, Veledina Alexandra
Kustantaja: IOP Publishing Ltd
Julkaisuvuosi: 2023
Journal: Astrophysical Journal
Tietokannassa oleva lehden nimi: ASTROPHYSICAL JOURNAL
Lehden akronyymi: ASTROPHYS J
Artikkelin numero: 57
Vuosikerta: 947
Numero: 2
Sivujen määrä: 13
ISSN: 0004-637X
DOI: https://doi.org/10.3847/1538-4357/acbf35
Verkko-osoite: https://iopscience.iop.org/article/10.3847/1538-4357/acbf35
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/179458713
Questions regarding the energy dissipation in astrophysical jets remain open to date, despite numerous attempts to limit the diversity of the models. Some of the most popular models assume that energy is transferred to particles via internal shocks, which develop as a consequence of the nonuniform velocity of the jet matter. In this context, we study the structure and energy deposition of colliding plasma shells, focusing our attention on the case of initially inhomogeneous shells. This leads to the formation of distorted (corrugated) shock fronts-a setup that has recently been shown to revive particle acceleration in relativistic magnetized perpendicular shocks. Our study shows that the radiative power of the far downstream of nonrelativistic magnetized perpendicular shocks is moderately enhanced with respect to the flat-shock cases. Based on the decay rate of the downstream magnetic field, we make predictions for multiwavelength polarization properties.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
