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Scientific Potential of MeV Polarimetry for Relativistic Jets

Zhang, Haocheng

Proceedings of the International Astronomical Union, 2022-12, Vol.17 (S375), p.76-85 [Periódico revisado por pares]

Cambridge, UK: Cambridge University Press

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  • Título:
    Scientific Potential of MeV Polarimetry for Relativistic Jets
  • Autor: Zhang, Haocheng
  • Assuntos: Astronomy ; Contributed Paper ; Cosmic rays ; Evolution ; Gamma ray astronomy ; Gamma ray bursts ; Jets ; Magnetic fields ; Neutrinos ; Neutrons ; Particle acceleration ; Polarimeters ; Polarimetry ; Radiation ; Relativistic effects ; Stellar magnetic fields ; Stellar mass ; Supermassive black holes ; X ray imagery ; X-ray astronomy
  • É parte de: Proceedings of the International Astronomical Union, 2022-12, Vol.17 (S375), p.76-85
  • Descrição: Relativistic jets from supermassive black holes or stellar mass black holes are among the most powerful astrophysical phenomena. Magnetic field plays an important role in the jet launching and propagation, as well as particle acceleration and radiation. Polarimetry is the only way to observe the magnetic field evolution. The recent launch of the Imaging X-ray Polarimetry Explorer (IXPE) has opened up the X-ray polarization window, which has revealed very interesting phenomena for relativistic jets. However, the field of MeV gamma-ray polarimetry remains largely unexplored. This paper aims to summarize key scientific potentials for MeV polarimetry for blazars and gamma-ray bursts (GRBs) from recent theoretical modeling. These predictions, which are closely related to the cosmic ray acceleration, neutrino production, radiation mechanism, and the jet evolution, can be examined by future MeV polarimeters, such as the Compton Spectrometer and Imager (COSI), the LargE Area burst Polarimeter (LEAP), and the All-sky Medium-Energy Gamma-ray Observatory eXplorer (AMEGO-X).
  • Editor: Cambridge, UK: Cambridge University Press
  • Idioma: Inglês
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