High-energy Neutrinos from Choked Gamma-Ray Bursts in Active Galactic Nucleus Accretion Disks

作者：Zhu, Jin-Ping^*; Wang, Kai; Zhang, Bing; Yang, Yuan-Pei; Yu, Yun-Wei; Gao, He

来源：ASTROPHYSICAL JOURNAL LETTERS, 2021, 911(2): L19.

DOI：10.3847/2041-8213/abf2c3

• NEUTRON-STAR
• LOW-LUMINOSITY
• BLACK-HOLE
• RELATIVISTIC JETS
• SUPERNOVA
• EVOLUTION
• EMISSION
• MERGER
• ACCELERATION
• PROPAGATION

Both long-duration gamma-ray bursts (LGRBs) from the core collapse of massive stars and short-duration GRBs (SGRBs) from mergers of a binary neutron star or a neutron star-black hole are expected to occur in the accretion disk of active galactic nuclei (AGNs). We show that GRB jets embedded in the migration traps of AGN disks are promised to be choked by the dense disk material. Efficient shock acceleration of cosmic rays at the reverse shock is expected, and high-energy neutrinos would be produced. We find that these sources can effectively produce detectable TeV-PeV neutrinos through p gamma interactions. From a choked LGRB jet with isotropic equivalent energy of 10(53) erg at 100 Mpc, one expects similar to 2(7) neutrino events detectable by IceCube (IceCube-Gen2). The contribution from choked LGRBs to the observed diffuse neutrino background depends on the unknown local event rate density of these GRBs in AGN disks. For example, if the local event rate density of choked LGRBs in an AGN disk is similar to 5% that of low-luminosity GRBs (similar to 10 Gpc(-3) yr(-1)), the neutrinos from these events would contribute to similar to 10% of the observed diffuse neutrino background. Choked SGRBs in AGN disks are potential sources for future joint electromagnetic, neutrino, and gravitational wave multimessenger observations.

• 单位
  北京大学; 云南大学; 华中科技大学