Title | Detectable MeV neutrinos from black hole neutrino-dominated accretion flows |
Authors | Liu, Tong Zhang, Bing Li, Ye Ma, Ren-Yi Xue, Li |
Affiliation | Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China. Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA. Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China. Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China. Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China. Liu, T (reprint author), Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA. |
Keywords | GAMMA-RAY BURSTS ACTIVE GALACTIC NUCLEI STAR-FORMATION RATE JET PRECESSION VERTICAL STRUCTURE CENTRAL ENGINE COOLED DISKS STELLAR-MASS LUMINOSITY MODELS |
Issue Date | 2016 |
Publisher | PHYSICAL REVIEW D |
Citation | PHYSICAL REVIEW D.2016,93(12). |
Abstract | Neutrino-dominated accretion flows (NDAFs) around rotating stellar-mass black holes (BHs) have been theorized as the central engine of relativistic jets launched in massive star core collapse events or compact star mergers. In this work, we calculate the electron neutrino/antineutrino spectra of NDAFs by fully taking into account the general relativistic effects, and investigate the effects of viewing angle, BH spin, and mass accretion rate on the results. We show that even though a typical NDAF has a neutrino luminosity lower than that of a typical supernova (SN), it can reach 10(50)-10(51) erg s(-1) peaking at similar to 10 MeV, making NDAFs potentially detectable with the upcoming sensitive MeV neutrino detectors if they are close enough to Earth. Based on the observed gamma-ray burst (GRB) event rate in the local universe and requiring that at least three neutrinos are detected to claim a detection, we estimate a detection rate up to similar to(0.10-0.25) per century for GRB-related NDAFs by the Hyper-Kamiokande (Hyper-K) detector if one neglects neutrino oscillation. If one assumes that all type Ib/c SNe have an engine-driven NDAF, the Hyper-K detection rate would be similar to(1-3) per century. By considering neutrino oscillations, the detection rate may decrease by a factor of 2-3. Detecting one such event would establish the observational evidence of NDAFs in the Universe. |
URI | http://hdl.handle.net/20.500.11897/492178 |
ISSN | 2470-0010 |
DOI | 10.1103/PhysRevD.93.123004 |
Indexed | SCI(E) |
Appears in Collections: | 物理学院 科维理天文与天体物理研究所 |