Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot
Abstract
The Telescope Array (TA) collaboration has determined a hotspot of 19 ultrahigh-energy cosmic rays (UHECRs). Using a universal model with one source and energy-dependent magnetic deflections, we show that the distribution of the TA hotspot events is consistent with a single source hypothesis, although multiple sources cannot be ruled out. The chance probability of this distribution arising from a homogeneous distribution is 0.2%. We describe here a Monte Carlo Bayesian (MCB) inference approach, which can be used to derive parameters of the magnetic fields as well as the source coordinates, and we apply this method to the TA hotspot data, inferring the location of the likely source. We discuss possible applications of the same approach to future data.
- Authors:
-
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy; Chinese Academy of Sciences (CAS), Nanjing (China). Key Lab. of Dark Matter and Space Astronomy and Purple Mountain Observatory
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy; Univ. of Tokyo (Japan). Kavli Institute for the Physics and Mathematics of the Universe (WPI)
- RIKEN, Saitama (Japan). Astrophysical Big Bang Lab.
- Univ. of Alabama, Huntsville, AL (United States). Center for Space Plasma and Aeronomic Research (CSPAR); Instituto de Astrofisica de Andaluca (IAA-CSIC), Granada (Spain)
- Max Planck Inst. fuer Kernphysik, Heidelberg (Germany); Chinese Academy of Sciences (CAS), Nanjing (China). Key Lab. of Dark Matter and Space Astronomy and Purple Mountain Observatory
- Chinese Academy of Sciences (CAS), Nanjing (China). Key Lab. of Dark Matter and Space Astronomy and Purple Mountain Observatory
- Publication Date:
- Research Org.:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Natural Science Foundation of China (NSFC)
- OSTI Identifier:
- 1609078
- Alternate Identifier(s):
- OSTI ID: 1238400
- Grant/Contract Number:
- SC0009937
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 4; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
He, Hao-Ning, Kusenko, Alexander, Nagataki, Shigehiro, Zhang, Bin-Bin, Yang, Rui-Zhi, and Fan, Yi-Zhong. Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot. United States: N. p., 2016.
Web. doi:10.1103/PhysRevD.93.043011.
He, Hao-Ning, Kusenko, Alexander, Nagataki, Shigehiro, Zhang, Bin-Bin, Yang, Rui-Zhi, & Fan, Yi-Zhong. Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot. United States. https://doi.org/10.1103/PhysRevD.93.043011
He, Hao-Ning, Kusenko, Alexander, Nagataki, Shigehiro, Zhang, Bin-Bin, Yang, Rui-Zhi, and Fan, Yi-Zhong. Thu .
"Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot". United States. https://doi.org/10.1103/PhysRevD.93.043011. https://www.osti.gov/servlets/purl/1609078.
@article{osti_1609078,
title = {Monte Carlo Bayesian search for the plausible source of the Telescope Array hotspot},
author = {He, Hao-Ning and Kusenko, Alexander and Nagataki, Shigehiro and Zhang, Bin-Bin and Yang, Rui-Zhi and Fan, Yi-Zhong},
abstractNote = {The Telescope Array (TA) collaboration has determined a hotspot of 19 ultrahigh-energy cosmic rays (UHECRs). Using a universal model with one source and energy-dependent magnetic deflections, we show that the distribution of the TA hotspot events is consistent with a single source hypothesis, although multiple sources cannot be ruled out. The chance probability of this distribution arising from a homogeneous distribution is 0.2%. We describe here a Monte Carlo Bayesian (MCB) inference approach, which can be used to derive parameters of the magnetic fields as well as the source coordinates, and we apply this method to the TA hotspot data, inferring the location of the likely source. We discuss possible applications of the same approach to future data.},
doi = {10.1103/PhysRevD.93.043011},
journal = {Physical Review D},
number = 4,
volume = 93,
place = {United States},
year = {Thu Feb 18 00:00:00 EST 2016},
month = {Thu Feb 18 00:00:00 EST 2016}
}
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