A Bayesian analysis of correlation between AGNs and ultra high energy cosmic rays detected by the Telescope Array Experiment

Wooram Cho; Youngjoon Kwon

doi:10.22323/1.301.0491

A Bayesian analysis of correlation between AGNs and ultra high energy cosmic rays detected by the Telescope Array Experiment

Wooram Cho, Youngjoon Kwon

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

Ultra high energy cosmic rays over 10¹⁹eV are thought to come from very powerful objects such as Active Galatic Nucleus(AGN). However, the number of AGNs and ultra high energy cosmic rays is not large enough to experimentally declare the correlation between them. We use Watson and Mortlock's Bayesian statistical method to compare the arrival direction data of large ground arrays such as the Telescope Array experiment with AGNs in the Veron-Cety and Veron (VCV) catalog. We also test the linearity using toy monte carlo simulation. In this presentation, we present the probability that the TA's cosmic rays come from AGNs.

Original language	English
Journal	Proceedings of Science
DOIs	https://doi.org/10.22323/1.301.0491
Publication status	Published - 2017
Event	35th International Cosmic Ray Conference, ICRC 2017 - Bexco, Busan, Korea, Republic of Duration: 2017 Jul 10 → 2017 Jul 20

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© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).

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abstract = "Ultra high energy cosmic rays over 1019eV are thought to come from very powerful objects such as Active Galatic Nucleus(AGN). However, the number of AGNs and ultra high energy cosmic rays is not large enough to experimentally declare the correlation between them. We use Watson and Mortlock's Bayesian statistical method to compare the arrival direction data of large ground arrays such as the Telescope Array experiment with AGNs in the Veron-Cety and Veron (VCV) catalog. We also test the linearity using toy monte carlo simulation. In this presentation, we present the probability that the TA's cosmic rays come from AGNs.",

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N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).

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N2 - Ultra high energy cosmic rays over 1019eV are thought to come from very powerful objects such as Active Galatic Nucleus(AGN). However, the number of AGNs and ultra high energy cosmic rays is not large enough to experimentally declare the correlation between them. We use Watson and Mortlock's Bayesian statistical method to compare the arrival direction data of large ground arrays such as the Telescope Array experiment with AGNs in the Veron-Cety and Veron (VCV) catalog. We also test the linearity using toy monte carlo simulation. In this presentation, we present the probability that the TA's cosmic rays come from AGNs.

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A Bayesian analysis of correlation between AGNs and ultra high energy cosmic rays detected by the Telescope Array Experiment

Abstract

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