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A NORTHERN SKY SURVEY FOR POINT-LIKE SOURCES OF EeV NEUTRAL PARTICLES WITH THE TELESCOPE ARRAY EXPERIMENT

Title
A NORTHERN SKY SURVEY FOR POINT-LIKE SOURCES OF EeV NEUTRAL PARTICLES WITH THE TELESCOPE ARRAY EXPERIMENT
Authors
Mukai, K.Myers, I.Nagasawa, K.Nagataki, S.Nakamura, T.Nonaka, T.Nozato, A.Ogio, S.Ogura, J.Ohnishi, M.Ohoka, H.Oki, K.Okuda, T.Ono, M.Oshima, A.Ozawa, S.Park, I. H.Pshirkov, M. S.Rodriguez, D. C.Rubtsov, G.Ryu, D.Sagawa, H.Sakurai, N.Sampson, A. L.Scott, L. M.Shah, P. D.Shibata, F.Shibata, T.Shimodaira, H.Shin, B. K.Smith, J. D.Sokolsky, P.Springer, R. W.Stokes, B. T.Stratton, S. R.Stroman, T. A.Suzawa, T.Takamura, M.Takeda, M.Takeishi, R.Taketa, A.Takita, M.Tameda, Y.Tanaka, H.Tanaka, K.Tanaka, M.Thomas, S. B.Thomson, G. B.Tinyakov, P.Tkachev, I.Tokuno, H.Tomida, T.Troitsky, S.Tsunesada, Y.Tsutsumi, K.Uchihori, Y.Udo, S.Urban, F.Vasiloff, G.Wong, T.Yamane, R.Yamaoka, H.Yamazaki, K.Yang, J.Yashiro, K.Yoneda, Y.Yoshida, S.Yoshii, H.Zollinger, R.Zundel, Z.Abbasi, R. U.Abe, M.Abu-Zayyad, T.Allen, M.Anderson, R.Azuma, R.Barcikowski, E.Belz, J. W.Bergman, D. R.Blake, S. A.Cady, R.Chae, M. J.Cheon, B. G.Chiba, J.Chikawa, M.Cho, W. R.Fujii, T.Fukushima, M.Goto, T.Hanlon, W.Hayashi, Y.Hayashida, N.Hibino, K.Honda, K.Ikeda, D.Inoue, N.Ishii, T.Ishimori, R.Ito, H.Ivanov, D.Jui, C. C. H.Kadota, K.Kakimoto, F.Kalashev, O.Kasahara, K.Kawai, H.Kawakami, S.Kawana, S.Kawata, K.Kido, E.Kim, H. B.Kim, J. H.Kitamura, S.Kitamura, Y.Kuzmin, V.Kwon, Y. J.Lan, J.Lim, S. I.Lundquist, J. P.Machida, K.Martens, K.Matsuda, T.Matsuyama, T.Matthews, J. N.Minamino, M.
Ewha Authors
양종만
SCOPUS Author ID
양종만scopus
Issue Date
2015
Journal Title
ASTROPHYSICAL JOURNAL
ISSN
0004-637XJCR Link

1538-4357JCR Link
Citation
ASTROPHYSICAL JOURNAL vol. 804, no. 2
Keywords
acceleration of particlescosmic rayssurveys
Publisher
IOP PUBLISHING LTD
Indexed
SCOPUS; SCI; SCIE WOS scopus
Document Type
Article
Abstract
We report on the search for steady point-like sources of neutral particles around 10(18) eV between 2008 and 2013 May with the scintillator SD of the Telescope Array experiment. We found overall no significant point-like excess above 0.5 EeV in the northern sky. Subsequently, we also searched for coincidence with the Fermi bright Galactic sources. No significant coincidence was found within the statistical uncertainty. Hence, we set an upper limit on the neutron flux that corresponds to an averaged flux of 0.07 km(-2) yr(-1) for E > 1 EeV in the northern sky at the 95% confidence level. This is the most stringent flux upper limit in a northern sky survey assuming point-like sources. The upper limit at the 95% confidence level on the neutron flux from Cygnus X-3 is also set to 0.2 km(-2) yr(-1) for E > 0.5 EeV. This is an order of magnitude lower than previous flux measurements.
DOI
10.1088/0004-637X/804/2/133
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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