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

R. U. Abbasi; M. Abe; T. Abu-Zayyad; M. Allen; R. Anderson; R. Azuma; E. Barcikowski; J. W. Belz; D. R. Bergman; S. A. Blake; R. Cady; M. J. Chae; B. G. Cheon; J. Chiba; M. Chikawa; W. R. Cho; T. Fujii; M. Fukushima; T. Goto; W. Hanlon; Y. Hayashi; N. Hayashida; K. Hibino; K. Honda; D. Ikeda; N. Inoue; T. Ishii; R. Ishimori; H. Ito; D. Ivanov; C. C H Jui; K. Kadota; F. Kakimoto; O. Kalashev; K. Kasahara; H. Kawai; S. Kawakami; S. Kawana; K. Kawata; E. Kido; H. B. Kim; J. H. Kim; J. H. Kim; S. Kitamura; Y. Kitamura; V. Kuzmin; Y. J. Kwon; J. Lan; S. I. Lim; J. P. Lundquist; K. Machida; K. Martens; T. Matsuda; T. Matsuyama; J. N. Matthews; M. Minamino; K. Mukai; I. Myers; K. Nagasawa; S. Nagataki; T. Nakamura; T. Nonaka; A. Nozato; S. Ogio; J. Ogura; M. Ohnishi; H. Ohoka; K. Oki; T. Okuda; M. Ono; A. Oshima; Shunsuke Ozawa; I. H. Park; M. S. Pshirkov; D. C. Rodriguez; G. Rubtsov; D. Ryu; H. Sagawa; N. Sakurai; A. L. Sampson; L. M. Scott; P. D. Shah; F. Shibata; T. Shibata; H. Shimodaira; B. K. Shin; J. D. Smith; P. Sokolsky; R. W. Springer; B. T. Stokes; S. R. Stratton; T. A. Stroman; T. Suzawa; M. Takamura; M. Takeda; R. Takeishi; A. Taketa; M. Takita; Y. Tameda; H. Tanaka; K. Tanaka; M. Tanaka; S. B. Thomas; G. B. Thomson; P. Tinyakov; I. Tkachev; H. Tokuno; T. Tomida; S. Troitsky; Y. Tsunesada; K. Tsutsumi; Y. Uchihori; S. Udo; F. Urban; G. Vasiloff; T. Wong; R. Yamane; H. Yamaoka; K. Yamazaki; J. Yang; K. Yashiro; Y. Yoneda; S. Yoshida; H. Yoshii; R. Zollinger; Z. Zundel

doi:10.1088/0004-637X/804/2/133

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

R. U. Abbasi, M. Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, M. J. Chae, B. G. Cheon, J. Chiba, M. Chikawa, W. R. Cho, T. Fujii, M. Fukushima, T. Goto, W. HanlonY. Hayashi, N. Hayashida, K. Hibino, K. Honda, D. Ikeda, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, C. C H Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H. B. Kim, J. H. Kim, J. H. Kim, S. Kitamura, Y. Kitamura, V. Kuzmin, Y. J. Kwon, J. Lan, S. I. Lim, J. P. Lundquist, K. Machida, K. Martens, T. Matsuda, T. Matsuyama, J. N. Matthews, M. Minamino, K. Mukai, I. Myers, K. Nagasawa, S. Nagataki, T. Nakamura, T. Nonaka, A. Nozato, S. Ogio, J. Ogura, M. Ohnishi, H. Ohoka, K. Oki, T. Okuda, M. Ono, A. Oshima, Shunsuke Ozawa, I. H. Park, M. S. Pshirkov, D. C. Rodriguez, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A. L. Sampson, L. M. Scott, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, J. D. Smith, P. Sokolsky, R. W. Springer, B. T. Stokes, S. R. Stratton, T. A. Stroman, T. Suzawa, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S. B. Thomas, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Uchihori, S. Udo, F. Urban, G. Vasiloff, T. Wong, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, K. Yashiro, Y. Yoneda, S. Yoshida, H. Yoshii, R. Zollinger, Z. Zundel

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We report on the search for steady point-like sources of neutral particles around 1018 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 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 EeV. This is an order of magnitude lower than previous flux measurements.

Original language	English
Article number	133
Journal	Astrophysical Journal
Volume	804
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/804/2/133
Publication status	Published - 2015 May 10

Keywords

acceleration of particles
cosmic rays
surveys

ASJC Scopus subject areas

Space and Planetary Science
Astronomy and Astrophysics

Access to Document

10.1088/0004-637X/804/2/133

Cite this

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., ... Zundel, Z. (2015). A NORTHERN SKY SURVEY FOR POINT-LIKE SOURCES OF EeV NEUTRAL PARTICLES WITH THE TELESCOPE ARRAY EXPERIMENT. Astrophysical Journal, 804(2), [133]. https://doi.org/10.1088/0004-637X/804/2/133

Abbasi, RU, Abe, M, Abu-Zayyad, T, Allen, M, Anderson, R, Azuma, R, Barcikowski, E, Belz, JW, Bergman, DR, Blake, SA, Cady, R, Chae, MJ, Cheon, BG, Chiba, J, Chikawa, M, Cho, WR, 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, CCH, Kadota, K, Kakimoto, F, Kalashev, O, Kasahara, K, Kawai, H, Kawakami, S, Kawana, S, Kawata, K, Kido, E, Kim, HB, Kim, JH, Kim, JH, Kitamura, S, Kitamura, Y, Kuzmin, V, Kwon, YJ, Lan, J, Lim, SI, Lundquist, JP, Machida, K, Martens, K, Matsuda, T, Matsuyama, T, Matthews, JN, Minamino, M, 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, IH, Pshirkov, MS, Rodriguez, DC, Rubtsov, G, Ryu, D, Sagawa, H, Sakurai, N, Sampson, AL, Scott, LM, Shah, PD, Shibata, F, Shibata, T, Shimodaira, H, Shin, BK, Smith, JD, Sokolsky, P, Springer, RW, Stokes, BT, Stratton, SR, Stroman, TA, Suzawa, T, Takamura, M, Takeda, M, Takeishi, R, Taketa, A, Takita, M, Tameda, Y, Tanaka, H, Tanaka, K, Tanaka, M, Thomas, SB, Thomson, GB, 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 2015, 'A NORTHERN SKY SURVEY FOR POINT-LIKE SOURCES OF EeV NEUTRAL PARTICLES WITH THE TELESCOPE ARRAY EXPERIMENT', Astrophysical Journal, vol. 804, no. 2, 133. https://doi.org/10.1088/0004-637X/804/2/133

@article{af5af133efdc421e859899239a0d32b3,

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

abstract = "We report on the search for steady point-like sources of neutral particles around 1018 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 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 EeV. This is an order of magnitude lower than previous flux measurements.",

keywords = "acceleration of particles, cosmic rays, surveys",

author = "Abbasi, {R. U.} and M. Abe and T. Abu-Zayyad and M. Allen and R. Anderson and R. Azuma and E. Barcikowski and Belz, {J. W.} and Bergman, {D. R.} and Blake, {S. A.} and R. Cady and Chae, {M. J.} and Cheon, {B. G.} and J. Chiba and M. Chikawa and Cho, {W. R.} and T. Fujii and M. Fukushima and T. Goto and W. Hanlon and Y. Hayashi and N. Hayashida and K. Hibino and K. Honda and D. Ikeda and N. Inoue and T. Ishii and R. Ishimori and H. Ito and D. Ivanov and Jui, {C. C H} and K. Kadota and F. Kakimoto and O. Kalashev and K. Kasahara and H. Kawai and S. Kawakami and S. Kawana and K. Kawata and E. Kido and Kim, {H. B.} and Kim, {J. H.} and Kim, {J. H.} and S. Kitamura and Y. Kitamura and V. Kuzmin and Kwon, {Y. J.} and J. Lan and Lim, {S. I.} and Lundquist, {J. P.} and K. Machida and K. Martens and T. Matsuda and T. Matsuyama and Matthews, {J. N.} and M. Minamino and K. Mukai and I. Myers and K. Nagasawa and S. Nagataki and T. Nakamura and T. Nonaka and A. Nozato and S. Ogio and J. Ogura and M. Ohnishi and H. Ohoka and K. Oki and T. Okuda and M. Ono and A. Oshima and Shunsuke Ozawa and Park, {I. H.} and Pshirkov, {M. S.} and Rodriguez, {D. C.} and G. Rubtsov and D. Ryu and H. Sagawa and N. Sakurai and Sampson, {A. L.} and Scott, {L. M.} and Shah, {P. D.} and F. Shibata and T. Shibata and H. Shimodaira and Shin, {B. K.} and Smith, {J. D.} and P. Sokolsky and Springer, {R. W.} and Stokes, {B. T.} and Stratton, {S. R.} and Stroman, {T. A.} and T. Suzawa and M. Takamura and M. Takeda and R. Takeishi and A. Taketa and M. Takita and Y. Tameda and H. Tanaka and K. Tanaka and M. Tanaka and Thomas, {S. B.} and Thomson, {G. B.} and P. Tinyakov and I. Tkachev and H. Tokuno and T. Tomida and S. Troitsky and Y. Tsunesada and K. Tsutsumi and Y. Uchihori and S. Udo and F. Urban and G. Vasiloff and T. Wong and R. Yamane and H. Yamaoka and K. Yamazaki and J. Yang and K. Yashiro and Y. Yoneda and S. Yoshida and H. Yoshii and R. Zollinger and Z. Zundel",

year = "2015",

month = may,

day = "10",

doi = "10.1088/0004-637X/804/2/133",

language = "English",

volume = "804",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

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TY - JOUR

T1 - A NORTHERN SKY SURVEY FOR POINT-LIKE SOURCES OF EeV NEUTRAL PARTICLES WITH THE TELESCOPE ARRAY EXPERIMENT

AU - Abbasi, R. U.

AU - Abe, M.

AU - Abu-Zayyad, T.

AU - Allen, M.

AU - Anderson, R.

AU - Azuma, R.

AU - Barcikowski, E.

AU - Belz, J. W.

AU - Bergman, D. R.

AU - Blake, S. A.

AU - Cady, R.

AU - Chae, M. J.

AU - Cheon, B. G.

AU - Chiba, J.

AU - Chikawa, M.

AU - Cho, W. R.

AU - Fujii, T.

AU - Fukushima, M.

AU - Goto, T.

AU - Hanlon, W.

AU - Hayashi, Y.

AU - Hayashida, N.

AU - Hibino, K.

AU - Honda, K.

AU - Ikeda, D.

AU - Inoue, N.

AU - Ishii, T.

AU - Ishimori, R.

AU - Ito, H.

AU - Ivanov, D.

AU - Jui, C. C H

AU - Kadota, K.

AU - Kakimoto, F.

AU - Kalashev, O.

AU - Kasahara, K.

AU - Kawai, H.

AU - Kawakami, S.

AU - Kawana, S.

AU - Kawata, K.

AU - Kido, E.

AU - Kim, H. B.

AU - Kim, J. H.

AU - Kitamura, S.

AU - Kitamura, Y.

AU - Kuzmin, V.

AU - Kwon, Y. J.

AU - Lan, J.

AU - Lim, S. I.

AU - Lundquist, J. P.

AU - Machida, K.

AU - Martens, K.

AU - Matsuda, T.

AU - Matsuyama, T.

AU - Matthews, J. N.

AU - Minamino, M.

AU - Mukai, K.

AU - Myers, I.

AU - Nagasawa, K.

AU - Nagataki, S.

AU - Nakamura, T.

AU - Nonaka, T.

AU - Nozato, A.

AU - Ogio, S.

AU - Ogura, J.

AU - Ohnishi, M.

AU - Ohoka, H.

AU - Oki, K.

AU - Okuda, T.

AU - Ono, M.

AU - Oshima, A.

AU - Ozawa, Shunsuke

AU - Park, I. H.

AU - Pshirkov, M. S.

AU - Rodriguez, D. C.

AU - Rubtsov, G.

AU - Ryu, D.

AU - Sagawa, H.

AU - Sakurai, N.

AU - Sampson, A. L.

AU - Scott, L. M.

AU - Shah, P. D.

AU - Shibata, F.

AU - Shibata, T.

AU - Shimodaira, H.

AU - Shin, B. K.

AU - Smith, J. D.

AU - Sokolsky, P.

AU - Springer, R. W.

AU - Stokes, B. T.

AU - Stratton, S. R.

AU - Stroman, T. A.

AU - Suzawa, T.

AU - Takamura, M.

AU - Takeda, M.

AU - Takeishi, R.

AU - Taketa, A.

AU - Takita, M.

AU - Tameda, Y.

AU - Tanaka, H.

AU - Tanaka, K.

AU - Tanaka, M.

AU - Thomas, S. B.

AU - Thomson, G. B.

AU - Tinyakov, P.

AU - Tkachev, I.

AU - Tokuno, H.

AU - Tomida, T.

AU - Troitsky, S.

AU - Tsunesada, Y.

AU - Tsutsumi, K.

AU - Uchihori, Y.

AU - Udo, S.

AU - Urban, F.

AU - Vasiloff, G.

AU - Wong, T.

AU - Yamane, R.

AU - Yamaoka, H.

AU - Yamazaki, K.

AU - Yang, J.

AU - Yashiro, K.

AU - Yoneda, Y.

AU - Yoshida, S.

AU - Yoshii, H.

AU - Zollinger, R.

AU - Zundel, Z.

PY - 2015/5/10

Y1 - 2015/5/10

N2 - We report on the search for steady point-like sources of neutral particles around 1018 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 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 EeV. This is an order of magnitude lower than previous flux measurements.

AB - We report on the search for steady point-like sources of neutral particles around 1018 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 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 EeV. This is an order of magnitude lower than previous flux measurements.

KW - acceleration of particles

KW - cosmic rays

KW - surveys

UR - http://www.scopus.com/inward/record.url?scp=84930001572&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930001572&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/804/2/133

DO - 10.1088/0004-637X/804/2/133

M3 - Article

AN - SCOPUS:84930001572

SN - 0004-637X

VL - 804

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 133

ER -

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

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