Publications [#248777] of Christopher Walter

Papers Published
  1. Ikeda, M; Takeda, A; Fukuda, Y; Vagins, MR; Abe, K; Iida, T; Ishihara, K; Kameda, J; Koshio, Y; Minamino, A; Mitsuda, C; Miura, M; Moriyama, S; Nakahata, M; Obayashi, Y; Ogawa, H; Sekiya, H; Shiozawa, M; Suzuki, Y; Takeuchi, Y; Ueshima, K; Watanabe, H; Yamada, S; Higuchi, I; Ishihara, C; Ishitsuka, M; Kajita, T; Kaneyuki, K; Mitsuka, G; Nakayama, S; Nishino, H; Okumura, K; Saji, C; Takenaga, Y; Clark, S; Desai, S; Dufour, F; Kearns, E; Likhoded, S; Litos, M; Raaf, JL; Stone, JL; Sulak, LR; Wang, W; Goldhaber, M; Casper, D; Cravens, JP; Dunmore, J; Kropp, WR; Liu, DW; Mine, S; Regis, C; Smy, MB; Sobel, HW; Ganezer, KS; Hill, J; Keig, WE; Jang, JS; Kim, JY; Lim, IT; Scholberg, K; Tanimoto, N; Walter, CW; Wendell, R; Ellsworth, RW; Tasaka, S; Guillian, G; Learned, JG; Matsuno, S; Messier, MD; Hayato, Y; Ichikawa, AK; Ishida, T; Ishii, T; Iwashita, T; Kobayashi, T; Nakadaira, T; Nakamura, K; Nitta, K; Oyama, Y; Totsuka, Y; Suzuki, AT; Hasegawa, M; Hiraide, K; Maesaka, H; Nakaya, T; Nishikawa, K; Sasaki, T; Yamamoto, S; Yokoyama, M; Haines, TJ; Dazeley, S; Hatakeyama, S; Svoboda, R; Sullivan, GW; Turcan, D; Habig, A; Sato, T; Itow, Y; Koike, T; Tanaka, T; Jung, CK; Kato, T; Kobayashi, K; Malek, M; McGrew, C; Sarrat, A; Terri, R; Yanagisawa, C; Tamura, N; Idehara, Y; Sakuda, M; Sugihara, M; Kuno, Y; Yoshida, M; Kim, SB; Yang, BS; Yoo, J; Ishizuka, T; Okazawa, H; Choi, Y; Seo, HK; Gando, Y; Hasegawa, T; Inoue, K; Furuse, Y; Ishii, H; Nishijima, K; Ishino, H; Watanabe, Y; Koshiba, M; Chen, S; Deng, Z; Liu, Y; Kielczewska, D; Zalipska, J; Berns, H; Gran, R; Shiraishi, KK; Stachyra, A; Thrane, E; Washburn, K; Wilkes, RJ, Search for Supernova Neutrino Bursts at Super‐Kamiokande, The Astrophysical Journal, vol. 669 no. 1 (November, 2007), pp. 519-524 [pdf], [doi] .

    Abstract:
    We report the results of a search for neutrino bursts from supernova explosions using the Super-Kamiokande detector. Super-Kamiokande is sensitive to core-collapse supernova explosions via observation of their neutrino emissions. The expected number of events comprising such a burst is ∼104, and the average energy of the neutrinos is in the range of a few tens of MeV for a core-collapse supernova explosion at a typical distance in our galaxy (10 kpc); this strong signal means that the detection efficiency anywhere within our galaxy and well past the Magellanic Clouds should be 100%. We examined a data set taken from 1996 May to 2001 July, and from 2002 December to 2005 October, corresponding to 2589.2 live days. However, there is no evidence of such a supernova explosion during the data-taking period. The 90% CL. upper limit on the rate of core-collapse supernova explosions out to distances of 100 kpc is found to be 0.32 SN yr-1. © 2007. The American Astronomical Society. All rights reserved.