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2018ApJ...857L...4A - Astrophys. J., 857, L4-L4 (2018/April-2)

Search for neutrinos in Super-Kamiokande associated with the GW170817 neutron-star merger.

ABE K., BRONNER C., HAYATO Y., IKEDA M., IYOGI K., KAMEDA J., KATO Y., KISHIMOTO Y., MARTI L., MIURA M., MORIYAMA S., NAKAHATA M., NAKAJIMA Y., NAKANO Y., NAKAYAMA S., ORII A., PRONOST G., SEKIYA H., SHIOZAWA M., SONODA Y., TAKEDA A., TAKENAKA A., TANAKA H., TASAKA S., YANO T., AKUTSU R., KAJITA T., NISHIMURA Y., OKUMURA K., TSUI K.M., LABARGA L., FERNANDEZ P., BLASZCZYK F.d.M., KACHULIS C., KEARNS E., RAAF J.L., STONE J.L., SULAK L.R., BERKMAN S., TOBAYAMA S., BIAN J., ELNIMR M., KROPP W.R., LOCKE S., MINE S., WEATHERLY P., SMY M.B., SOBEL H.W., TAKHISTOV V., GANEZER K.S., HILL J., KIM J.Y., LIM I.T., PARK R.G., LI Z., O'SULLIVAN E., SCHOLBERG K., WALTER C.W., GONIN M., IMBER J., MUELLER T.A., ISHIZUKA T., NAKAMURA T., JANG J.S., CHOI K., LEARNED J.G., MATSUNO S., AMEY J., LITCHFIELD R.P., MA W.Y., UCHIDA Y., WASCKO M.O., CATANESI M.G., INTONTI R.A., RADICIONI E., DE ROSA G., ALI A., COLLAZUOL G., LUDOVICI L., CAO S., FRIEND M., HASEGAWA T., ISHIDA T., ISHII T., KOBAYASHI T., NAKADAIRA T., NAKAMURA K., OYAMA Y., SAKASHITA K., SEKIGUCHI T., TSUKAMOTO T., ABE K., HASEGAWA M., SUZUKI A.T., TAKEUCHI Y., HAYASHINO T., HIROTA S., JIANG M., MORI M., NAKAMURA KE., NAKAYA T., WENDELL R.A., ANTHONY L.H.V., McCAULEY N., PRITCHARD A., FUKUDA Y., ITOW Y., MURASE M., MUTO F., MIJAKOWSKI P., FRANKIEWICZ K., JUNG C.K., LI X., PALOMINO J.L., SANTUCCI G., VIELA C., WILKING M.J., YANAGISAWA C., FUKUDA D., ISHINO H., ITO S., KIBAYASHI A., KOSHIO Y., NAGATA H., SAKUDA M., XU C., KUNO Y., WARK D., DI LODOVICO F., RICHARDS B., MOLINA SEDGWICK S., TACIK R., KIM S.B., COLE A., THOMPSON L., OKAZAWA H., CHOI Y., ITO K., NISHIJIMA K., KOSHIBA M., SUDA Y., YOKOYAMA M., CALLAND R.G., HARTZ M., MARTENS K., MURDOCH M., QUILAIN B., SIMPSON C., SUZUKI Y., VAGINS M.R., HAMABE D., KUZE M., OKAJIMA Y., YOSHIDA T., ISHITSUKA M., MARTIN J.F., NANTAIS C.M., TANAKA H.A., TOWSTEGO T., KONAKA A., CHEN S., WAN L., MINAMINO A. (The Super-Kamiokande Collaboration)

Abstract (from CDS):

We report the results of a neutrino search in Super-Kamiokande (SK) for coincident signals with the first detected gravitational wave (GW) produced by a binary neutron-star merger, GW170817, which was followed by a short gamma-ray burst, GRB170817A, and a kilonova/macronova. We searched for coincident neutrino events in the range from 3.5 MeV to ∼100 PeV, in a time window ±500 s around the gravitational wave detection time, as well as during a 14-day period after the detection. No significant neutrino signal was observed for either time window. We calculated 90% confidence level upper limits on the neutrino fluence for GW170817. From the upward-going-muon events in the energy region above 1.6 GeV, the neutrino fluence limit is 16.0–0.6+0.7 (21.3–0.8+1.1) cm–2 for muon neutrinos (muon antineutrinos), with an error range of ±5° around the zenith angle of NGC4993, and the energy spectrum is under the assumption of an index of -2. The fluence limit for neutrino energies less than 100 MeV, for which the emission mechanism would be different than for higher-energy neutrinos, is also calculated. It is 6.6 x 107 cm–2 for anti-electron neutrinos under the assumption of a Fermi-Dirac spectrum with average energy of 20 MeV.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): astroparticle physics - gravitational waves - neutrinos

Simbad objects: 4

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