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Limits on the high-energy gamma and neutrino fluxes from the SGR 1806-20 giant flare of 27 December 2004 with the AMANDA-II detector |
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| Authors: | Achterberg A Ackermann M Adams J Ahrens J Andeen K Atlee D W Bahcall J N Bai X Baret B Bartelt M Barwick S W Bay R Beattie K Becka T Becker J K Becker K-H Berghaus P Berley D Bernardini E Bertrand D Besson D Z Blaufuss E Boersma D J Bohm C Bolmont J Böser S Botner O Bouchta A Braun J Burgess C Burgess T Castermans T Chirkin D Christy B Clem J Cowen D F D'Agostino M V Davour A Day C T De Clercq C Demirörs L Descamps F Desiati P Deyoung T Diaz-Velez J C Dreyer J Dumm J P Duvoort M R Edwards W R Ehrlich R Eisch J Ellsworth R W Evenson P A Fadiran O Fazely A R Feser T Filimonov K Fox B D |
| Affiliation: | Department of Physics and Astronomy, Utrecht University/SRON, NL-3584 CC Utrecht, The Netherlands. |
| Abstract: | On 27 December 2004, a giant gamma flare from the Soft Gamma-Ray Repeater 1806-20 saturated many satellite gamma-ray detectors, being the brightest transient event ever observed in the Galaxy. AMANDA-II was used to search for down-going muons indicative of high-energy gammas and/or neutrinos from this object. The data revealed no significant signal, so upper limits (at 90% C.L.) on the normalization constant were set: 0.05(0.5) TeV-1 m;{-2} s;{-1} for gamma=-1.47 (-2) in the gamma flux and 0.4(6.1) TeV-1 m;{-2} s;{-1} for gamma=-1.47 (-2) in the high-energy neutrino flux. |
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