AbstractAbstract
[en] Report of search for likely point sources for neutrinos observed by the Amanda detector. Places intensity limits on observable point sources. This paper describes the search for astronomical sources of high-energy neutrinos using the AMANDA-B10 detector, an array of 302 photomultiplier tubes, used for the detection of Cherenkov light from upward traveling neutrino-induced muons, buried deep in ice at the South Pole. The absolute pointing accuracy and angular resolution were studied by using coincident events between the AMANDA detector and two independent telescopes on the surface, the GASP air Cherenkov telescope and the SPASE extensive air shower array. Using data collected from April to October of 1997 (130.1 days of livetime), a general survey of the northern hemisphere revealed no statistically significant excess of events from any direction. The sensitivity for a flux of muon neutrinos is based on the effective detection area for through-going muons. Averaged over the Northern sky, the effective detection area exceeds 10,000 m2 for Eμ ∼ 10 TeV. Neutrinos generated in the atmosphere by cosmic ray interactions were used to verify the predicted performance of the detector. For a source with a differential energy spectrum proportional to Eν-2 and declination larger than +40o, we obtain E2 (dNν/dE) (le) 10-6 GeV cm-2 s-1 for an energy threshold of 10 GeV
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Source
LBNL--53665; AC--03-76SF00098; Journal Publication Date: 02/01/2003
Record Type
Journal Article
Journal
Astrophysical Journal; ISSN 0004-637X; ; v. 583; [vp.]
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Descriptors (DEI)
Descriptors (DEC)
COSMIC RADIATION, COSMIC SHOWERS, DETECTION, EARTH PLANET, ELEMENTARY PARTICLES, FERMIONS, IONIZING RADIATIONS, LEPTONS, MASSLESS PARTICLES, MEASURING INSTRUMENTS, NEUTRINOS, PHOTOTUBES, PLANETS, RADIATION DETECTION, RADIATION DETECTORS, RADIATION SOURCES, RADIATIONS, SECONDARY COSMIC RADIATION, SHOWERS
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