SPI observations of positron annihilation radiation from the 4th galactic quadrant: sky distribution

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dc.creatorWeidenspointner, G.
dc.creatorLonjou, V.
dc.creatorKnoedlseder, J.
dc.creatorJean, P.
dc.creatorAllain, M.
dc.creatorvon Ballmoos, P.
dc.creatorHarris, M. J.
dc.creatorSkinner, G. K.
dc.creatorVedrenne, G.
dc.creatorTeegarden, B. J.
dc.creatorGehrels, N.
dc.creatorGuessoum, N.
dc.creatorSchoenfelder, V.
dc.creatorChapuis, C.
dc.creatorDurouchoux, Ph.
dc.creatorCisana, E.
dc.creatorValsesia, M.
dc.date2004-06-07
dc.date.accessioned2026-07-07T02:13:27Z
dc.date.available2026-07-07T02:13:27Z
dc.descriptionDuring its first year in orbit the INTEGRAL observatory performed deep exposures of the Galactic Center region and scanning observations of the Galactic plane. We report on the status of our analysis of the positron annihilation radiation from the 4th Galactic quadrant with the spectrometer SPI, focusing on the sky distribution of the 511 keV line emission. The analysis methods are described; current constraints and limits on the Galactic bulge emission and the bulge-to-disk ratio are presented.
dc.description4 pages, 2 figures, accepted for publication in the proceedings of the 5th INTEGRAL workshop
dc.identifierhttps://arxiv.org/abs/astro-ph/0406178
dc.identifierhttp://arxiv.org/abs/astro-ph/0406178
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7820
dc.subjectAstrophysics
dc.titleSPI observations of positron annihilation radiation from the 4th galactic quadrant: sky distribution
dc.typetext

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