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

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dc.creatorLonjou, V.
dc.creatorWeidenspointner, G.
dc.creatorKnodlseder, J.
dc.creatorJean, P.
dc.creatorAllain, M.
dc.creatorvon Ballmoos, P.
dc.creatorHarris, M. J.
dc.creatorRoques, J. P.
dc.creatorSkinner, G. K.
dc.creatorTeegarden, B. J.
dc.creatorGehrels, N.
dc.creatorGuessoum, N.
dc.creatorChapuis, C.
dc.creatorDurouchoux, Ph.
dc.creatorCisana, E.
dc.creatorValsesia, M.
dc.date2004-11-15
dc.date.accessioned2026-07-07T02:15:50Z
dc.date.available2026-07-07T02:15:50Z
dc.descriptionThe status of the analysis of the electron/positron annihilation radiation performed by INTEGRAL/SPI in the 4th GALACTIC QUADRANT is reported. We use data from the first two Galactic Center Deep Exposures (GCDE) and from the Galactic Plane Scans (GPS). The analysis presented here is focused on the spectroscopic aspects of the electron/positron annihilation radiation. Background substraction and model fitting methods are described, and the parameters of the 511 keV line (flux, energy, and width) are deduced.
dc.description4 pages, 5 figures, accepted for publication in the proceedings of the 5th INTEGRAL Workshop (held in Munich, 2004)
dc.identifierhttps://arxiv.org/abs/astro-ph/0411414
dc.identifierhttp://arxiv.org/abs/astro-ph/0411414
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8564
dc.subjectAstrophysics
dc.titleSPI observations of positron annihilation radiation from the 4th galactic quadrant: Spectroscopy
dc.typetext

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