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New COMPTEL results on pulsar studies at MeV energiesThe Compton telescope (COMPTEL) onboard the Compton Gamma Ray Observatory (CGRO) detected the pulsar PSR B1951-32 at MeV energies, and found indications of a signal from PSR B0656+14. In the combined spectra from COMPTEL and the energetic gamma ray experiment telescope (EGRET) onboard CGRO, it can be seen that the maximum luminosities of these objects are reached in the COMPTEL energy range. These spectra can be compared with those from four other pulsars observed in MeV energies with COMPTEL. The spectral properties of five of the six pulsars, Vela, PSR B1509-58, PSR B1951-32 and PSR B0656+14, require breaks and bends at MeV energies. The sixth pulsar, the Crab pulsar, approximately follows a power law flux relation from keV to GeV energies. It is concluded that this spectral behavior may play a role in the discrimination between current gamma ray emission models.
Document ID
19970025784
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Hermsen, W.
(Space Research Organization Netherlands Utrecht Netherlands)
Kuiper, L.
(Space Research Organization Netherlands Utrecht Netherlands)
Schoenfelder, V.
(Max-Planck-Inst. fuer Extraterrestrische Physik Garching Germany)
Strong, A. W.
(Max-Planck-Inst. fuer Extraterrestrische Physik Garching Germany)
Bennett, K.
(European Space Agency. European Space Research and Technology Center, ESTEC Noordwijk Netherlands)
Much, R.
(European Space Agency. European Space Research and Technology Center, ESTEC Noordwijk Netherlands)
McConnell, M.
(New Hampshire Univ. Durham, NH United States)
Ryan, J.
(New Hampshire Univ. Durham, NH United States)
Carraminana, A.
(Instituto Nacional de Astrofisica, Opyica y Electronica Tonantzintla, Mexico)
Date Acquired
August 17, 2013
Publication Date
March 1, 1997
Publication Information
Publication: Proceedings of 2nd INTEGRAL Workshop 'The Transparent Universe'
Subject Category
Astronomy
Accession Number
97N25254
Funding Number(s)
CONTRACT_GRANT: NAS5-26645
CONTRACT_GRANT: DARA-50-QV-90968
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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