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search for doppler-shifted gamma-ray emission from ss 433 using the smm spectrometerData accumulated from 1980 to 1983 with the Gamma Ray Spectrometer aboard NASA's Solar Maximum Mission (SMM) satellite were searched for evidence of red and blue Doppler-shifted 1.37 MeV Mg-24 nuclear lines from SS 433. The SMM data base covers 270 days when SS 433 was in the field of view and includes periods of radio flaring and quiescence. No evidence was found for Doppler-shifted line emission in any of the spectra. The range of 3-sigma upper limits for individual 9 day integration periods was 0.0008-0.0023 photons/sq cm per sec for the blue beam, encompassing the reported about 1.5 MeV line, and 0.0008-0.002 photons/sq cm per sec for the red beam, encompassing the reported about 1.2 MeV line; the average 3-sigma upper limit in each beam for shifted about 1.37 MeV lines is 0.0015 photons/sq cm per sec for single 9 day integrations. The 3-sigma upper limit on 1.37 MeV gamma-ray emission over 23 9-day integration intervals for the red beam and 28 intervals for the blue beam is 0.0002 photons/sq cm per sec. These new limits from SMM can be reconciled with the HEAO 3 results only if SS 433 emits gamma radiation at or above the SMM sensitivity limit on rare occasions due to variable physical conditions in the system.
Document ID
19890058328
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Geldzahler, B. J.
(Applied Research Corp. Landover, MD, United States)
Share, G. H.
(Applied Research Corp. Landover, MD, United States)
Kinzer, R. L.
(Applied Research Corp. Landover, MD, United States)
Magura, J.
(U.S. Navy, E. O. Hulburt Center for Space Research, Washington DC, United States)
Chupp, E. L.
(New Hampshire, University Durham, United States)
Date Acquired
August 14, 2013
Publication Date
July 15, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 342
ISSN: 0004-637X
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAS5-28609
CONTRACT_GRANT: NASA ORDER S-14513-D
CONTRACT_GRANT: BMFT-010K-017-ZA/WS/WRK-02754
Distribution Limits
Public
Copyright
Other