Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...209..584o&link_type=abstract
Astrophysical Journal, vol. 209, Oct. 15, 1976, pt. 1, p. 584-591.
Astronomy and Astrophysics
Astronomy
41
Gamma Rays, Pulsars, Pulsed Radiation, Radio Astronomy, Sas-2, Energy Dissipation, Photon Density, Radiant Flux Density, Spaceborne Astronomy, Tables (Data)
Scientific paper
Data from the SAS-2 high-energy (above 35 MeV) gamma-ray experiment have been examined for pulsed emission from each of 75 radio pulsars which were viewed by the instrument and which have sufficiently well-defined period and period-derivative information from radio observations to allow for gamma-ray periodicity searches. When gamma-ray arrival times were converted to pulsar phase using the radio reference timing information, two pulsars, PSR 1747-46 and PSR 1818-04, showed positive effects, each with a probability of less than 1 part in 10,000 of being a random fluctuation in the data for that pulsar. These are in addition to PSR 0531+21 and PSR 0833-45, previously reported. The results of this study suggest that gamma-ray astronomy has reached the detection threshold for gamma-ray pulsars and that work in the near future should give important new information on the nature of pulsars.
Fichtel Carl E.
Kniffen Donald A.
Ogelman Hakki
Thompson Daniel J.
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