Gamma-pulsar PSR 0833-45 phasogram feature on the base of the "Gamma-2" telescope observations. (original) (raw)
ADS
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- Afanasyev, V. G. ;
- Belaousov, A. S. ;
- Blokhintsev, I. D. ;
- Volsenskaya, V. A. ;
- Kalinkin, L. F. ;
- Leikov, N. G. ;
- Nesterov, V. E. ;
- Galper, A. M. ;
- Zemskov, V. M. ;
- Kirillov-Ugryumov, V. G. ;
- Lutchkov, B. I. ;
- Ozerov, Y. V. ;
- Rudko, V. A. ;
- Runtso, M. F. ;
- Kurnosova, L. V. ;
- Rusakovitch, M. A. ;
- Topchiev, N. P. ;
- Fradkin, M. I. ;
- Tugaenko, V. Y. ;
- Chuikin, E. I. ;
- Gros, M. ;
- Grenier, I. ;
- Barouch, E. ;
- Wallyn, P. ;
- Bazer-Bachi, A. R. ;
- Lavigne, J. M. ;
- Olive, J. F. ;
- Juchniewicz, J.
Abstract
The Vela pulsar PSR 0833 - 45 was observed with the Gamma-1 gamma-ray telescope in summer 1990 and spring 1991. Data of recent radio measurements are used to construct light curves of the pulsar and perform a preliminary temporal analysis for gamma-ray energy above 100 MeV. In particular, attention is given to the positions of main light-curve features with respect to the radio phase and also to the hypothesis of the variability of the intensity of the pulsed emission on the basis of data of two observations separated by a six-month interval. These results are compared to findings obtained by the COS-B group.
Publication:
Soviet Astronomy Letters
Pub Date:
April 1992
Bibcode:
Keywords:
- Gamma Ray Astronomy;
- Light Curve;
- Pulsars;
- Gamma Ray Telescopes;
- Stellar Radiation;
- Astrophysics