Search for Periodicities Near 59 S in the Cos-B Gamma-Ray Data of 2CG 195+04 (geminga)
Abstract
The COS-B data relating to five observations in the general direction of Geminga, spanning 6.7 years, were searched for pulsation near 59 s. The SAS-2 indication is not confirmed. An indication of a 59 s pulsation in the gamma ray emission from 2CG195+04 (Geminga) was reported. Early analysis of COS-B data supported the result while later improved statistics did not confirm it. Subsequently, detection of a 59 s pulsation in the emission from the direction of Geminga at ultra high gamma and X-rays was reported. Geminga was identified with the X-ray source 1E0630+128. The final COS-B data on Geminga which was observed five times for a total of 214 days are reported.
- Publication:
-
19th International Cosmic Ray Conference (ICRC19), Volume 1
- Pub Date:
- August 1985
- Bibcode:
- 1985ICRC....1..169B
- Keywords:
-
- Emissivity;
- Gamma Rays;
- Periodic Variations;
- Radiation Sources;
- X Ray Sources;
- Cos-B Satellite;
- Data Acquisition;
- Pulsed Radiation;
- Radio Astronomy;
- Sas-2;
- Satellite Observation;
- Spaceborne Astronomy;
- Space Radiation