Compton Gamma Ray Observatory data of the COMPTEL and EGRET telescopes from 3 viewing periods have been used to search for gamma-ray emission from the Lagrangian points L_4_ and L_5_ of the binary system including the eclipsing pulsar PSR1957+20. The result was negative and the upper limits derived remain significantly below detections reported earlier.
Astronomy and Astrophysics Supplement Series
European Southern Observatory (ESO)
R. Buccheri, V. Salamone, K. Bennett, M. Busetta, L. Kuiper, W. Hermsen, M. McConnell, R. Much, J. Ryan, V. Schönfelder, and H. Steinle. SEARCH FOR GAMMA-RAY EMISSION FROM THE LAGRANGIAN POINTS OF PSR 1957+20. 1996, Astron. Astrophys. Suppl., 115, 305.
c European Southern Observatory (ESO)