Abstract
Abstract : We present upper limits from CGRO Oriented Scintillation Spectrometer Experiment (OSSE) observations of pulsars and a summary of pulsar observations made with the Compton Gamma-Ray Observatory (CGRO). We also report an upper limit to phase-averaged emission for the globular cluster 47 Tuc which is thought to contain many millisecond pulsars. The 2sigma upper limit is 3 x 10(exp -5) photons sq cm s(exp-1) keV(exp-1) in the 50-150 keV energy range. The best predictor of a pulsar having a detectable gamma-ray emission appears to be the X-ray luminosities observed by the Rontgen Satellite (ROSAT) (~0.1-2.4 keBV) or the EINSTEIN Satellite (~0.1-4.0 keV). We compare the gamma-ray data to models related to the inferred magnetic field, the spin down rate, an/or the frequency. Apparent correlations indicated by the pulsars detected by OSSE and the CGRO Energetic Gamma Ray Experiment Telescope (EGRET) have counter-examples in all cases.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
