EGRET high-energy gamma-ray pulsar studies. II. Individual millisecond pulsars
J. M. Fierro (Stanford University, USA) et al.
(1995) ApJ, 447, 807-812
Abstract More than 2 yr of observations performed by the Energetic Gamma Ray Telescope (EGRET) aboard the Compton Gamma Ray Observatory (CGRO) are examined for evidence of high-energy gamma-ray emission from individual millisecond pulsars. Upper limits are placed on steady emission. In addition, for those millisecond pulsars for which an accurate timing solution is available, upper limits to pulsed gamma-ray emission are established. The results are compared with predictions of current pulsar gamma-ray emission models. In particular, the absence of a detection of gamma-rays from the nearby millisecond pulsar PSR J0437-4715 severely constrains theories regarding gamma-ray emission from millisecond pulsars.
Key words: gamma rays: observations - pulsars: general