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New Detection of X-Ray Pulsar Nebulae by ASCA

Published online by Cambridge University Press:  25 May 2016

N. Kawai ,
Keisuke Tamura  and
S. Shibata
N. Kawai
Affiliation:
The Institute of Physical and Chemical Research (RIKEN) 2-1 Hirosawa, Wako, Saitama 351-01, Japan
Keisuke Tamura
Affiliation:
Venture Business Laboratory, Nagoya University, Chikusa-ku, Nagoya 464-01, Japan
S. Shibata
Affiliation:
Department of Physics, Yamagata University, 1-4-12 Kojirokawa, Yamagata 990, Japan

Extract

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X-ray images of rotation-powered pulsars were examined using ASCA Gas Imaging Spectrometer (GIS). The data sets are taken from those available in the ASCA public archive in the performance verification (PV) phase and the guest-observing (GO) phase 1. We detected diffuse X-ray sources in the vicinity of nine pulsars including five new detections. There are large variety in their morphology and spatial size. The high probability of finding such diffuse sources around pulsars suggests that they exist universally for all the active pulsars, and that they are powered by the pulsars. We propose that the pulsar-powered nebula is a good probe to measure the otherwise invisible energy flux dissipating from a pulsar into the surrounding space.

Type
Session 1: Plasma and Fresh Nucleosynthesis Phenomena
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 265 - 266
Copyright
Copyright © Kluwer 1998