Pulsar wind nebulae in EGRET error boxes

Mallory S.E. Roberts, Crystal L. Brogan, Bryan M. Gaensler, Jason W.T. Hessels, C. Y. Ng, Roger W. Romani

Research output: Contribution to journalArticlepeer-review


A remarkable number of pulsar wind nebulae (PWN) are coincident with EGRET γ-ray sources. X-ray and radio imaging studies of unidentified EGRET sources have resulted in the discovery of at least six new pulsar wind nebulae (PWN). Stationary PWN (SPWN) appear to be associated with steady EGRET sources with hard spectra, typical for γ-ray pulsars. Their toroidal morphologies can help determine the geometry of the pulsar which is useful for constraining models of pulsed γ-ray emission. Rapidly moving PWN (RPWN) with more cometary morphologies seem to be associated with variable EGRET sources in regions where the ambient medium is dense compared to what is typical for the ISM.

Original languageEnglish (US)
Pages (from-to)93-100
Number of pages8
JournalAstrophysics and Space Science
Issue number1-4
StatePublished - Jan 2005


  • Gamma-ray
  • GeV J1809-2327
  • PWN

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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