BATSE Occultation Lightcurves for Two Pulsars(Credit: A.Harmon (NASA/MSFC) A gif version is available. A0535+26 is a member of the "Be" class of transient X- ray sources, which consist of a neutron star in an eccentric orbit about a early type emission-line star. Transient outbursts occur when anamolous wind activity coincides approximately with periastron passage.
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