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An X-ray Pulsar, Metal-rich Ejecta, and Shocked Ambient Medium in the Supernova Remnant G292.0+1.8

Published online by Cambridge University Press:  19 July 2016

John P. Hughes
Affiliation:
Rutgers University, NJ, USA
Robert B. Friedman
Affiliation:
Rutgers University, NJ, USA
Patrick Slane
Affiliation:
Harvard-Smithsonian Center for Astrophysics, MA, USA
Sangwook Park
Affiliation:
Pennsylvania State University, PA, USA

Abstract

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We report the discovery of pulsed X-ray emission from the compact object CXOU J112439.1-591620 within the Galactic supernova remnant G292.0+1.8 using the High Resolution Camera on the Chandra X-Ray Observatory. The X-ray period is consistent with the extrapolation of the radio period and spindown rate of PSR J1124−5916. The X-ray pulse is single peaked and broad. There is no optical counterpart to a limit of MV ∼ 26. The pressure in the pulsar wind nebula is considerably less than that in the reverse-shock-heated ejecta and circumstellar medium, indicating that the reverse shock has not yet begun to interact with the nebula.

Type
Part 4: Pulsar Wind Nebulae and Their Environments
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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