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Correlations Between X-ray and Radio Pulses in Vela

Published online by Cambridge University Press:  19 July 2016

Jennifer Donovan
Affiliation:
Franklin and Marshall College, Lancaster, Pennsylvania, USA
Andrea Lommen
Affiliation:
Franklin and Marshall College, Lancaster, Pennsylvania, USA
Zaven Arzoumanian
Affiliation:
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Alice Harding
Affiliation:
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Mark Strickman
Affiliation:
Code 7651.2, Naval Research Laboratory, Washington, DC, USA
Carl Gwinn
Affiliation:
University of California, Santa Barbara, California, USA
Richard Dodson
Affiliation:
University of Tasmania, Tasmania, Australia
Peter McCulloch
Affiliation:
University of Tasmania, Tasmania, Australia
David Moffett
Affiliation:
Furman University, Greenville, South Carolina, USA

Abstract

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Pulse-shape changes correlating with flux have been shown to exist in the Vela pulsar's radio emission (Krishnamohan & Downs 1983). The aim of this work was to look for correlations between radio and X-ray flux in Vela on a pulse-by-pulse basis. We found that Vela emits significantly more X-rays during radio pulses with strong flux than during weak radio flux pulses, which indicates that the mechanisms creating the Vela pulsar's X-ray and radio emission must be related.

Type
Part 7: Observations of Pulsed Emission
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Harding, A. K., Strickman, M. S., Gwin, C., Dodson, R., Moffet, D., & McCulloch, P. 2002, ApJ, 576, 376.CrossRefGoogle Scholar
Krishnamohan, S., & Downs, G. S. 1983, ApJ, 265, 372.CrossRefGoogle Scholar
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