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2004•Symposium - International Astronomical UnionOpen access

Correlations Between X-ray and Radio Pulses in Vela

Jennifer L. Donovan, A. N. Lommen, Zaven Arzoumanian, A. K. Harding, M. S. Strickman, C. R. Gwinn, Richard Dodson, Peter M. McCulloch, D. A. Moffett

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Abstract

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.

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What this paper is about

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.

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Available abstract

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.

Key concepts: Vela, Pulsar, Physics, Astrophysics, Flux (metallurgy), Pulse (music), Astronomy, X-ray

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