AbstractWe report on the luminosity dependent change of the cyclotron resonance energy obtained from a transient X-ray pulsar, 4U 0115+63. Using RXTE data observed on 1999 March, we found that the fundamental resonance energy stayed constant (∼11keV) when the source luminosity was above ∼5×1037ergs−1. As the luminosity decreased below ∼5×1037ergs−1, the fundamental resonance energy gradually increased up to ∼16keV at 0.16×1037ergs−1. The luminosity dependence of the resonance energy can be understood by the change of the accretion column height.
Study of the luminosity-dependent cyclotron resonance energies of the binary X-ray pulsar 4U 0115+63 with RXTE
Advances in Space Research ; 38 , 12 ; 2756-2758
2005-09-01
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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