Study of the luminosity-dependent cyclotron resonance energies of the binary X-ray pulsar 4U 0115+63 with RXTE

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Study of the luminosity-dependent cyclotron resonance energies of the binary X-ray pulsar 4U 0115+63 with RXTE

Study of the luminosity-dependent cyclotron resonance energies of the binary X-ray pulsar 4U 0115+63 with RXTE

Nakajima, M. / Mihara, T. / Makishima, K. / Niko, H.

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.

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Title :

Study of the luminosity-dependent cyclotron resonance energies of the binary X-ray pulsar 4U 0115+63 with RXTE

Contributors:

Nakajima, M. (author) / Mihara, T. (author) / Makishima, K. (author) / Niko, H. (author)

Published in:

Advances in Space Research ; 38 , 12 ; 2756-2758

Publication date :

2005-09-01

Size :

3 pages

ISSN :

DOI :

https://doi.org/10.1016/j.asr.2005.09.049

Type of media :

Article (Journal)

Type of material :

Electronic Resource

Language :

English

Keywords :

X-ray , Binary , Pulsar , Cyclotron

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