Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379l..61m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 379, Oct. 1, 1991, p. L61, L64.
Astronomy and Astrophysics
Astrophysics
22
Cyclotron Resonance, Line Spectra, Neutron Stars, Pulsars, X Ray Binaries, Cepheus Constellation, Magnetic Stars, Red Shift, Stellar Magnetic Fields, X Ray Spectra
Scientific paper
From Ginga observations of the transient X-ray pulsar Cep X-4, a spectral line feature attributable to electron cyclotron resonance was discovered at about 30 keV in the 1.2-37 keV X-ray spectrum. The detection, a fifth firm example of cyclotron resonance from X-ray pulsars, implies a surface magnetic field of about 2.6 x 10 to the 12th (1 + z) G for this pulsar, where z is the gravitational redshift. Throughout the 66.25 s pulses, the cyclotron feature appears in absorption, with at most + or - 5 percent variation in the resonance center energy around the mean value of 30.5 + or - 0.4 keV. The resonance profile depends significantly on the pulse phase in such a way that it is deepest on the decay slope of the leading peak of the double-peaked pulse profile.
Kamijo Shunsuke
Koyama Katsuji
Makishima Kazuo.
Mihara Tatehiro
Nagase Fumiaki
No associations
LandOfFree
Discovery of a cyclotron resonance feature at 30 keV from the transient X-ray pulsar Cepheus X-4 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Discovery of a cyclotron resonance feature at 30 keV from the transient X-ray pulsar Cepheus X-4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of a cyclotron resonance feature at 30 keV from the transient X-ray pulsar Cepheus X-4 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1875296