Computer Science
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410..744g&link_type=abstract
The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 744-747 (1997).
Computer Science
Pulsars, Neutron Stars, X-Ray Sources, X-Ray Bursts, X-Ray
Scientific paper
The accreting x-ray pulsar, Hercules X-1, emits a spectrum with a localized feature at about 35 keV which has been observed repeatedly and is generally interpreted as an absorption line resulting from transitions between quantized levels in an intense magnetic field at the neutron star's polar cap. It thus affords a diagnostic of plasmas under such unusual conditions, as well as providing a key to the structure of the magnetosphere and to the mass flow. The Rossi X-Ray Timing Explorer has observed Her X-1 three times to date, with 10 000 seconds for the shortest observation. This rich data set permits spectral analysis to a new level of precision. We describe some of the more interesting results of this analysis, with particular emphasis on the stability of the line and continuum over time.
Gruber Duane E.
Heindl William A.
Kunz Martin
Rothschild Richard E.
Scott Mathew D.
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