The hard X-ray spectrum of X Persei

Details The hard X-ray spectrum of X Persei The hard X-ray spectrum of X Persei

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l..31w&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, July 1, 1981, p. L31-L34.

Astronomy and Astrophysics

Astrophysics

18

Binary Stars, Bremsstrahlung, Neutron Stars, Stellar Luminosity, X Ray Sources, X Ray Spectra, Dwarf Stars, Giant Stars, Spectrum Analysis, Stellar Spectra

Scientific paper

Results of observations of 3U 0352 + 30, the source associated with the X Persei system, in the energy range 12-180 keV are reported. The measurements were made on 1978 August 22 with the UCSD/MIT High-Energy X-ray and Low-Energy Gamma-ray Experiment on HEAO 1. Data taken simultaneously in the energy range 2-50 keV indicate that, in addition to a 7 keV thermal bremsstrahlung component, there is a second component of higher energy. It is found that this higher energy component fits a power law of photon index 1.3 (+0.4, -0.5) and is pulsed at the 13.95 minute period of the lower energy component.

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