RXTE Observations of the X-Ray Binary 2S 0114+650

Details RXTE Observations of the X-Ray Binary 2S 0114+650 RXTE Observations of the X-Ray Binary 2S 0114+650

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...536..450h&link_type=abstract

The Astrophysical Journal, Volume 536, Issue 1, pp. 450-454.

Astronomy and Astrophysics

Astronomy

21

Stars: Individual (2S 0114+650), Stars: Neutron, X-Rays: Stars

Scientific paper

Observations from the proportional counter array experiment on board the Rossi X-Ray Timing Explorer (RXTE) of the temporal and spectral properties of the high-mass X-ray binary 2S 0114+650 are reported. We find highly variable X-ray emission modulated at a period of 2.73 hr. The temporal results indicate that 2S 0114+650 is the slowest neutron star rotator presently known. Spectral analysis reveals parameters typical of a high-mass X-ray binary system having an absorbed power law with an index of about 1.3 with a high-energy cutoff at approximately 8 keV. The introduction of a fluorescent iron line at 6.4 keV allowed better spectral fits, particularly during low states of emission. We have also determined that the intensity of 2S 0114+650 is strongly attenuated during part of the orbit, which makes it a member of the small class of eclipsing massive X-ray binaries.

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