X-ray and Optical Monitoring of the Peculiar Source 4U 1700+24/HD154791

Details X-ray and Optical Monitoring of the Peculiar Source 4U 1700+24/HD154791 X-ray and Optical Monitoring of the Peculiar Source 4U 1700+24/HD154791

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cnoc.conf...27m&link_type=abstract

The Second National Conference on Astrophysics of Compact Objects, held in Bologna (Italy), September 19 - 21, 2001, p. 27

Astronomy and Astrophysics

Astrophysics

Scientific paper

We report on X-ray broad band observations of this source performed with several spacecraft, and on (quasi-)simultaneous ground optical observations from the Loiano 1.5-meter telescope. The X-ray spectral properties of the source are best described by a thermal Comptonization spectrum plus a soft energy excess, which can be modeled in the form of a blackbody emission with kTBB~ 1 keV. Our data, together with the available information on this source suggests that the scenario which best describes the object consists of a wide binary system in which a neutron star accretes matter from the wind of a M-type giant star.

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