Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94..323b&link_type=abstract
Astronomy and Astrophysics, vol. 94, no. 2, Feb. 1981, p. 323-326.
Astronomy and Astrophysics
Astrophysics
4
Eclipsing Binary Stars, Stellar Mass Accretion, Stellar Models, X Ray Stars, Magnetic Stars, Neutron Stars, Stellar Rotation, White Dwarf Stars
Scientific paper
A phenomenological model is presented for the binary X-ray source 4U1700-37. The steady X-ray emission arises from spherical accretion of matter onto a slowly rotating magnetized neutron star, the flux variations with time-scales equal to or less than 1 s being caused by the filamentary structure of the accretion flow. The strong enhancements of the X-ray flux on time-scales of 1.5 h are interpreted as an increase in the accretion rate produced by releasing the particle reservoir in the magnetotail of the neutron star, rather as with the phenomenon of geomagnetic substorms.
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