ASCA Observation of the Rapid Burster in Quiescence

Details ASCA Observation of the Rapid Burster in Quiescence ASCA Observation of the Rapid Burster in Quiescence

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48l..27a&link_type=abstract

Publications of the Astronomical Society of Japan, v.48, p.L27-L31.

Astronomy and Astrophysics

Astronomy

26

Stars: Individual (Rapid Burster), Stars: Neutron, X-Rays: Binaries, X-Rays: Sources, X-Rays: Transients

Scientific paper

We observed the Rapid Burster in quiescence and detected a significant X-ray flux for the first time. Neither a type-I nor type-II burst was observed during the observation. The luminosity was estimated to be (3(+2}_{-1) )times 10(33) erg s(-1) ( 2--10 keV), assuming a power-law with a photon index of 2 and a distance of 10 kpc. This luminosity is comparable to that of neutron-star transients in quiescence. If mass accretion is responsible for the X-ray emission, we can constrain the magnetic-field strength and spin period of the neutron star. A highly magnetized, rapidly rotating neutron star may be excluded.

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