On the nature of SCT X-1

Details On the nature of SCT X-1 On the nature of SCT X-1

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasj...45..449y&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 45, no. 3, p. 449-452.

Astronomy and Astrophysics

Astronomy

1

Pulsars, X Ray Binaries, Doppler Effect, Stellar Oscillations, X Ray Spectra

Scientific paper

Results of a follow-up observation on the peculiar X-ray pulsar Sct X-1 are presented. The X-ray flux was very weak about 0.8 mCrab and the X-ray spectrum exhibited a large absorption of about 10 exp 23 h/sq cm. Data obtained confirm that coherent pulsation has a period of 111.194 +/- 0.003 s and the rate of the pulse period change is 3.3 x 10 exp -9 s/s. It is suggested that Sct X-1 is more likely to be a neutron star binary than a DQ Her type star.

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