Evidence of X-ray periodicity in LSI+61 303.

Details Evidence of X-ray periodicity in LSI+61 303. Evidence of X-ray periodicity in LSI+61 303.

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...320l..25p&link_type=abstract

Astronomy and Astrophysics, v.320, p.L25-L28

Astronomy and Astrophysics

Astrophysics

57

Stars: Individual: Lsi +61 303, Radio Continuum: Stars, Stars: Variables, X-Rays: Stars

Scientific paper

we have carried out a period analysis of 2-10 keV observations of the 26.5d radio periodic X-ray binary LSI+61 303 retrieved from the quick-look results database provided by the ASM/RXTE team. after applying different period search methods, we find evidence that X-ray outbursts in LSI+61 303 are very likely to recur with the same radio outburst period. Our best estimate of the LSI+61 303 X-ray period is 26.7+/-0.2d. The folded X-ray light curve displays a fractional change in flux by a factor of ~5 and its highest emission level overlaps with the active state of the radio emission.

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