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2021RNAAS...5..130S - Research Notes of the AAS, 5, 130 (2021/June-0)

Photometry of Optical Outbursts in the Be/X-Ray Binary Swift J010745.0-722740.

SCHMIDTKE P.C., COWLEY A.P. and UDALSKI A.

Abstract (from CDS):

We present V and I photometry for the Be/X-ray binary Swift J010745.0-722740 taken in 1997-2020. The data show recurring outbursts, with an amplitude up to 0.4 mag and an improved orbital period of 1180.0 ± 0.3 days. The light curve during outburst has a double-peaked profile, with a rapid rise and gradual decline. The effective temperature of the outburst region is ∼6200 K, much cooler than that of an underlying Be star.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Be stars - High mass x-ray binary stars

Simbad objects: 2

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