Multiple Photometric Periods in SXP1323 (RX J0103.6-7201)

Astronomy and Astrophysics – Astronomy

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Optical, Binaries, Neutron Stars, Pulsars, Variables

Scientific paper

RX J0103.6-7201 (SXP1323) is a Be/neutron-star binary in the Small Magellanic Cloud with the longest known X-ray pulsation period (1323 s; Haberl & Pietsch 2005, A&A, 438, 211). The optical counterpart is #1393 from the emission-line catalogue of Meyssonnier & Azzopardi (1993, A&AS, 102, 451). Periodogram analysis of OGLE-II photometric data for this 14th magnitude star reveals three strong periodicities at 26.16 d, 0.88 d, and 0.41 d.

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