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arXiv · 1011.2043

Optical variability of the ultraluminous X-ray source NGC 1313 X-2

D. Impiombato·L. Zampieri·R. Falomo·F. Grisé·R. Soria
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Abstract

We analyzed the longest phase-connected photometric dataset available for NGC 1313 X-2, looking for the ~6 day modulation reported by Liu et al. (2009). The folded B band light curve shows a 6 days periodicity with a significance slightly larger than 3 sigma. The low statistical significance of this modulation, along with the lack of detection in the V band, make its identification uncertain.

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D. Impiombato, L. Zampieri, R. Falomo, F. Grisé, R. Soria. 2010-11-09. Optical variability of the ultraluminous X-ray source NGC 1313 X-2. https://doi.org/10.1002/asna.201011503

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