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Searching for the orbital period of the ultraluminous X-ray source NGC 1313 X-2

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arxiv 1109.4437 v1 pith:U5J3GIYB submitted 2011-09-20 astro-ph.HE

L. Zampieri , D. Impiombato , R. Falomo , F. Grisé , R. Soria This is my paper · ORCID
classification astro-ph.HE
keywords bandmodulationsignificancealonganalyzedavailablecurvedataset
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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 day 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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