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

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arxiv 1011.2043 v1 pith:HV7Z7N42 submitted 2010-11-09 astro-ph.HE

D. Impiombato , L. Zampieri , 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 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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