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

Bibcode
2011AN....332..375I
DOI
10.1002/asna.201011503
Impiombato, D.; Zampieri, L.; Falomo, R.; Grisé, F.; Soria, R.
Bibliographical reference

Astronomische Nachrichten, Vol.332, Issue 4, p.375

Advertised on:
5
2011
Number of authors
5
IAC number of authors
0
Citations
7
Refereed citations
7
Description
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 3σ. The low statistical significance of this modulation, along with the lack of detection in the V band, make its identification uncertain.
Type
Non-refereed

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