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

D. Impiombato, L. Zampieri, R. Falomo, F. Grisé, R. Soria

Research output: Contribution to journalArticle

7 Scopus citations

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 3σ. The low statistical significance of this modulation, along with the lack of detection in the V band, make its identification uncertain.

Original languageEnglish (US)
Pages (from-to)375-378
Number of pages4
JournalAstronomische Nachrichten
Volume332
Issue number4
DOIs
StatePublished - Apr 1 2011

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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