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2000-03-16
Searching for periodicities in the MACHO light curve of LMC X-2
C. AlcockR. A. AllsmanD. R. AlvesT. S. AxelrodA. C. BeckerD. P. BennettP. A. CharlesK. H. CookA. J. DrakeK. C. FreemanM. GehaK. GriestP. GrootM. J. LehnerS. L. MarshallK. E. McGowanD. MinnitiC. A. NelsonB. A. PetersonP. PopowskiM. R. PrattP. J. QuinnW. SutherlandA. B. TomaneyT. VandeheiJ. van Paradijs
文献摘要
Using the exceptional long-term monitoring capabilities of the MACHO project, we present here the optical history of LMC X-2 for a continuous 6-yr period. These data were used to investigate the previously claimed periodicities for this source of 8.15 h and 12.54 d : we find upper amplitude limits of 0.10 mag and 0.09 mag, respectively.
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