Searching for periodicities in the MACHO light curve of LMC X-2
/ Authors
C. Alcock, R. Allsman, D. Alves, T. Axelrod, A. Becker, D. Bennett, P. Charles, K. Cook, A. Drake, K. Freeman
and 16 more authors
M. Geha, K. Griest, P. Groot, M. Lehner, S. Marshall, K. McGowan, D. Minniti, C. Nelson, B. Peterson, P. Popowski, M. Pratt, P. Quinn, W. Sutherland, A. Tomaney, T. Vandehei, J. Paradijs
/ Abstract
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 limits of 0.10 mag and 0.09 mag, respectively.
Journal: Monthly Notices of the Royal Astronomical Society