Searching for periodicities in the MACHO light curve of LMC X-2

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...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2000-08, Vol.316 (4), p.729-733
Hauptverfasser: Alcock, C., Allsman, R. A., Alves, D. R., Axelrod, T. S., Becker, A. C., Bennett, D. P., Charles, P. A., Cook, K. H., Drake, A. J., Freeman, K. C., Geha, M., Griest, K., Groot, P., Lehner, M. J., Marshall, S. L., McGowan, K. E., Minniti, D., Nelson, C. A., Peterson, B. A., Popowski, P., Pratt, M. R., Quinn, P. J., Sutherland, W., Tomaney, A. B., Vandehei, T., van Paradijs, J.
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container_issue 4
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container_title Monthly notices of the Royal Astronomical Society
container_volume 316
creator Alcock, C.
Allsman, R. A.
Alves, D. R.
Axelrod, T. S.
Becker, A. C.
Bennett, D. P.
Charles, P. A.
Cook, K. H.
Drake, A. J.
Freeman, K. C.
Geha, M.
Griest, K.
Groot, P.
Lehner, M. J.
Marshall, S. L.
McGowan, K. E.
Minniti, D.
Nelson, C. A.
Peterson, B. A.
Popowski, P.
Pratt, M. R.
Quinn, P. J.
Sutherland, W.
Tomaney, A. B.
Vandehei, T.
van Paradijs, J.
description 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.
doi_str_mv 10.1046/j.1365-8711.2000.03511.x
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subjects binaries: close
stars: individual: LMC X-2
X-rays: stars
title Searching for periodicities in the MACHO light curve of LMC X-2
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