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

Authors
Alcock, C Allsman, RA Alves, DR Axelrod, TS Becker, AC Bennett, DP Charles, PA Cook, KH Drake, AJ Freeman, KC Geha, M Griest, K Groot, P Lehner, MJ Marshall, SL McGowan, KE Minniti, D Nelson, CA Peterson, BA Popowski, P Pratt, MR Quinn, PJ Sutherland, W Tomaney, AB Vandehei, T van Paradijs, J
Citation
C. Alcock et al., Searching for periodicities in the MACHO light curve of LMC X-2, M NOT R AST, 316(4), 2000, pp. 729-733
Citations number
30
Categorie Soggetti
Space Sciences
Journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN journal
00358711 → ACNP
Volume
316
Issue
4
Year of publication
2000
Pages
729 - 733
Database
ISI
SICI code
0035-8711(20000821)316:4<729:SFPITM>2.0.ZU;2-A
Abstract
Using the exceptional long-term monitoring capabilities of the MACHO projec t, we present here the optical history of LMC X-2 for a continuous 6-yr per iod. These data were used to investigate the previously claimed periodiciti es for this source of 8.15 h and 12.54 d: we find upper limits of 0.10 mag and 0.09 mag, respectively.