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Session 59 - Pulsating/Variable Stars.
Display session, Wednesday, June 12
Great Hall,

[59.12] The MACHO Project LMC Variable Star Inventory: Improved Beat Cepheid Parameters

D. L. Welch (McMaster), R. A. Allsman (ANU), C. Alcock, D. Alves, D. P. Bennett, K. H. Cook, S. L. Marhsall, D. Minniti (LLNL/CfPA), T. S. Axelrod, K. C. Freeman, B. A. Peterson, A. W. Rodgers (MSSSO), P. J. Quinn (ESO), W. Sutherland (Oxford), A. Becker, M. R. Pratt, C. W. Stubbs (UW/CfPA), K. Griest, J. Guern, M. Lehner (UCSD/CfPA)

We report improved parameters for approximately 60 beat Cepheids found in 22 MACHO Project survey fields. These parameters incorporate an improved photometric calibration and data taken over an interval of 1000 days. The parameters reported include period, period ratio, mode identification, Fourier amplitudes and ratios, mean magnitude and color, and position.

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