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Pulsating Variable Stars in the MACHO Bulge database: The Semiregular Variables
D. Minniti, C. Alcock, R. A. Allsman +17
We review the pulsating stars contained in the top 24 fields of the MACHO bulge database, with special emphasis on the red semiregular stars. Based on period, amplitude and color c…
The MACHO Project SMC Variable Star Inventory: I. The Second-overtone Mode of Cepheid Pulsation From First/Second Overtone (1H/2H) Beat Cepheids
The MACHO Collaboration, C. Alcock, R. A. Allsman +16
We report the discovery of 20 1H/2H and 7 F/1H beat Cepheids in the SMC by the MACHO Project. We utilize the 20 1H/2H stars to determine lightcurve shape for the SMC second-overton…
The MACHO Project: Microlensing and Variable Stars
The MACHO Collaboration, K. H. Cook, C. Alcock +18
The MACHO Project monitors millions of stars in the Large Magellanic Cloud, the Small Magellanic Cloud and the bulge of the Milky Way searching for the gravitational microlensing s…