Cepheids in the LMC: Results from the MACHO Project

1996/10/03 by D. L. Welch, The MACHO Collaboration, C. Alcock +43
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Geomagnetism and Paleomagnetism Studies #Geophysics and Gravity Measurements #Ionosphere and magnetosphere dynamics #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9610024

8 pages, 6 Encapsulated PostScript figures, uses conf_iap.sty. To appear in the Proceeding of the 12th IAP Colloquium "Variable Stars and the Astrophysical Returns of Microlensing Surveys". Author list corrected

openalex publication_date 1996/10/03 · arxiv created 1996/10/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The approximately 1500 Cepheid variables in 22 LMC fields of the MACHO Project survey have been calibrated and analysed. In this paper, we report improved period ratios for a total of 73 beat Cepheids and provide a first look at the Fourier decomposition parameters for both singly- and doubly-periodic Cepheids. We also note an unusual amplitude-changing pulsator.

Related

• The MACHO Project SMC Variable Star Inventory: I. The Second-overtone Mode of Cepheid Pulsation From First/Second Overtone (1H/2H) Beat Cepheids
• Cepheids in the Magellanic Clouds
• Period Changes of the LMC Cepheids Determined from the Harvard, OGLE and ASAS Data
• Period Changes of the SMC Cepheids from the Harvard, OGLE and ASAS Data
• Classical Cepheids -- a Review