Variable stars in the bar of the Large Magellanic Cloud: the photometric catalogue

Abstract

The catalogue of the Johnson-Cousins B,V and I light curves obtained for 162 variable stars (135 RR Lyrae, 4 candidate Anomalous Cepheids, 11 Classical Cepheids, 11 eclipsing binaries and 1 delta Scuti star) in two areas close to the bar of the Large Magellanic Cloud is presented along with coordinates, finding charts, periods, epochs, amplitudes, and mean quantities (intensity- and magnitude-averaged luminosities) of the variables with full coverage of the light variations. A star by star comparison is made with MACHO and OGLE II photometries based on both variable and constant stars in common, and the transformation relationships to our photometry are provided. The pulsation properties of the RR Lyrae stars in the sample are discussed in detail. Parameters of the Fourier decomposition of the light curves are derived for the fundamental mode RR Lyrae stars with complete and regular curves (29 stars). They are used to estimate metallicities, absolute magnitudes, intrinsic (B-V)o colours, and temperatures of the variable stars, according to Jurcsik and Kovacs (1996), and Kovacs and Walker (2001) method. Quantities derived from the Fourier parameters are compared with the corresponding observed quantities. In particular, the "photometric" metallicities are compared with the spectroscopic metal abundances derived by Gratton et al. (2004) from low resolution spectra obtained with FORS at the Very Large Telescope.

arXiv comment52 pages. Uses aa.cls, in press on A&A, figs 3 to 11, Tables 5, 6, 14 and Appendix A will appear in full only in the electronic edition of the Journal

References in corpus (24)

• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Homogeneous Photometry for Star Clusters and Resolved Galaxies. II. Photometric Standard Stars
• The Star Formation History of the Local Group dwarf galaxy Leo I
• Calibration of the MACHO Photometry Database
• The Abundance Spread Among Giants and Subgiants in the Globular Cluster Omega Centauri
• A Review of the Distance and Structure of the Large Magellanic Cloud
• Metal abundances of RR Lyrae stars in the bar of the Large Magellanic Cloud
• Variable Stars in Leo A: RR Lyraes, Short-period Cepheids, and Implications on Stellar Content
• The MACHO Project Large Magellanic Cloud variable star inventory. XI. Frequency analysis of the fundamental mode RR Lyrae stars
• High resolution spectroscopy of metal rich giants in omega Cen: first indication of SNe Ia enrichment
• The MACHO Project 9 Million Star Color-Magnitude Diagram of the Large Magellanic Cloud
• The Globular Cluster Omega Centauri and the Oosterhoff Dichotomy
• The Dwarf Spheroidal Companions to M31: Variable Stars in Andromeda VI
• The MACHO Project LMC Variable Star Inventory IV: Multimode RR Lyrae Stars, Distance to the LMC and Age of the Oldest Stars
• Empirical relations for cluster RR Lyrae stars revisited
• Fourier decomposition and frequency analysis of the pulsating stars with P < 1day in the OGLE database. II. Multiperiodic RR Lyrae variables in the Galactic Bulge
• The RR Lyrae Period-Amplitude Relation as a Clue to the Origin of the Oosterhoff Dichotomy
• Updated pulsation models for anomalous Cepheids
• RR Lyrae and short-period variable stars in the dwarf irregular galaxy NGC 6822
• On the Light Curve - Luminosity Relation of RR Lyrae Stars
• The MACHO Project Large Magellanic Cloud Variable Star Inventory. XIII. Fourier Parameters for the First Overtone RR Lyrae Variables and the LMC Distance
• The variable star population in Phoenix: coexistence of Anomalous and short-period Classical Cepheids, and detection of RR Lyrae variables
• Metallicities for Double Mode RR Lyrae in the Large Magellanic Cloud
• The Optical Gravitational Lensing Experiment. BVI Maps of Dense Stellar Regions. II. The Large Magellanic Cloud

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