| Issue |
A&A
Volume 415, Number 2, February IV 2004
|
|
|---|---|---|
| Page(s) | 521 - 529 | |
| Section | Extragalactic astronomy | |
| DOI | https://doi.org/10.1051/0004-6361:20034633 | |
| Published online | 11 February 2004 | |
BVRIJK light curves and radial velocity curves
for selected Magellanic Cloud Cepheids
*,**
1
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
2
Univ. of North Carolina at Chapel Hill, Dept. of Physics and Astronomy, Phillips Hall, Chapel Hill, NC-27599-3255, USA e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
3
Universidad de Concepción, Departamento de Física, Casilla 160-C, Concepción, Chile e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
4
Observatoire de Paris, Section de Meudon DESPA, 92195 Meudon Cedex, France
5
European Southern Observatory, Casilla 19001, Santiago 19, Chile e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
6
The Observatories, Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, Ca 91101, USA e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
7
California Institute of Technology, IPAC, MC 100-22, Pasadena, Ca 91125, USA e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Corresponding author: J. Storm (AIP), This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
5
August
2003
Accepted:
14
November
2003
Abstract
We present high-precision and well sampled BVRIJK light curves and radial
velocity curves for a sample of five Cepheids in the SMC.
In addition we present radial velocity curves for three Cepheids in the LMC.
The low-metallicity (![Mathematical equation: $\mbox{[Fe/H]}\,\approx -0.7$](/articles/aa/abs/2004/08/aah4716/aah4716_tex_eq2.png)
) SMC stars have been
selected for use in a Baade-Wesselink type analysis to constrain the
metallicity effect on the Cepheid Period-Luminosity
relation. The stars have periods of around 15 days so they are similar
to the Cepheids observed by the Extragalactic Distance Scale Key Project
on the Hubble Space Telescope.
We show that the stars are representative of the SMC Cepheid population at that
period and thus will provide a good sample for the proposed analysis.
The actual Baade-Wesselink analysis is presented in a companion paper.
Key words: Cepheids / Magellanic Clouds
Based on data acquired at the Las Campanas Observatory, Chile, the Cerro Tololo Inter American Observatory, Chile, and the European Southern Observatory, Chile.
Tables 10–27 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi.bin/qcat?J/A+A/415/521
© ESO, 2004
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