EROS-2 beat Cepheids in Magellanic Clouds


We present the results of a systematic search of Beat Cepheids (BC) in the Magellanic Clouds from the EROS-2 database. Observations were carried out on the MARLY telescope (ESO La Silla, Chile) between July 1996 and March 2003. A specific pipeline was developed to extract periodic light curves from the photometric data obtained with the PEIDA package (Ansari, 1996VA.....40..519A). Two different populations are identified in each Cloud: the BCs pulsating on the fundamental and first overtone modes (FO/F objects) simultaneously, and those pulsating on the first and second overtones (SO/FO objects). A Fourier analysis was performed on each light curve. We derived lower, higher and mean values of metallicities for the FO/F objects, using linear nonadiabatic convective stellar models.

Cone search capability for table J/A+A/495/249/so_fo (Beat Cepheids pulsating on the first and second overtones (SO/FO objects))

Cone search capability for table J/A+A/495/249/fo_f (Beat Cepheids pulsating on the fundamental and first overtone modes (FO/F objects))

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Creator Marquette J.B.; Beaulieu J.P.; Buchler J.R.; Szabo R.; Tisserand P.; Belghith S.; Fouque P.; Lesquoy E.; Milsztajn; A.; Schwarzenberg-Czerny A; Afonso C.; Albert J.N.; Andersen J.; Ansari R.; Aubourg E.; Bareyre P.; Charlot X.; Coutures C.; Ferlet R.; Glicenstein J.F.; Goldman B.; Gould A.; Graff D.; Gros M.; Haissinski J.; Hamadache C.; de Kat J.; Le Guillou L.; Loup C.; Magneville C.; Maurice E.; Maury A.; Moniez M.; Palanque-Delabrouille N.; Perdereau O.; Rahal Y.R.; Rich J.; Spiro M.; Vidal-Madjar A.
Publisher CDS
Publication Year 2009
OpenAccess true
Contact CDS support team <cds-question(at)>
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Physics; Stellar Astronomy