Galactic and LMC Cepheids Fourier parameters

DOI

We present a light-curve analysis of fundamental-mode Galactic and Large Magellanic Cloud (LMC) Cepheids based on the Fourier decomposition technique. We have compiled light-curve data for Galactic and LMC Cepheids in optical (VI), near-infrared (JHKs) and mid-infrared (3.6 and 4.5{mu}m) bands from the literature and determined the variation of their Fourier parameters as a function of period and wavelength. We observed a decrease in Fourier amplitude parameters and an increase in Fourier phase parameters with increasing wavelengths at a given period. We also found a decrease in the skewness and acuteness parameters as a function of wavelength at a fixed period. We applied a binning method to analyse the progression of the mean Fourier parameters with period and wavelength. We found that for periods longer than about 20d, the values of the Fourier amplitude parameters increase sharply for shorter wavelengths as compared to wavelengths longer than the J band. We observed the variation of the Hertzsprung progression with wavelength. The central period of the Hertzsprung progression was found to increase with wavelength in the case of the Fourier amplitude parameters and decrease with increasing wavelength in the case of phase parameters. We also observed a small variation of the central period of the progression between the Galaxy and LMC, presumably related to metallicity effects. These results will provide useful constraints for stellar pulsation codes that incorporate stellar atmosphere models to produce Cepheid light curves in various bands.

Cone search capability for table J/MNRAS/447/3342/table2a (*V band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2b (*I band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2c (*J band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2d (*H band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2e (*Ks band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2f (*3.6um band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table2g (*4.5um band Fourier parameters, Galactic Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3a (*V band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3b (*I band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3c (*J band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3d (*H band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3e (*Ks band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3f (*3.6um band Fourier parameters, LMC Cepheid)

Cone search capability for table J/MNRAS/447/3342/table3g (*4.5um band Fourier parameters, LMC Cepheid)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74473342
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/447/3342
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/447/3342
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/447/3342
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/447/3342
Provenance
Creator Bhardwaj A.; Kanbur S.M.; Singh H.P.; Macri L.M.; Ngeow C.-C.
Publisher CDS
Publication Year 2017
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy