Carina project IX: UBVI data of Carina variables : J/ApJ/814/71

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Authors : Coppola G. orcid , Marconi M., Stetson P.B. (hide) , Marconi M., Stetson P.B. et..al

VizieR DOI : 10.26093/cds/vizier.18140071
Bibcode : 2015ApJ...814...71C (ADS) (Simbad) (Objects)
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CDS Keywords : Stars, variable; Photometry, UBVRI
UAT : Variable stars, Infrared photometry, Optical astronomy, Broad band photometry

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Inserted into VizieR : 23-Jan-2017
Last modification : 12-Sep-2017

The Carina project IX on hydrogen and helium burning variables. (2015)

Keywords : galaxies individual: Carina; Local Group; stars: distances; stars: oscillations, including pulsations; stars: variables: RR Lyrae

Abstract:We present new multiband (UBVI) time-series data of helium burning variables in the Carina dwarf spheroidal galaxy. The current sample includes 92 RR Lyrae --six of them are new identifications-- and 20 Anomalous Cepheids, one of which is new identification. The analysis of the Bailey diagram shows that the luminosity amplitude of the first overtone component in double-mode variables is located along the long-period tail of regular first overtone variables, while the fundamental component is located along the short-period tail of regular fundamental variables. This evidence further supports the transitional nature of these objects. Moreover, the distribution of Carina double-mode variables in the Petersen diagram (P_1_/P_0_ versus ...(more)
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American Astronomical Society policies
The photometric catalog adopted in this investigation is an extension of the data set discussed by Coppola+ (Paper VI; 2013ApJ...775....6C). This included 4474 CCD images in the UBVRI photometric bands obtained with the CTIO 4m and 1.5m telescopes, the ESO 3.6m NTT, the MPI/ESO 2.2m telescope, and the 8m ESO VLT during the period 1992 December through 2008 September. Here we add 2028 CCD images in the same photometric bands obtained with the same telescopes during the period 1998 October through 2012 February.
Marcella Marconi (oacn.inaf.it) for U-band magnitudes in table 4. Individual U-band magnitudes for V41 could not be retrieved.

                


                

                    

                


                

                    

                


                

                    
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