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Galactic clusters with associated Cepheid variables. VII. Berkeley 58 and CG Cassiopeiae
David G. Turner, D. Forbes, D. English +6
Photoelectric, photographic, and CCD UBV photometry, spectroscopic observations, and star counts are presented for the open cluster Berkeley 58 to examine a possible association wi…
Rate of Period Change as a Diagnostic of Cepheid Properties
David G. Turner, Mohamed Abdel-Sabour Abdel-Latif, Leonid N. Berdnikov
Rate of period change for a Cepheid is shown to be a parameter that is capable of indicating the instability strip crossing mode for individual objects, and, in conjuncti…
Determination of Cepheid parameters by light-curve template-fitting
N. R. Tanvir, M. A. Hendry, A. Watkins +3
We describe techniques to characterise the light-curves of regular variable stars by applying principal component analysis (PCA) to a training set of high quality data, and to fit…
Hipparcos red stars in the HpV_{T2} and VI_C systems
I. Platais, D. Pourbaix, A. Jorissen +6
For Hipparcos M, S, and C spectral type stars, we provide calibrated instantaneous (epoch) Cousins color indices using newly derived photometry. Three new sets of…