COLOR EXCESSES AND PERIOD-COLOR RELATION OF CLASSICAL CEPHEIDS
نویسندگان
چکیده
منابع مشابه
On the Period-Luminosity-Color Relation of Classical Cepheids
We present the comparison between theoretical and empirical PL relations in V and I bands for the Large Magellanic Cloud. We found that, within the current intrinsic dispersions, theoretical predictions are in remarkable agreement with observational data. We also discuss the PLC relations in (V,B-V) and (V,V-I) as well as the dependence of distance determinations on uncertainties in colors, in ...
متن کاملTheoretical Models for Classical Cepheids : II . Period - Luminosity , Period - Color and Period - Luminosity - Color Relations
We present and discuss theoretical predictions concerning the pulsational properties of Classical Cepheids. Masses and luminosities provided by stellar evolutionary calculations are used as input parameters of nonlinear, nonlocal and time–dependent convective pulsating models and accurate determinations of both the blue and red edge of the instability strip are derived, together with theoretica...
متن کاملNew period - luminosity and period - color relations of classical Cepheids III . Cepheids in SMC
The photometric data for 460 classical, fundamental-mode Cepheids in the SMC with log P > 0.4 measured by Udalski et al. have been analyzed for their period-color (P-C) and period-luminosity (P-L) relations, and for the variation of amplitude across the instability strip in a similar way that was done in Papers I and II of this series. The SMC Cepheids are bluer in (B−V) 0 at a given period tha...
متن کاملNew Period - Luminosity and Period - Color Relations of Classical Cepheids : II . Cepheids in LMC
Photometric data for 593 Cepheids in the LMC, measured by Udalski et al. in the OGLE survey, augmented by 92 longer period Cepheids from other sources, are analyzed for the period-color (P-C) and period-luminosity (P-L) relations, and for the variations of amplitude, light curve shape, and period across the instability strip at constant absolute magnitude. Both the P-C and P-L relations have di...
متن کاملNew Period-Luminosity and Period-Color Relations of Classical Cepheids: I. Cepheids in the Galaxy
321 Galactic fundamental-mode Cepheids with good B,V , and (in most cases) I photometry by Berdnikov et al. (2000) and with homogenized color excesses E(B−V) based on Fernie et al. (1995) are used to determine their period-color (P-C) relation in the range 0.4 < log P ∼ < 1.6. The agreement with colors from different model calculations is good to poor. – Distances of 25 Cepheids in open cluster...
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ژورنال
عنوان ژورنال: Journal of The Korean Astronomical Society
سال: 2010
ISSN: 1225-4614
DOI: 10.5303/jkas.2010.43.5.153