Zhou AlYing1; Liu ZongfLi1; Rodriguez E2
Source Publicationchinesejournalofastronomyandastrophysics
AbstractUV Tri was observed photometrically from 1999 to 2000 at the Xinglong Station of the National Astronomical Observatories, Chinese Academy of Sciences, and was also observed with Stroemgren uvby Hβ filter system at the Sierra Nevada Observatory (Spain) in 2000. From period analyses of the data, three pulsation frequencies, 9.3299 c d^-1, 10.8483 cd^-1 and 3.6035 cd^-1 were obtained. We derived color indices: b-y=0.215, m1=0.169, c1=0.783, and β=2.775. With these indices and some calibrations, we obtain:Mv=2.44, Mbol=2.27, logL/L⊙=0.99, and log Teff=3.875. Evolutionary sequences of stellar models with 1.00-2.00 solar masses, at steps of 0.05M⊙,are computed. Each sequence consists of 220 evolutionary intervals. From a comparison between the observed and calculated physical parameters we conclude that UV Tri is in an early evolutionary phase before the turn-off point.
Document Type期刊论文
2.Instituto de Astrofisica de Andalucia, CSIC, P. O. Box 3004, E-18080 Granada
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhou AlYing,Liu ZongfLi,Rodriguez E. photometricobservationsofthescutistaruvtriangulianditsevolutionarystatus[J]. chinesejournalofastronomyandastrophysics,2002,002(001):59.
APA Zhou AlYing,Liu ZongfLi,&Rodriguez E.(2002).photometricobservationsofthescutistaruvtriangulianditsevolutionarystatus.chinesejournalofastronomyandastrophysics,002(001),59.
MLA Zhou AlYing,et al."photometricobservationsofthescutistaruvtriangulianditsevolutionarystatus".chinesejournalofastronomyandastrophysics 002.001(2002):59.
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