Search for Evolutionary Changes in the Period of the Classical Cepheid CE Pup View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-06

AUTHORS

L. N. Berdnikov

ABSTRACT

The reduction of all the available photometry for the Cepheid CE Pup has allowed its \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$O-C$$\end{document} diagram spanning a time interval of 128 years to be constructed. This has made it possible for the first time to calculate the rate of evolutionary increase in the period, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$dP/dt=+155.3(\pm{13.1})$$\end{document} s yr\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${}^{-1}$$\end{document}, in agreement the results of model calculations for the third crossing of the instability strip. The pulsation stability test proposed by Lombard and Koen confirmed that the evolutionary change in the period is real. More... »

PAGES

420-429

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1063773721060025

DOI

http://dx.doi.org/10.1134/s1063773721060025

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1142134915


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