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Physical Characters of HD 93044 *

Published online by Cambridge University Press:  12 April 2016

Li Zhiping
Li Zhiping*
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China

Abstract

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The measurements of uvby Hβ of HD 93044 were obtained in April 1991. and the observational results that the star locates nearly in the middle of δ Scuti instability strip with somewhat deviation to red edge. According to Crawford (1979) and Philip’s (1979) calibrations, the effective temperature, absolute visual magnitude and surface gravity are obtained to be T eff = 7300±200 K, M v = l.m33±0.39 and logg = 3.7±0.15, respectively. The observational results of Δmi = 0.01 give an estimate of [Fe/H] = —0.003 ± 0.18, so the opinion of metallic deficient is not supported obviously. The observations show the reddening index E(b — y) to be 0.014 which is 1.4 times as large as the standard deviation of Crawford’s (1979) statistics.

Information

Type
II. Observational Facts
Information
International Astronomical Union Colloquium , Volume 134: Nonlinear Phenomena in Stellar Variability , 1993 , pp. 193 - 195
Copyright
Copyright © Kluwer 1993

Footnotes

*

Project supported by Young Foundation of Beijing Astronomical Observatory, China

References

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