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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 Teff = 7300±200 K, Mv = 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.

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

Crawford, D.L.: 1979, Astronomical Journal 84, 1858.CrossRefGoogle Scholar
Hack, B.: 1978, Astronomy and Astrophysics 63, 273.Google Scholar
Heynderickx, D.: 1990, Astronomy and Astrophysics 232, 79.Google Scholar
Zhiping, Li, Qingquan, Tang, Ming, Cao: 1990, IBVS, 3467.Google Scholar
Zhiping, Li, Shiyang, Jiang, Yanying, Liu, Ming, Cao: 1991, Astronomy and Astrophysics 245, 485.Google Scholar
Meylan, G., Python, M., Hauck, B.: 1989, Astronomy and Astrophysics 90, 83.Google Scholar
Perry, C.L., Olsen, E.H., Crawford, D.L.: 1987, Publications of the ASP 99, 1184.Google Scholar
Philip, G.A., Relyea, L.J.: 1979, Astronomical Journal 84, 1743.Google Scholar
Shi, C.M., Du, B.T., et al.: 1987, Acta Astrophys. Sin. 7, 230.Google Scholar
Slettebak, A., Wright, R.R., Graham, J.A.: 1968, Astronomical Journal 73, 152.Google Scholar