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MKJ and MSS Classification of Solar-Type Stars Within 100 Parsecs of the Sun: Preliminary Results

Published online by Cambridge University Press:  04 August 2017

M. Fracassini ,
L. E. Pasinetti ,
M. Borella  and
A. Pasinetti
M. Fracassini
Affiliation:
Physics Department, University of Milan
L. E. Pasinetti
Affiliation:
Physics Department, University of Milan
M. Borella
Affiliation:
Physics Department, University of Milan
A. Pasinetti
Affiliation:
CERN, Geneva

Abstract

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A study of the distribution of spectral types of Solar Type Stars (STS) in the revised MKJ and MSS classifications is made on 3919 F8-K3 HD spectral-type stars brighter than mv=10. By means of the solar color indices U-B and B-V 697 STS were selected. The spectral types G3V and G5V have the highest percentages in MSS and MKJ, respectively, confirming statistically the results published by Keenan and Pitts (1980) and by Hardorp (1982). The distribution of the color indices U-B and B-V in the revised G2V spectral type shows that these are good selection criteria for STS and are in the range 0.06 ≤ U-B ≤ 0.10 and 0.58 ≤ B-V ≤ 0.65.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 111: Calibration of Fundamental Stellar Quantities , 1985 , pp. 407 - 410
Copyright
Copyright © Reidel 1985 

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