Intrinsic Color Indices of Stars Obtained from 2MASS Photometry

Intrinsic Color Indices of Stars Obtained from 2MASS Photometry

This paper is based on JHK sub(s) magnitudes of 8 842 different spectral types stars obtained from 2MASS photometry. The mean intrinsic colors have been derived with the aid of two-color diagrams for stars of luminosity classes I-II, III and IV-V. The present results are based on samples of every Sp...

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Veröffentlicht in:Acta astronomica 2014-01, Vol.64 (3), p.261-275
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description This paper is based on JHK sub(s) magnitudes of 8 842 different spectral types stars obtained from 2MASS photometry. The mean intrinsic colors have been derived with the aid of two-color diagrams for stars of luminosity classes I-II, III and IV-V. The present results are based on samples of every Sp/L, reasonably larger than any other previously used for determining infrared colors. The smoothed infrared colors are compared with those obtained by other authors. Examples of several two-color diagrams and plots of the observed and smoothed intrinsic colors vs. spectral types of luminosity classes I-II, III and IV-V are presented. Generally the newly determined infrared intrinsic colors (V-J) sub(0), (V-H) sub(0) and (V-K sub(s)) sub(0) differ significantly from those available in literature.
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title Intrinsic Color Indices of Stars Obtained from 2MASS Photometry
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