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Recalibration of the Wilson‐Bappu Effect Using the Singly Ionized Magnesium k Line

Frederick Scoville and Jose Mena‐Werth
Publications of the Astronomical Society of the Pacific
Vol. 110, No. 749 (July 1998), pp. 794-803
DOI: 10.1086/316188
Stable URL: http://www.jstor.org/stable/10.1086/316188
Page Count: 10
Subjects: Astronomy
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Recalibration of the Wilson‐Bappu Effect Using the Singly
Ionized Magnesium k Line
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Abstract

ABSTRACT A new calibration of the Wilson‐Bappu effect is presented using data from a survey of the singly ionized magnesium (Mg ii) h and k lines (near 280 nm) taken from the archives of the International Ultraviolet Explorer satellite. Our sample consisted of 94 stars with absolute magnitudes derived from parallaxes reported from Hipparcos. We describe the dependencies of the base widths, peak widths, and full widths at half‐maximum (FWHM) on the fundamental stellar parameters \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $T_{\mathrm{eff}\,}$ \end{document} , metallicity, \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $\mathrm{log}\,g$ \end{document} , and activity.

Notes and References

This item contains 17 references.

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