The slope of the RR Lyrae M<sub><nobr>V</nobr></sub>–[Fe/H] relation期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The slope of the RR Lyrae M_V–[Fe/H] relation

Authors:	Fernley Carney Skillen Cacciari & Janes

Institution:	IUE Observatory, Apdo 50727, 28080 Madrid, Spain,;Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27599, USA,;STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA,;Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA

Abstract:	We review the available observational data to show that the slope of the RR Lyrae M_V –Fe/H] relation is 0.18±0.03. The recent claim by Feast that, because of biases, the true slope is much steeper is not justified.

Keywords:	stars: variables: other globular clusters: general