Total to Selective Extinction Ratios and Visual Extinctions from Ultraviolet Data

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dc.creatorGeminale, Anna
dc.creatorPopowski, Piotr
dc.date2004-09-21
dc.date.accessioned2026-07-07T02:14:42Z
dc.date.available2026-07-07T02:14:42Z
dc.descriptionWe present determinations of the total to selective extinction ratio R_V and visual extinction A_V values for Milky Way stars using ultraviolet color excesses. We extend the analysis of Gnacinski and Sikorski (1999) by using non-equal weights derived from observational errors. We present a detailed discussion of various statistical errors. In addition, we estimate the level of systematic errors by considering different normalization of the extinction curve adopted by Wegner (2002). Our catalog of 782 R_V and A_V values and their errors is available in the electronic form on the World Wide Web.
dc.description20 pages, 7 figures, submitted to Acta Astronomica
dc.identifierhttps://arxiv.org/abs/astro-ph/0409509
dc.identifierhttp://arxiv.org/abs/astro-ph/0409509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8216
dc.subjectAstrophysics
dc.titleTotal to Selective Extinction Ratios and Visual Extinctions from Ultraviolet Data
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