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Title: The LMC distance modulus from Hipparcos RR-Lyrae and classical Cepheid data
Author: Luri Carrascoso, Xavier
Gómez, A. E.
Torra Roca, Jorge
Figueras Siñol, Francesca
Menessier, M. O.
Keywords: Astrometria
Issue Date: 15-May-1998
Publisher: EDP Sciences
Abstract: The LM method \cite{luri96}, designed to exploit the Hipparcos data to obtain luminosity calibrations, is applied to derive luminosity calibrations for RR Lyrae and classical Cepheids. From these calibrations the distance to the Large Magellanic Cloud (LMC) is estimated. The distance moduli provided by the two calibrations are in good agreement, giving a value of ~ 18.3(m) , while several previous calibrations using Hipparcos data provided inconsistent results between both types of stars. This result suggest that the Hubble constant should have a value of H_0 ~ 79 km s(-1) Mpc(-1) .
Note: Reproducció del document publicat a:
It is part of: Astronomy & Astrophysics, 1998, vol. 335, p. L81
ISSN: 0004-6361
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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