Determining distances using asteroseismic methods

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Silva Aguirre, V (Autor) Outra; Casagrande, L (Autor) Outra; Basu, S (Autor) Outra; Campante, TL (Autor) Outra; Chaplin, WJ (Autor) Outra; Huber, D (Autor) Outra; Miglio, A (Autor) Outra; Serenelli, AM (Autor) Outra; KASC WG, (Autor) Outra

Revista

Título: Astronomische Nachrichten

Vol. 334

Páginas: 22-25

ISSN: 0004-6337

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-006-EE9

DOI: 10.1002/asna.201211774

Abstract (EN): Asteroseismology has been extremely successful in determining the properties of stars in different evolutionary stages with a remarkable level of precision. However, to fully exploit its potential, robust methods for estimating stellar parameters are required and independent verification of the results is needed. In this talk, I present a new technique developed to obtain stellar properties by coupling asteroseismic analysis with the infrared flux method. Using two global seismic observables and multi-band photometry, the technique determines masses, radii, effective temperatures, bolometric fluxes, and thus distances for field stars in a self-consistent manner. Applying our method to a sample of solar-like oscillators in the Kepler field that have accurate Hipparcos parallaxes, we find agreement in our distance determinations to better than 5%. Comparison with measurements of spectroscopic effective temperatures and interferometric radii also validate our results, and show that our technique can be applied to stars evolved beyond the main-sequence phase. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4