Kepler Asteroseismology Program: Introduction and First Results

• Autor(es): Gilliland, RL ; Timothy M Brown ; Jorgen Christensen Dalsgaard ; Hans Kjeldsen ; Conny Aerts ; Thierry Appourchaux ; Sarbani Basu ; Timothy R Bedding ; William J Chaplin ; Cunha, MS ; Peter De Cat ; Joris De Ridder ; Joyce A Guzik ; Gerald Handler ; Steven Kawaler ; Laszlo Kiss ; Katrien Kolenberg ; Donald W Kurtz ; Travis S Metcalfe ; Monteiro, MJPFG ; Robert Szabo ; Torben Arentoft ; Luis Balona ; Jonas Debosscher ; Yvonne P Elsworth ; Pierre Olivier Quirion ; Dennis Stello ; Juan C Carlos Suarez ; William J Borucki ; Jon M Jenkins ; David Koch ; Yoji Kondo ; David W Latham ; Jason F Rowe ; Jason H Steffen
• Data: 2010
• Identificador Persistente: https://hdl.handle.net/10216/98950
• Origem: Repositório Aberto da Universidade do Porto
• Assunto(s): Astronomia, Física; Astronomy, Physical sciences
• Tipo de Documento: Artigo científico
• Idioma: Inglês

Descrição

Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observations of normal modes of oscillation. The technical requirements for conducting asteroseismology include ultrahigh precision measured in photometry in parts per million, as well as nearly continuous time series over weeks to years, and cadences rapid enough to sample oscillations with periods as short as a few minutes. We report on results from the first 43 days of observations, in which the unique capabilities of Kepler in providing a revolutionary advance in asteroseismology are already well in evidence. The Kepler asteroseismology program holds intrinsic importance in supporting the core planetary search program through greatly enhanced knowledge of host star properties, and extends well beyond this to rich applications in stellar astrophysics.