Poster abstract details
Asteroseismology of the solar twin 18 Sco: first results
Michaël Bazot, Torben Arentoft, Martin Asplund, Tim Bedding, Tiago Campante, Hervé Carfantan, Matthieu Castro, Bill Chaplin, Jørgen Christensen-Dalsgaard, Jose Dias do Nascimento, Boris Dintrans, Yvonne Elsworth, Michael Ireland, Hans Kjeldsen, Jorge Meléndez, Travis Metcalfe, Mario Monteiro, Pascal Petit, Nuno Santos, Sergio Sousa, Sylvie Théado, Sylvie Vauclair
Abstract
Solar twins are generating a growing interest. It is possible when studying them to address particular questions concerning the very nature of the Sun. This has culminated with the interrogation: "Is the Sun a Sun-Like Star?" (Gustafsson 1998,2008). So far these statistical studies used the atmospheric parameters of solar twins to look for any particular behavior of the Sun. Nowadays, asteroseismology offers first opportunities for glimpses at their internal structure. A first multi-site campaign on the high-resolution spectrographs HARPS and SOPHIE has been carried on. We present here the results from this first run.