In addition to its search for extrasolar planets, the NASA Kepler mission provides exquisite data on stellar oscillations. We report the detections of oscillations in 500 solar-type stars in the Kepler field of view, an ensemble that is large enough to allow statistical studies of intrinsic stellar properties (such as mass, radius, and age) and to test theories of stellar evolution. We find that the distribution of observed masses of these stars shows intriguing differences to predictions from models of synthetic stellar populations in the Galaxy. Copyright 2011 by the American Association for the Advancement of Science; all rights reserved.
Ensemble asteroseismology of solar-type stars with the NASA kepler mission / Chaplin W.J.; Kjeldsen H.; Christensen-Dalsgaard J.; Basu S.; Miglio A.; Appourchaux T.; Bedding T.R.; Elsworth Y.; Garcia R.A.; Gilliland R.L.; Girardi L.; Houdek G.; Karoff C.; Kawaler S.D.; Metcalfe T.S.; Molenda-Zakowicz J.; Monteiro M.J.P.F.G.; Thompson M.J.; Verner G.A.; Ballot J.; Bonanno A.; Brandao I.M.; Broomhall A.-M.; Bruntt H.; Campante T.L.; Corsaro E.; Creevey O.L.; Dogan G.; Esch L.; Gai N.; Gaulme P.; Hale S.J.; Handberg R.; Hekker S.; Huber D.; Jimenez A.; Mathu S.; Mazumdar A.; Mosser B.; New R.; Pinsonneault M.H.; Pricopi D.; Quirion P.-O.; Regulo C.; Salabert D.; Serenelli A.M.; Aguirre S.V.; Sousa S.G.; Stello D.; Stevens I.R.; Suran M.D.; Uytterhoeven K.; White T.R.; Borucki W.J.; Brown T.M.; Jenkins J.M.; Kinemuchi K.; Van Cleve J.; Klaus T.C.. - In: SCIENCE. - ISSN 0036-8075. - ELETTRONICO. - 332:6026(2011), pp. 213-216. [10.1126/science.1201827]
Ensemble asteroseismology of solar-type stars with the NASA kepler mission
Miglio A.;
2011
Abstract
In addition to its search for extrasolar planets, the NASA Kepler mission provides exquisite data on stellar oscillations. We report the detections of oscillations in 500 solar-type stars in the Kepler field of view, an ensemble that is large enough to allow statistical studies of intrinsic stellar properties (such as mass, radius, and age) and to test theories of stellar evolution. We find that the distribution of observed masses of these stars shows intriguing differences to predictions from models of synthetic stellar populations in the Galaxy. Copyright 2011 by the American Association for the Advancement of Science; all rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
