Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star

PG Beck, TR Bedding, B Mosser, D Stello, RA Garcia, T Kallinger, S Hekker, Yvonne Elsworth, S Frandsen, F Carrier, J De Ridder, C Aerts, TR White, D Huber, MA Dupret, J Montalban, A Miglio, A Noels, William Chaplin, H KjeldsenJ Christensen-Dalsgaard, RL Gilliland, TM Brown, SD Kawaler, S Mathur, JM Jenkins, Andrea Miglio

Research output: Contribution to journalArticle

165 Citations (Scopus)


Stellar interiors are inaccessible through direct observations. For this reason, helioseismologists made use of the Sun’s acoustic oscillation modes to tune models of its structure. The quest to detect modes that probe the solar core has been ongoing for decades. We report the detection of mixed modes penetrating all the way to the core of an evolved star from 320 days of observations with the Kepler satellite. The period spacings of these mixed modes are directly dependent on the density gradient between the core region and the convective envelope.
Original languageEnglish
Pages (from-to)205-205
Number of pages1
Issue number6026
Publication statusPublished - 1 Apr 2011


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