Corpus ID: 56465784

Young alpha-enriched giant stars in the solar neighbourhood

  title={Young alpha-enriched giant stars in the solar neighbourhood},
  author={Marie Martig and Hans-Walter Rix and V{\'i}ctor Silva Aguirre and Saskia Hekker and Beno{\^i}t Mosser and Yvonne Elsworth and Jo Bovy and Dennis Stello and Friedrich Anders and Rafael A. Garc'ia and Jamie Tayar and Tha{\'i}se S. Rodrigues and Sarbani Basu and Ricardo Carrera and Tugdual Ceillier and William J. Chaplin and Cristina Chiappini and Peter M. Frinchaboy and Domingo An'ibal Garc'ia-Hern'andez and Fred R. Hearty and Jon A. Holtzman and Jennifer A. Johnson and Steven R. Majewski and Savita Mathur and Sz. M'esz'aros and Andrea Miglio and David L. Nidever and Kaike Pan and Marc H. Pinsonneault and Ricardo P. Schiavon and Donald P. Schneider and Aldo Serenelli and Matthew D. Shetrone and Olga Zamora},
  journal={arXiv: Astrophysics of Galaxies},
We derive age constraints for 1639 red giants in the APOKASC sample for which seismic parameters from Kepler, as well as effective temperatures, metallicities and [alpha/Fe] values from APOGEE DR12 are available. We investigate the relation between age and chemical abundances for these stars, using a simple and robust approach to obtain ages. We first derive stellar masses using standard seismic scaling relations, then determine the maximum possible age for each star as function of its mass and… Expand
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