Determining the Ages of Nearby A-Stars with Long-Baseline Interferometry

Jeremy Jones, R. J. White, T. Boyajian, G. Schaefer, E. Baines, M. Ireland, Jennifer Patience

Research output: Contribution to journalArticlepeer-review


We determine the age of 7 stars in the Ursa Major moving group using a novel method that models the fundamental parameters of rapidly rotating A-stars based on interferometric observations and literature photometry and compares these parameters (namely, radius, luminosity, and rotation velocity) with evolution models that account for rotation. We find these stars to be coeval, thus providing an age estimate for the moving group and validating this technique. With this technique validated, we determine the age of the rapidly rotating, directly imaged planet host star, κ Andromedae.

Original languageEnglish (US)
Pages (from-to)119-120
Number of pages2
JournalProceedings of the International Astronomical Union
StatePublished - 2015


  • stars: early-type
  • stars: evolution
  • stars: individual (κ And)
  • stars: rotation
  • techniques: interferometric

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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