Beyond gaia: Asteroseismic distances of m giants using ground-based transient surveys

Connor Auge, Daniel Huber, Aren Heinze, B. J. Shappee, John Tonry, Sukanya Chakrabarti, Robyn E. Sanderson, Robyn E. Sanderson, Larry Denneau, Heather Flewelling, Thomas W.S. Holoien, C. S. Kochanek, C. S. Kochanek, Giuliano Pignata, Giuliano Pignata, Amanda Sickafoose, Amanda Sickafoose, Brian Stalder, K. Z. Stanek, K. Z. StanekDennis Stello, Dennis Stello, Dennis Stello, Todd A. Thompson, Todd A. Thompson

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Evolved stars near the tip of the red giant branch show solar-like oscillations with periods spanning hours to months and amplitudes ranging from ∼1 mmag to ∼100 mmag. The systematic detection of the resulting photometric variations with ground-based telescopes would enable the application of asteroseismology to a much larger and more distant sample of stars than is currently accessible with space-based telescopes such as Kepler or the ongoing Transiting Exoplanet Survey Satellite mission. We present an asteroseismic analysis of 493 M giants using data from two ground-based surveys: the Asteroid Terrestrial-impact Last Alert System (ATLAS) and the All-Sky Automated Survey for Supernovae (ASAS-SN). By comparing the extracted frequencies with constraints from Kepler, the Sloan Digital Sky Survey Apache Point Observatory Galaxy Evolution Experiment, and Gaia we demonstrate that ground-based transient surveys allow accurate distance measurements to oscillating M giants with a precision of ∼15%. Using stellar population synthesis models we predict that ATLAS and ASAS-SN can provide asteroseismic distances to ∼2 106 galactic M giants out to typical distances of 20-50 kpc, vastly improving the reach of Gaia and providing critical constraints for Galactic archeology and galactic dynamics.

Original languageEnglish
Article number18
JournalAstronomical Journal
Issue number1
Publication statusPublished - Jul 2020

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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