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19 April 2024 |
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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
; Larry Denneau
; Heather Flewelling
; Thomas W.-S. Holoien
; C. S. Kochanek
; Giuliano Pignata
; Amanda Sickafoose
; Brian Stalder
; K. Z. Stanek
; Todd A. Thompson
; | | Date: |
11 Mar 2020 | | Abstract: | Evolved stars near the tip of the red giant branch (TRGB) show solar-like
oscillations with periods spanning hours to months and amplitudes ranging from
$sim$1 mmag to $sim$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 ($TESS$) mission. We
present an asteroseismic analysis of 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 (APOGEE), and Gaia we demonstrate
that ground-based transient surveys allow accurate distance measurements to
oscillating M giants with a precision of $sim$15$\%$. Using stellar population
synthesis models we predict that ATLAS and ASAS-SN can provide asteroseismic
distances to $sim$2$ imes$10$^{6}$ galactic M giants out to typical distances
of $20-50$ kpc, vastly improving the reach of Gaia and providing critical
constraints for Galactic archaeology and galactic dynamics. | | Source: | arXiv, 2003.5459 | | Services: | Forum | Review | PDF | Favorites | |
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