# TESS Program G09117

Title: Calibrating Asteroseismic Scaling Relations With Totally Eclipsing Binaries From TESS And Gaia

PI: Wrona, Marcin - Villanova University

Type: SMALL

Summary: Asteroseismic scaling relations allow the determination of stellar masses and radii from solar-like oscillations (SLOs), yet their accuracy remains debated due to poorly constrained correction factors. The most rigorous calibration requires benchmark stars with fundamental parameters independently derived from binary dynamics. Currently, only about a dozen such double-lined, totally eclipsing binaries (EBs) with detected SLOs are known. We propose high-cadence TESS observations of 44 totally eclipsing EBs identified through multi-stage filtering as likely SLO hosts. Combined with epoch radial velocities from the upcoming Gaia DR4, TESS photometry will yield precise dynamical masses and radii for direct comparison with asteroseismic estimates, significantly expanding the benchmark sample.


# Sector 108 targets observed (2 min: 6, 20 s: 0)
407686084,96.7094,-23.2516,8.72,G09117
141019807,116.7898,-18.1033,12.27,G09117
259157383,113.5409,-13.0641,11.55,G09117
349318274,114.3764,-19.4104,11.9,G09117
412743856,111.2169,-21.9641,10.3,G09117
50648349,112.6139,-14.9132,10.59,G09117

# Sector 109 targets observed (2 min: 8, 20 s: 0)
407686084,96.7094,-23.2516,8.72,G09117
22641002,108.1426,-36.222,8.86,G09117
412743856,111.2169,-21.9641,10.3,G09117
63579455,105.515,-25.5347,12.27,G09117
11076396,122.2742,-21.8242,11.48,G09117
141019807,116.7898,-18.1033,12.27,G09117
349318274,114.3764,-19.4104,11.9,G09117
1563155,132.0298,-27.8015,10.44,G09117