# TESS Program G08162

Title: An Order-Of-Magnitude Increase In "Holy Grail" Calibrators: Doubly Oscillating Binaries Pre-Screened With Gaia

PI: Joyce, Meridith - University Of Wyoming

Type: SMALL

Summary: We propose to obtain a mix of 20-s cadence and FFIs for 533 binary systems likely to host detectable oscillations in both components, selected with Gaia. We will combine asteroseismic parameters (nu max, delta nu) extracted from these images with luminosities, distances, and temperatures to obtain asteroseismic masses. Combined with XP/gaia-xgboost metallicities, these masses will complete the set of constraints needed to calibrate isochrones. Such systems are rare: this campaign will yield a more than order-of-magnitude increase in the number of "holy grail" targets whose components share an age but have two different masses. Such targets are capable of discerning between physical assumptions in isochrones, ultimately addressing the over-estimation of stellar ages from these models.


# Sector 097 targets observed (2 min: 10, 20 s: 0)
129781461,36.1653,-37.1411,9.98,G08162
632038199,31.0749,-33.157,9.84,G08162
65344233,39.1944,-25.7024,9.63,G08162
144103139,59.1158,-42.6255,9.54,G08162
301051477,49.9767,-45.2362,10.56,G08162
220413105,70.8474,-54.0993,10.25,G08162
149423305,84.4911,-61.4928,8.01,G08162
220389296,67.9828,-59.875,9.28,G08119;G08143;G08158;G08162
25118797,61.9398,-69.0526,9.29,G08162
272466542,120.5775,-74.7891,9.4,G08162

# Sector 098 targets observed (2 min: 1, 20 s: 0)
220389296,67.9828,-59.875,9.28,G08119;G08143;G08158;G08162

# Sector 099 targets observed (2 min: 2, 20 s: 1)
118427067,129.668,-19.7369,4.56,G08162;20SECONDTARGET
42603984,228.4968,-58.6214,9.34,G08119;G08162