# TESS Program G04180

Title: Asteroseismic Properties Of Spectropolarimetric Benchmark Stars

PI: Metcalfe, Travis - White Dwarf Research Corporation

Type: SMALL

Summary: Sun-like stars are born with relatively rapid rotation and strong magnetic fields. Through a process known as magnetic braking, the rotation slows over time as stellar winds gradually remove angular momentum from the system. Recent observations suggest that the efficiency of magnetic braking may decrease dramatically in stars near the middle of their main-sequence lifetimes. One hypothesis to explain these observations is a shift in magnetic complexity from predominantly larger to smaller spatial scales. By combining asteroseismology from TESS with ground-based spectropolarimetry, we propose to constrain the timing and duration of the shift in magnetic complexity for a carefully selected sample of stars that are near or beyond the middle of their main-sequence lifetimes.


# Sector 041 targets observed (2 min: 2, 20 s: 2)
27533327,295.4653,50.5166,5.63,G04176;G04059;G04104;G04180;G04098;20SECONDTARGET
27533341,295.4526,50.5241,5.39,G04104;G04176;G04059;G04180;20SECONDTARGET

# Sector 045 targets observed (2 min: 1, 20 s: 1)
219030951,172.9352,14.3633,5.74,G04104;G04180;20SECONDTARGET

# Sector 049 targets observed (2 min: 1, 20 s: 1)
219030951,172.9352,14.3633,5.74,G04104;G04180;20SECONDTARGET

# Sector 051 targets observed (2 min: 4, 20 s: 0)
296740796,236.6095,7.3526,3.87,G04180;G04211;G04103
461297684,229.8307,1.7622,4.76,G04180;G04103;G04125
446436963,215.8151,1.2386,5.65,G04180;G04211;G04191
458494003,240.2596,33.2987,4.83,G04180;G04098;G04103

# Sector 054 targets observed (2 min: 2, 20 s: 2)
27533327,295.4652,50.5165,5.63,G04176;G04059;G04104;G04180;G04098;20SECONDTARGET
27533341,295.4525,50.5241,5.39,G04104;G04176;G04059;G04180;20SECONDTARGET

# Sector 055 targets observed (2 min: 2, 20 s: 2)
27533327,295.4652,50.5165,5.63,G04176;G04059;G04104;G04180;G04098;20SECONDTARGET
27533341,295.4525,50.5241,5.39,G04104;G04176;G04059;G04180;20SECONDTARGET