# TESS Program G022069 Title: The TESS Coeval Degenerates Survey, Cycle 2 PI: Hermes, James - Boston University Type: SMALL Summary: Ages are an incredibly important attribute of an isolated star. However, ages of isolated cool dwarfs are notoriously difficult to measure. Here we propose a program to study with TESS a sample of 1100 bright stars with coeval white dwarf (WD) companions in wide, common-proper-motion binaries. Hundreds of the WD companions in our systems are cooler than 6000 K, with total ages exceeding 5 Gyr -- very few field stars bright enough for TESS have such old, well-constrained ages (nearby, old clusters such as Ruprect 147 and M67 are not older than 4 Gyr). With existing observations and techniques, we can estimate the total ages of these WDs to better than 30% across all ages present in our Galaxy. This dataset will be a benchmark sample to constrain gyrochronology, age-activity relations, and . # Sector 014 targets observed (41) 16620655,307.7625,39.5803,11.98,G022069;G022198 121608344,288.4079,37.7747,7.8,G022069;G022103 42205324,286.2946,35.7797,13.78,G022069 435811717,297.6751,24.7526,11.72,G022069 288554066,301.3455,23.8355,13.56,G022069 452613228,310.4258,26.5107,11.6,G022069 233546325,281.3793,60.4903,10.58,G022069 275690559,286.7064,61.0975,8.91,G022069 376996854,284.6981,57.7864,8.87,G022069 165552714,266.7424,55.1475,8.88,G022069 353819174,270.5801,57.3114,11.69,G022069 362215490,275.302,50.5653,8.54,G022069 120251682,284.3697,40.5939,13.52,G022028;G022069 121462259,287.9409,41.4956,8.81,G022069;G022161 123199890,280.742,42.4735,11.05,G022069 399954030,287.583,49.1855,8.73,G022069 270860211,294.0399,43.7688,8.51,G022069 198162530,243.9062,61.927,12.19,G022069;G022198 219778464,263.7099,64.8026,11.43,G022069 219857965,257.4662,68.3352,10.28,G022069;G022198 237238066,297.906,76.1202,13.28,G022069;G022198 341873878,275.2051,74.8948,10.56,G022069;G022198 233010801,248.5565,75.9829,8.79,G022069 288735205,282.1001,79.2566,11.15,G022069 441736266,258.6767,74.0885,12.63,G022069;G022198 441788938,262.4385,74.4978,10.67,G022069 160534539,241.0002,73.1489,6.38,G022069 230078093,245.0218,68.4159,10.77,G022069 232540641,227.9996,69.8711,7.78,G022069 232983096,241.5189,70.362,12.45,G022198;G022069 237102071,240.7043,67.4898,13.36,G022069 148932514,188.9706,69.6574,12.03,G022069 142588823,168.1503,77.2032,9.47,G022069 142785684,154.5757,76.6741,13.9,G022028;G022069 154923851,202.5034,86.3256,9.03,G022069 219437318,206.633,77.2237,10.63,G022069 446168743,201.4332,81.1596,11.04,G022069 103632677,152.0347,66.2943,11.08,G022069 154455009,154.7548,72.3846,8.68,G022069 86375106,144.2893,65.1295,15.18,G022077;G022028;G022217;G022069 99868263,166.8498,63.1611,9.75,G022069 # Sector 015 targets observed (29) 136513953,317.4589,42.9556,13.19,G022069 296887457,311.6498,45.9871,14.11,G022069 16620655,307.7625,39.5803,11.98,G022069;G022198 452613228,310.4258,26.5107,11.6,G022069 76780172,317.9595,30.4734,13.67,G022069 239638976,333.5651,32.4494,9.07,G022069 419711461,325.1903,36.5748,10.31,G022069 233546325,281.3793,60.4903,10.58,G022069 275690559,286.7064,61.0975,8.91,G022069 376996854,284.6981,57.7864,8.87,G022069 270860211,294.04,43.7688,8.51,G022069 469430747,307.555,55.3355,14.82,G022069 165552714,266.7424,55.1475,8.88,G022069 219778464,263.7099,64.8026,11.43,G022069 353819174,270.5801,57.3114,11.69,G022069 341873878,275.2051,74.8948,10.56,G022069;G022198 441788938,262.4385,74.4978,10.67,G022069 160534539,241.0002,73.1489,6.38,G022069 219437318,206.633,77.2237,10.63,G022069 232540641,227.9996,69.8711,7.78,G022069 232983096,241.5189,70.362,12.45,G022198;G022069 233010801,248.5565,75.9829,8.79,G022069 198162530,243.9062,61.927,12.19,G022069;G022198 230078093,245.0218,68.4159,10.77,G022069 237102071,240.7043,67.4898,13.36,G022069 298109519,205.5544,61.7607,12.2,G022069 148932514,188.9706,69.6574,12.03,G022069 355895923,190.8226,61.2471,10.33,G022069 286924596,203.7729,48.7204,8.86,G022069 # Sector 016 targets observed (42) 24929356,350.2872,50.3063,12.28,G022069 249781147,339.5854,52.3488,12.68,G022069 315301271,347.495,55.1134,12.5,G022069 329759640,332.9556,56.8401,4.76,G022103;G022069;G022133;G022032;G022171;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 430848926,333.8986,49.4677,12.4,G022069 136513953,317.4589,42.9556,13.19,G022069 420116962,332.1697,45.7425,5.41,G022173;G022038;G022103;G022069 455677982,332.8398,45.552,11.93,G022028;G022069 239638976,333.5651,32.4494,9.07,G022069 419711461,325.1903,36.5748,10.31,G022069 128821589,340.4532,40.4723,11.48,G022069 129562188,344.1662,37.5914,9.25,G022069 259137762,350.6145,39.7521,9.58,G022069 237238066,297.906,76.1202,13.28,G022069;G022198 387449516,311.4419,69.0665,9.98,G022069 233546325,281.3793,60.4903,10.58,G022069 275690559,286.7064,61.0975,8.91,G022069 376996854,284.6981,57.7864,8.87,G022069 295642548,303.6287,52.4144,15.57,G022217;G022069 296887457,311.6499,45.9871,14.11,G022069 469430747,307.555,55.3355,14.82,G022069 165552714,266.7424,55.1475,8.88,G022069 219778464,263.7099,64.8026,11.43,G022069 353819174,270.5801,57.3114,11.69,G022069 219857965,257.4662,68.3352,10.28,G022069;G022198 233010801,248.5565,75.9829,8.79,G022069 341873878,275.2051,74.8948,10.56,G022069;G022198 441788938,262.4385,74.4978,10.67,G022069 160534539,241.0002,73.1489,6.38,G022069 230078093,245.0218,68.4159,10.77,G022069 232540641,227.9996,69.8711,7.78,G022069 232983096,241.5189,70.362,12.45,G022198;G022069 237102071,240.7043,67.4898,13.36,G022069 198162530,243.9062,61.927,12.19,G022069;G022198 199574208,248.5734,57.1688,10.16,G022076;G022062;G022039;G022145;G022240;G022069 159784292,235.227,52.8788,14.19,G022217;G022069 235559033,232.4262,48.604,8.91,G022069 444063655,234.6211,52.1973,12.68,G022069 298109519,205.5544,61.7607,12.2,G022069 219823668,204.0077,48.4795,13.54,G022028;G022069;G022077;G022017 286924596,203.7729,48.7204,8.86,G022069 288404730,202.1126,46.5015,9.79,G022069 # Sector 017 targets observed (38) 125991044,8.3988,35.1332,10.12,G022069 22499338,2.4115,31.1455,11.4,G022069 437752575,5.317,25.5243,8.51,G022069 437764274,6.1747,27.684,11.57,G022069 242841582,8.9121,20.1544,10.9,G022069;G022198 303320389,12.181,13.5559,9.9,G022069 381244025,18.982,15.5801,11.06,G022069 306307421,31.2777,19.1875,8.4,G022069 88815674,27.0921,17.8724,10.92,G022069 91373945,28.71,21.3061,8.45,G022069;G022062 202789548,8.1489,52.0364,11.93,G022069 363680769,3.2031,54.6659,11.66,G022069;G022198 419524194,8.4208,61.8732,12.0,G022069 177055590,355.9636,47.4264,13.0,G022069 315301271,347.495,55.1134,12.5,G022069 354527972,358.2334,36.9538,6.0,G022103;G022069 12788720,343.0009,60.3388,13.07,G022069 249781147,339.5854,52.3488,12.68,G022069 329759640,332.9556,56.8401,4.76,G022103;G022069;G022133;G022032;G022171;G_NONSTANDARDMASK;G_NOPHOTOMETRY;G_SPECIAL_APERTURE_25_25 469841672,329.9218,58.9735,13.74,G022069 422561075,346.4476,71.6385,13.29,G022069 387449516,311.4419,69.0665,9.98,G022069 365829943,320.7964,64.2384,12.57,G022069 233546325,281.3793,60.4903,10.58,G022069 275690559,286.7064,61.0975,8.91,G022069 376996854,284.6981,57.7864,8.87,G022069 237238066,297.906,76.1202,13.28,G022069;G022198 288735205,282.1001,79.2566,11.15,G022069 341873878,275.2051,74.8948,10.56,G022069;G022198 441788938,262.4385,74.4978,10.67,G022069 160534539,241.0002,73.1489,6.38,G022069 198162530,243.9061,61.9271,12.19,G022069;G022198 219857965,257.4662,68.3353,10.28,G022069;G022198 230078093,245.0218,68.4159,10.77,G022069 232983096,241.5189,70.362,12.45,G022198;G022069 237102071,240.7043,67.4898,13.36,G022069 165552714,266.7424,55.1475,8.88,G022069 353819174,270.5801,57.3114,11.69,G022069