# TESS Program G022246 Title: Know Thy Halo Stars - Know Thy Halo Planets PI: Wang, Ji - Ohio State University Type: SMALL Summary: Metallicity plays a critical role in physical processes in stellar interiors, surfaces, and evolution. Equally important, metallicity also regulates planet formation. However, certain aspects of stellar physics and planet formation have never been tested at extremely low metallicity ([Fe/H]$<$-1). Halo stars---as the first generation of stars in the Milky Way--are metal-poor, providing an excellent low-metallicity laboratory for stellar physics and planet formation. Here, we propose to (1) study a ``golden" sample of halo stars---for which we will have TESS asteroseismology data---to establish an empirical relationship between photometric variability and surface gravity, i.e., a ``flicker" method in the metal-poor regime; (2) embark on a search for transiting planetary systems with the lo. # Sector 016 targets observed (12) 173927668,350.4253,42.2378,12.39,G022246 161725619,236.8237,54.7127,12.31,G022246 155914739,221.1857,53.2913,11.38,G022246;G022232 161029755,223.2926,48.2452,10.41,G022246 161045751,223.6335,48.6046,11.43,G022246;G022232 165762922,232.0912,56.671,11.01,G022246;G022232 393893607,198.4622,45.2616,10.7,G022246 157988557,215.5561,43.3886,12.55,G022246 158023114,216.5997,42.2131,12.09,G022246 198156928,211.7381,45.9785,12.47,G022246 27350400,213.687,41.8226,12.88,G022246 393961551,212.1052,47.1859,9.04,G022246;G022103 # Sector 017 targets observed (3) 18153046,21.8488,26.8431,9.14,G022246;G022103 173927668,350.4253,42.2378,12.39,G022246 188664960,259.6389,53.0644,9.53,G022246;G022103 # Sector 018 targets observed (2) 202872681,36.7082,44.9627,8.39,G022246;G022103 94280898,58.0437,32.0084,8.26,G022246;G022103 # Sector 020 targets observed (9) 252973376,120.6343,50.6993,12.22,G022246 252986253,122.1352,49.0039,12.1,G022246 355105303,121.1846,46.9959,11.88,G022246;G022232 9170172,117.0422,38.9732,10.15,G022246 88564693,106.9001,62.2051,8.63,G022246;G022103 252974540,120.8665,53.0822,12.6,G022246 252998039,123.2497,50.9254,12.83,G022246 459755478,133.5992,56.1737,15.04,G022246 188664960,259.6389,53.0644,9.53,G022246;G022103 # Sector 021 targets observed (10) 8117882,154.8058,40.3875,11.69,G022246;G022232 21402830,134.5459,40.6549,11.97,G022246 23970515,147.3777,44.2876,10.46,G022246 126322620,135.1967,27.4668,13.06,G022246 289680124,144.5789,48.444,12.48,G022246 150265591,159.961,42.1502,12.61,G022246;G022205 252803372,166.4027,44.9632,12.98,G022246 392348918,155.75,44.7547,13.03,G022246;G022250 406757461,156.6079,46.5175,12.44,G022246 458422669,170.981,48.1788,12.69,G022246 # Sector 022 targets observed (13) 159507943,168.6327,23.5517,10.9,G022246 3802923,169.3569,22.1666,11.97,G022246 386970141,173.3396,21.5624,11.31,G022246 393893607,198.4622,45.2616,10.7,G022246 416020999,193.4157,42.6352,12.14,G022246 138180488,183.1841,45.7576,12.54,G022246 156373789,168.2678,42.9388,11.91,G022246 458422669,170.981,48.1788,12.69,G022246 150396012,194.1105,57.6003,8.29,G022246 155914739,221.1857,53.2913,11.38,G022246;G022232 393961551,212.1052,47.1859,9.04,G022246;G022103 161725619,236.8237,54.7127,12.31,G022246 165762922,232.0911,56.671,11.01,G022246;G022232 # Sector 023 targets observed (23) 285170698,198.7661,16.7299,13.0,G022246 359122805,194.6491,25.7721,11.28,G022246 158023114,216.5997,42.2131,12.09,G022246 157988557,215.556,43.3886,12.55,G022246 198156928,211.7381,45.9785,12.47,G022246 27350400,213.687,41.8226,12.88,G022246 159201571,204.9681,27.8388,12.63,G022246 357345105,195.3274,28.7377,12.45,G022246 368078442,202.1179,27.1495,12.29,G022246 368113530,202.5967,27.6427,8.52,G022246;G022103 373729036,193.4029,29.0215,11.62,G022246 155914739,221.1857,53.2913,11.38,G022246;G022232 393961551,212.1052,47.1859,9.04,G022246;G022103 116414053,232.1406,45.3368,11.91,G022246 150436647,226.1879,43.5954,12.03,G022246 156074438,237.2937,45.6826,12.29,G022246 157419750,238.9605,44.7365,11.79,G022246 161029755,223.2926,48.2452,10.41,G022246 161045751,223.6335,48.6046,11.43,G022246;G022232 161725619,236.8237,54.7127,12.31,G022246 162556700,243.7378,49.7672,10.48,G022246;G022062 165762922,232.0911,56.671,11.01,G022246;G022232 188664960,259.639,53.0644,9.53,G022246;G022103 # Sector 024 targets observed (12) 159230124,246.1819,27.414,11.65,G022246 310075721,246.4359,28.8454,10.74,G022246 417581428,240.8039,42.2442,9.37,G022246 150436647,226.1879,43.5954,12.03,G022246 188664960,259.639,53.0643,9.53,G022246;G022103 116414053,232.1406,45.3368,11.91,G022246 156074438,237.2937,45.6826,12.29,G022246 157419750,238.9605,44.7365,11.79,G022246 161725619,236.8237,54.7127,12.31,G022246 165762922,232.0911,56.671,11.01,G022246;G022232 115278643,250.1397,47.8978,12.65,G022246 229666795,245.0495,42.2014,11.06,G022246 # Sector 025 targets observed (12) 159413527,254.788,34.8648,11.84,G022246 21721691,256.0599,34.5544,11.63,G022232;G022246 310075721,246.4359,28.8454,10.74,G022246 159230124,246.1819,27.4139,11.65,G022246 310074762,246.4421,25.7389,12.03,G022246;G022232 311275542,247.652,24.9964,12.62,G022246 458718857,244.965,22.6364,10.81,G022232;G022246 115278643,250.1397,47.8978,12.65,G022246 162556700,243.7378,49.7672,10.48,G022246;G022062 229666795,245.0495,42.2014,11.06,G022246 417581428,240.8039,42.2442,9.37,G022246 193680710,267.1243,47.6411,13.03,G022246 # Sector 026 targets observed (2) 188664960,259.639,53.0643,9.53,G022246;G022103 193680710,267.1243,47.6411,13.03,G022246