# Summary of K2 Program GO14065

Title: Eclipsing Binary Stars as Tracers of Stellar Populations across Galactic Latitudes

PI: Prsa, Andrej (Villanova University)
CoIs: Pepper, Joshua; LaCourse, Daryll M; Abdul-Masih, Michael; Wells, Mark Andrew; Conroy, Kyle; Torres, Guillermo; Southworth, John

The K2 mission observes fields along the ecliptic; these fields range from -70 to 70-deg in galactic latitudes, thus probing inherently different parts of our Galaxy. These parts (the bulge, thick disk, thin disk, halo) feature distinct stellar populations, and understanding the properties of those populations is an ongoing effort. Studying these properties relies on reliable fundamental parameters of stars: their masses, radii, temperatures and luminosities. Eclipsing binary stars lend themselves naturally to this task, since their favorable geometrical orientation and basic laws of gravity enable us to determine fundamental parameters to a ~1% accuracy. We scoured the published catalogs and proprietary KELT and SuperWASP data for all eclipsing binary stars in K2 C14, C15 and C16 fields. We propose to observe these stars and, along with other serendipitous discoveries of binarity in the fields, build a stellar population model based on the fundamental parameters derived from K2 data and follow-up multi-color photometry and spectroscopy. Studying the intrinsic differences in stellar populations across K2 fields will allow us to infer the dependence on galactic latitude and contribute to our understanding of stellar population distribution in our Galaxy.

# Targets requested by this program that have been observed (142)
EPIC ID, RA (J2000) [deg], Dec (J2000) [deg], magnitude, Investigation IDs
201544130, 163.3113, 1.200396, 14.918, GO14058_LC|GO14065_LC
201552850, 163.915575, 1.33068, 15.956, GO14058_LC|GO14065_LC
201591587, 166.667596, 1.914254, 14.849, GO14016_LC|GO14065_LC
201614561, 166.701102, 2.268418, 16.281, GO14065_LC
201708734, 166.834638, 3.786971, 13.583, GO14021_LC|GO14065_LC
201726855, 166.241817, 4.097478, 16.773, GO14065_LC
201744662, 165.278472, 4.392202, 13.796, GO14021_LC|GO14065_LC
201749391, 165.264565, 4.472659, 15.843, GO14058_LC|GO14065_LC|GO14058_SC
201860482, 164.047735, 6.518366, 15.873, GO14058_LC|GO14065_LC
201903805, 164.771287, 7.404309, 15.93, GO14016_LC|GO14065_LC
248408635, 162.098519, -0.102977, 15.437, GO14052_LC|GO14065_LC
248412967, 161.846209, 0.064885, 16.384, GO14065_LC
248421843, 160.592974, 0.420906, 15.807, GO14065_LC
248426490, 161.866212, 0.599385, 16.591, GO14065_LC
248426633, 161.51921, 0.60492, 14.502, GO14058_LC|GO14065_LC|GO14058_SC
248431622, 160.866008, 0.794023, 14.374, GO14065_LC
248432941, 157.231462, 0.841006, 8.771, GO14025_LC|GO14014_LC|GO14068_LC|GO14056_LC|GO14030_LC|GO14063_LC|GO14031_LC|GO14028_LC|GO14065_LC
248433020, 158.631027, 0.843883, 16.391, GO14065_LC
248433964, 160.063982, 0.877888, 14.789, GO14052_LC|GO14065_LC
248436130, 162.28486, 0.96234, 14.752, GO14065_LC
248438270, 158.180521, 1.041991, 15.647, GO14058_LC|GO14065_LC
248439909, 160.881984, 1.102544, 15.671, GO14052_LC|GO14065_LC
248444785, 161.095382, 1.28947, 16.522, GO14058_LC|GO14065_LC
248447766, 156.851033, 1.400058, 10.947, GO14009_LC|GO14083_LC|GO14065_LC|GO14039_LC|GO14901_LC
248449827, 156.432914, 1.469123, 11.958, GO14052_LC|GO14065_LC
248453495, 159.84474, 1.593193, 13.05, GO14052_LC|GO14021_LC|GO14083_LC|GO14065_LC
248458445, 162.455205, 1.774543, 16.617, GO14065_LC
248460871, 160.967442, 1.857046, 15.867, GO14065_LC
248469024, 157.858115, 2.13098, 16.931, GO14016_LC|GO14005_LC|GO14065_LC
248472034, 158.298794, 2.234043, 15.846, GO14058_LC|GO14065_LC
248481164, 156.728889, 2.532714, 15.202, GO14052_LC|GO14065_LC
248484737, 157.68429, 2.652253, 15.842, GO14065_LC
248484923, 157.578978, 2.658389, 13.284, GO14052_LC|GO14021_LC|GO14065_LC
248494892, 160.482492, 2.981878, 13.492, GO14021_LC|GO14065_LC
248497656, 159.159095, 3.073032, 13.95, GO14021_LC|GO14065_LC
248509474, 158.371646, 3.440873, 16.643, GO14058_LC|GO14065_LC|GO14058_SC
248511185, 165.020962, 3.49705, 16.488, GO14065_LC
248513164, 160.187909, 3.554595, 14.624, GO14052_LC|GO14065_LC
248513839, 157.730057, 3.574046, 16.625, GO14065_LC
248514400, 159.386252, 3.589613, 15.35, GO14065_LC
248514834, 157.534727, 3.602296, 15.44, GO14058_LC|GO14065_LC|GO14058_SC
248515206, 161.008336, 3.613024, 15.083, GO14052_LC|GO14065_LC
248521679, 157.801459, 3.791416, 16.694, GO14058_LC|GO14065_LC
248523581, 154.66221, 3.84491, 15.806, GO14065_LC
248524955, 157.243889, 3.88257, 16.748, GO14065_LC
248530218, 153.56042, 4.026923, 16.738, GO14016_LC|GO14046_LC|GO14062_LC|GO14065_LC|GO14062_SC
248530480, 154.620601, 4.033862, 16.004, GO14058_LC|GO14065_LC
248531554, 160.364959, 4.061217, 16.185, GO14016_LC|GO14005_LC|GO14065_LC
248533508, 158.235692, 4.112712, 16.012, GO14052_LC|GO14065_LC
248534214, 157.770374, 4.131949, 16.613, GO14065_LC
248534772, 161.027115, 4.145808, 14.396, GO14052_LC|GO14004_LC|GO14065_LC
248535218, 160.354934, 4.157373, 12.989, GO14009_LC|GO14021_LC|GO14065_LC
248535745, 154.194647, 4.171735, 16.676, GO14065_LC
248537862, 156.678741, 4.228988, 14.49, GO14052_LC|GO14021_LC|GO14083_LC|GO14065_LC
248540589, 153.546876, 4.299716, 16.427, GO14065_LC
248553635, 153.749733, 4.642639, 16.806, GO14058_LC|GO14065_LC
248555268, 153.521277, 4.683579, 16.478, GO14065_LC
248555735, 160.538943, 4.695966, 12.746, GO14065_LC
248566630, 160.586693, 4.996536, 16.972, GO14065_LC
248570382, 157.938024, 5.087235, 14.666, GO14065_LC
248574437, 156.464162, 5.195872, 15.161, GO14058_LC|GO14065_LC
248577025, 153.922579, 5.264335, 15.674, GO14065_LC
248578358, 162.940023, 5.298766, 13.307, GO14021_LC|GO14065_LC
248583223, 162.749875, 5.425565, 14.517, GO14052_LC|GO14065_LC
248585705, 156.925796, 5.493684, 15.977, GO14065_LC
248596522, 155.441962, 5.787047, 16.434, GO14016_LC|GO14062_LC|GO14065_LC|GO14062_SC
248598880, 160.189664, 5.84694, 14.009, GO14021_LC|GO14065_LC
248609813, 159.488802, 6.1201, 15.434, GO14052_LC|GO14065_LC
248612273, 158.055476, 6.180379, 14.051, GO14021_LC|GO14065_LC
248612305, 158.06127, 6.181137, 13.555, GO14021_LC|GO14065_LC
248612539, 163.332639, 6.187114, 13.474, GO14052_LC|GO14065_LC
248615381, 161.451472, 6.260277, 14.77, GO14052_LC|GO14065_LC
248621694, 155.603242, 6.421576, 16.228, GO14065_LC
248625627, 155.157246, 6.518503, 14.389, GO14052_LC|GO14065_LC
248637010, 159.808528, 6.806775, 16.221, GO14052_LC|GO14065_LC
248637603, 158.561623, 6.821444, 14.86, GO14052_LC|GO14065_LC
248637749, 155.019097, 6.824983, 13.469, GO14052_LC|GO14021_LC|GO14083_LC|GO14065_LC
248645589, 154.809377, 7.019167, 16.969, GO14065_LC
248649833, 154.183235, 7.117669, 14.472, GO14065_LC
248653582, 160.492516, 7.211704, 14.964, GO14058_LC|GO14065_LC|GO14058_SC
248660372, 159.918131, 7.378787, 14.374, GO14021_LC|GO14065_LC
248685347, 155.836116, 7.992797, 16.989, GO14016_LC|GO14051_LC|GO14089_LC|GO14080_LC|GO14065_LC|GO14051_SC|GO14080_SC
248691071, 164.063635, 8.1283, 14.796, GO14065_LC
248695085, 157.019146, 8.222734, 16.913, GO14016_LC|GO14065_LC
248700289, 157.639182, 8.341216, 16.403, GO14065_LC
248708613, 157.038833, 8.533763, 14.377, GO14065_LC
248720565, 160.770929, 8.807808, 15.034, GO14065_LC
248725167, 158.22403, 8.914666, 15.964, GO14065_LC
248728036, 164.688207, 8.976664, 16.24, GO14058_LC|GO14065_LC
248728860, 159.910501, 8.994434, 12.553, GO14038_LC|GO14021_LC|GO14065_LC
248729285, 165.101622, 9.003748, 15.348, GO14052_LC|GO14065_LC
248729649, 159.020893, 9.011843, 14.768, GO14052_LC|GO14065_LC
248730795, 160.169851, 9.03585, 16.101, GO14058_LC|GO14065_LC
248731639, 157.690561, 9.053713, 16.669, GO14016_LC|GO14065_LC
248731808, 160.812831, 9.057572, 16.212, GO14058_LC|GO14065_LC
248731983, 160.775649, 9.061214, 13.805, GO14058_LC|GO14065_LC|GO14058_SC
248733441, 162.902318, 9.091976, 10.053, GO14009_LC|GO14028_LC|GO14021_LC|GO14020_LC|GO14083_LC|GO14065_LC|GO14901_LC
248744754, 165.027078, 9.353475, 14.494, GO14052_LC|GO14065_LC
248746213, 164.484577, 9.387486, 15.272, GO14066_LC|GO14019_LC|GO14044_LC|GO14049_LC|GO14052_LC|GO14065_LC|GO14066_SC|GO14049_SC
248748173, 158.957034, 9.431051, 16.378, GO14016_LC|GO14096_LC|GO14051_LC|GO14089_LC|GO14080_LC|GO14065_LC|GO14051_SC|GO14080_SC
248750938, 158.894114, 9.498461, 15.487, GO14065_LC
248751007, 155.160014, 9.500191, 15.007, GO14065_LC
248751412, 155.159086, 9.509303, 12.989, GO14021_LC|GO14065_LC
248752090, 157.240798, 9.525, 15.162, GO14016_LC|GO14062_LC|GO14052_LC|GO14083_LC|GO14065_LC|GO14016_SC|GO14062_SC
248752943, 155.425405, 9.544034, 13.805, GO14021_LC|GO14065_LC
248754083, 154.62964, 9.570801, 16.701, GO14016_LC|GO14005_LC|GO14065_LC
248761126, 163.349213, 9.739385, 9.89, GO14063_LC|GO14009_LC|GO14028_LC|GO14052_LC|GO14021_LC|GO14020_LC|GO14065_LC
248767452, 154.531982, 9.891081, 16.674, GO14065_LC
248769667, 164.612621, 9.94484, 16.985, GO14058_LC|GO14065_LC
248771015, 164.444077, 9.978072, 13.174, GO14052_LC|GO14021_LC|GO14065_LC
248774251, 157.070736, 10.05713, 15.882, GO14065_LC
248774401, 163.115526, 10.060597, 15.805, GO14016_LC|GO14001_LC|GO14062_LC|GO14052_LC|GO14065_LC|GO14039_LC|GO14062_SC
248781718, 154.4624, 10.241653, 16.05, GO14065_LC
248782071, 154.491762, 10.250967, 14.973, GO14052_LC|GO14065_LC
248785591, 163.755585, 10.335844, 13.46, GO14021_LC|GO14065_LC
248786779, 161.22964, 10.362661, 14.593, GO14052_LC|GO14021_LC|GO14065_LC
248792013, 155.22567, 10.493041, 13.365, GO14065_LC
248799994, 161.799831, 10.680665, 14.249, GO14052_LC|GO14021_LC|GO14065_LC
248803544, 158.524584, 10.762629, 15.587, GO14058_LC|GO14065_LC
248807515, 154.316956, 10.856649, 16.4, GO14016_LC|GO14051_LC|GO14089_LC|GO14080_LC|GO14065_LC|GO14051_SC|GO14080_SC
248826125, 164.4573, 11.310656, 16.696, GO14058_LC|GO14065_LC
248833762, 165.043795, 11.497999, 13.388, GO14058_LC|GO14021_LC|GO14065_LC
248842041, 158.979879, 11.699306, 16.374, GO14065_LC
248842207, 160.990587, 11.703669, 12.086, GO14071_LC|GO14009_LC|GO14079_LC|GO14065_LC
248850137, 161.908161, 11.909436, 16.676, GO14065_LC
248854483, 162.547531, 12.022542, 14.77, GO14065_LC
248857534, 160.21274, 12.097466, 13.046, GO14021_LC|GO14065_LC
248862664, 159.571542, 12.225757, 16.797, GO14065_LC
248865686, 158.918326, 12.299779, 14.884, GO14052_LC|GO14065_LC
248868848, 159.748671, 12.382333, 13.205, GO14021_LC|GO14065_LC
248871792, 162.661405, 12.457684, 14.951, GO14058_LC|GO14065_LC|GO14058_SC
248871909, 165.139702, 12.460618, 14.373, GO14052_LC|GO14065_LC
248876669, 161.949892, 12.579643, 15.591, GO14079_LC|GO14065_LC
248876747, 161.956703, 12.581646, 11.076, GO14009_LC|GO14079_LC|GO14021_LC|GO14065_LC
248887596, 164.363972, 12.877228, 15.765, GO14065_LC
248889345, 162.399979, 12.928766, 9.565, GO14063_LC|GO14065_LC
248889370, 162.404775, 12.929246, 9.446, GO14025_LC|GO14041_LC|GO14068_LC|GO14001_LC|GO14009_LC|GO14028_LC|GO14021_LC|GO14065_LC|GO14901_LC
248912952, 158.667326, 13.654213, 13.454, GO14021_LC|GO14065_LC
248914080, 159.588456, 13.69022, 13.306, GO14021_LC|GO14065_LC
248915624, 159.018095, 13.739217, 13.235, GO14021_LC|GO14065_LC
248916390, 159.68665, 13.76426, 14.762, GO14052_LC|GO14065_LC
248919759, 158.99155, 13.883592, 16.033, GO14065_LC