# Summary of K2 Program GO10059

Title: The effect of wide binaries on planet occurrence - K2 Cycle 3

PI: Deacon, Niall R (University of Hertfordshire)
CoIs: Mann, Andrew Withycombe; Kraus, Adam L

The effect of wide binaries on planet occurrence - K2 Campaigns 8 and 10

We plan to observe a sample of wide binaries spread across the K2 fields to constrain the effect of wide multiplicity on planet occurrence and to provide benchmark systems for gyrochronology.

Science Goal 1: Probe the effect of wide multiplicity on planet occurrence. Wide companions are common in the field; Raghavan et al (2010) found that >20% of solar-type stars have a companion wider than 100AU. Any link between planet occurrence and wide multiplicity will have a significant effect on the number of habitable planets in the Galaxy. We propose to test the disruption of planetary systems caused by a wide companion proposed by Kaib et al. (2013).  In this theory, wide companions interact with field stars and are sent into elliptical orbits bringing them close to their primary star, possibly close enough to disrupt a planetary system. This could eject planets from the system or provide an instigator for migration, moving giant planets closer to their parent star. Over the course of the next two years we will target approximately 1000 stars across the 10 K2 fields yielding approximately 20 planets. This will allow us to measure the occurrence of short period planets around stars in wide binaries and to test whether this deviates significantly from the field population. This will constrain the potential systematic bias on planet occurrence rates caused by multiplicity. Kepler has already been used to accurately measure the rotation periods of thousands of stars. 


Science Goal 2: Provide benchmark gyrochronology systems. Wide binary systems contain stars which are physically isolated from each other yet share common metallicity and age. This means that the stars in these systems can be used to test age relations, which should give similar ages for both components. 


By including wide binary components as Kepler targets, we will produce a valuable legacy product to test and recalibrate gyrochronology relations allowing the ages of field stars to be better constrained.

Target Selection. We will use the proper motion catalogue produced by Kraus et al. (2014) based on the methods of Kraus & Hillenbrand (2007) including proper motions, estimated spectral types and distance moduli from SED fitting. We will select objects in both Fields 8 and 10 with significant (>5sigma) proper motions above 30mas/yr. From these we will select pairs of widely separated objects with common proper motion and distance.  To remove contamination due to coincident pairings of unrelated field stars, we will plot a histogram similar to the one we constructed for field 6 of pair separation. From this we will select pairs which lie in the region dominated by true physical pairs.

# Targets requested by this program that have been observed (190)
EPIC ID, RA (J2000) [deg], Dec (J2000) [deg], magnitude, Investigation IDs
201080381, 182.624768, -7.149965, 14.338, GO10059_LC
201082356, 181.206869, -7.092214, 15.218, GO10056_LC|GO10032_LC|GO10059_LC
201082948, 181.252621, -7.075333, 13.073, GO10032_LC|GO10059_LC
201085274, 183.263176, -7.009963, 12.959, GO10068_LC|GO10077_LC|GO10059_LC
201086013, 183.272898, -6.989734, 12.211, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
201094029, 179.779942, -6.765296, 15.853, GO10059_LC
201094446, 179.76933, -6.753122, 13.84, GO10077_LC|GO10059_LC|GO10042_LC
201096562, 182.476878, -6.691014, 13.253, GO10077_LC|GO10059_LC
201105931, 182.621982, -6.423852, 11.681, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
201116937, 180.929433, -6.120455, 15.481, GO10059_LC
201118358, 182.402512, -6.082395, 12.808, GO10068_LC|GO10077_LC|GO10059_LC
201139000, 184.115332, -5.563536, 12.145, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201139427, 184.113374, -5.553355, 15.438, GO10056_LC|GO10059_LC|GO10031_LC
201139969, 182.99907, -5.539492, 14.394, GO10032_LC|GO10059_LC
201142172, 181.038392, -5.48591, 15.021, GO10059_LC|GO10042_LC
201153090, 180.226229, -5.221828, 12.675, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201153439, 180.228459, -5.213669, 15.011, GO10056_LC|GO10032_LC|GO10059_LC
201157627, 183.000537, -5.114115, 12.36, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201175621, 180.194191, -4.682067, 15.895, GO10056_LC|GO10059_LC
201175847, 180.207707, -4.676553, 14.326, GO10056_LC|GO10032_LC|GO10059_LC|GO10042_LC
201183684, 184.781717, -4.488968, 14.417, GO10059_LC|GO10042_LC
201184725, 184.788848, -4.463997, 11.85, GO10068_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC
201187053, 181.806066, -4.408216, 10.247, GO10068_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC
201189651, 184.938691, -4.345352, 14.553, GO10059_LC|GO10042_LC
201198228, 181.321883, -4.143668, 15.992, GO10901_LC|GO10059_LC
201199520, 184.259335, -4.114133, 15.786, GO10056_LC|GO10059_LC|GO10031_LC
201199949, 184.243305, -4.104208, 15.395, GO10056_LC|GO10059_LC|GO10031_LC
201203529, 183.197193, -4.021709, 15.273, GO10059_LC|GO10042_LC
201205371, 182.799731, -3.977815, 10.092, GO10068_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10028_LC
201205974, 182.854669, -3.964338, 14.34, GO10056_LC|GO10032_LC|GO10059_LC|GO10042_LC
201210905, 182.876517, -3.846286, 11.494, GO10068_LC|GO10051_LC|GO10077_LC|GO10059_LC
201228562, 184.348868, -3.532891, 15.869, GO10059_LC|GO10042_LC
201230769, 184.345658, -3.500381, 15.849, GO10056_LC|GO10059_LC
201233437, 179.915117, -3.459777, 13.987, GO10906_LC|GO10077_LC|GO10059_LC|GO10042_LC
201240623, 181.700857, -3.351211, 11.698, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
201246963, 179.950642, -3.254692, 14.319, GO10901_LC|GO10906_LC|GO10013_LC|GO10032_LC|GO10059_LC
201266673, 184.286511, -2.954998, 14.872, GO10032_LC|GO10059_LC
201289427, 180.569159, -2.607904, 14.316, GO10059_LC
201299592, 181.647525, -2.456864, 13.743, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201303630, 180.518487, -2.396939, 13.22, GO10077_LC|GO10059_LC
201334501, 185.951172, -1.93744, 15.389, GO10901_LC|GO10013_LC|GO10059_LC
201359363, 182.079251, -1.566049, 15.464, GO10059_LC
201377124, 181.799123, -1.306591, 15.819, GO10032_LC|GO10059_LC|GO10033_LC
201402894, 180.406722, -0.916956, 13.841, GO10077_LC|GO10059_LC|GO10033_LC
201417703, 183.327821, -0.689553, 15.78, GO10056_LC|GO10032_LC|GO10059_LC|GO10033_LC
201422009, 182.060107, -0.624772, 11.739, GO10068_LC|GO10013_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10066_LC|GO10042_LC|GO10033_LC
201422410, 182.072479, -0.618976, 10.729, GO10068_LC|GO10013_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10033_LC
201445669, 181.163952, -0.280815, 10.248, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10066_LC|GO10033_LC
201448833, 185.153912, -0.235217, 12.774, GO10068_LC|GO10077_LC|GO10059_LC
201454856, 184.430109, -0.15013, 14.81, GO10059_LC
201459714, 182.378013, -0.078922, 12.096, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10033_LC
201470788, 184.968398, 0.084235, 15.16, GO10056_LC|GO10013_LC|GO10059_LC|GO10031_LC
201471014, 184.965611, 0.087298, 14.615, GO10901_LC|GO10013_LC|GO10032_LC|GO10059_LC
201471400, 184.02579, 0.093458, 12.123, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
201471743, 184.026494, 0.09865, 15.933, GO10059_LC|GO10069_LC
201484540, 181.831179, 0.288443, 14.456, GO10032_LC|GO10059_LC|GO10033_LC
201485806, 181.828403, 0.308579, 15.594, GO10056_LC|GO10032_LC|GO10059_LC
201506182, 182.596769, 0.61663, 13.724, GO10901_LC|GO10013_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201506591, 182.599953, 0.622992, 14.445, GO10013_LC|GO10032_LC|GO10059_LC
201518536, 181.322581, 0.807365, 14.747, GO10059_LC|GO10042_LC
201534924, 184.078, 1.060667, 13.854, GO10077_LC|GO10059_LC|GO10042_LC
201596032, 184.827169, 1.982905, 15.467, GO10059_LC
201647148, 185.695614, 2.771722, 12.487, GO10901_LC|GO10068_LC|GO10013_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
201647574, 185.70472, 2.778504, 12.666, GO10068_LC|GO10013_LC|GO10032_LC|GO10059_LC|GO10042_LC
201654566, 184.366091, 2.887844, 9.911, GO10068_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10066_LC
201654762, 184.35855, 2.891141, 13.676, GO10056_LC|GO10032_LC|GO10059_LC|GO10042_LC
228702421, 189.664106, -11.260179, 15.286, GO10056_LC|GO10059_LC|GO10042_LC
228709655, 188.342242, -10.875456, 15.211, GO10056_LC|GO10059_LC|GO10031_LC
228711005, 185.833951, -10.80849, 13.884, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228711071, 185.832171, -10.80476, 12.839, GO10901_LC|GO10059_LC|GO10042_LC|GO10031_LC
228712858, 185.855651, -10.7116, 15.233, GO10056_LC|GO10013_LC|GO10032_LC|GO10059_LC
228712875, 185.859479, -10.711088, 15.65, GO10056_LC|GO10013_LC|GO10059_LC|GO10031_LC
228713193, 187.653364, -10.695137, 14.264, GO10056_LC|GO10013_LC|GO10059_LC|GO10031_LC
228713218, 187.658866, -10.69377, 11.009, GO10056_LC|GO10013_LC|GO10059_LC|GO10042_LC
228714356, 185.576439, -10.636036, 12.889, GO10068_LC|GO10077_LC|GO10059_LC
228716992, 189.380032, -10.501376, 14.832, GO10056_LC|GO10059_LC|GO10031_LC
228718309, 187.735144, -10.435982, 15.64, GO10056_LC|GO10013_LC|GO10032_LC|GO10059_LC
228718339, 187.738761, -10.434847, 15.853, GO10056_LC|GO10013_LC|GO10059_LC
228718828, 187.670573, -10.411087, 15.103, GO10056_LC|GO10032_LC|GO10059_LC
228721999, 183.747477, -10.25436, 12.816, GO10068_LC|GO10077_LC|GO10059_LC
228722591, 185.11589, -10.225782, 15.539, GO10059_LC
228722810, 189.830799, -10.215301, 11.743, GO10051_LC|GO10077_LC|GO10059_LC
228725992, 182.814402, -10.059244, 15.5, GO10056_LC|GO10032_LC|GO10059_LC
228726254, 189.443098, -10.046678, 10.916, GO10901_LC|GO10068_LC|GO10013_LC|GO10032_LC|GO10077_LC|GO10059_LC
228727560, 185.597523, -9.982785, 13.943, GO10056_LC|GO10013_LC|GO10032_LC|GO10059_LC|GO10042_LC
228727658, 182.525206, -9.978394, 12.903, GO10901_LC|GO10068_LC|GO10077_LC|GO10059_LC
228727692, 182.51602, -9.976841, 13.373, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228727725, 185.602077, -9.975481, 12.145, GO10013_LC|GO10059_LC|GO10042_LC
228732303, 188.0902, -9.751587, 13.338, GO10056_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228737011, 182.772345, -9.522891, 15.861, GO10059_LC|GO10042_LC
228737435, 188.908553, -9.503326, 14.599, GO10059_LC|GO10031_LC
228737731, 189.182066, -9.488626, 15.385, GO10059_LC|GO10031_LC
228737829, 189.164746, -9.484431, 13.967, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228737930, 186.970359, -9.479815, 12.196, GO10077_LC|GO10059_LC
228738311, 188.956224, -9.460681, 11.088, GO10032_LC|GO10077_LC|GO10059_LC
228744114, 188.820406, -9.189012, 10.805, GO10068_LC|GO10013_LC|GO10032_LC|GO10077_LC|GO10059_LC
228744258, 188.815605, -9.182746, 10.842, GO10901_LC|GO10068_LC|GO10013_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC
228746202, 188.639379, -9.094061, 11.835, GO10056_LC|GO10032_LC|GO10040_LC|GO10059_LC|GO10042_LC
228746871, 187.934759, -9.063374, 13.096, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228746879, 188.639637, -9.063005, 10.682, GO10068_LC|GO10077_LC|GO10040_LC|GO10059_LC|GO10042_LC
228749890, 186.703663, -8.928104, 15.403, GO10059_LC|GO10042_LC
228750400, 187.890617, -8.904199, 14.048, GO10059_LC|GO10042_LC|GO10031_LC
228752791, 182.673204, -8.800657, 14.3, GO10032_LC|GO10059_LC
228753003, 182.640076, -8.791076, 10.819, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10066_LC
228755486, 182.015854, -8.678885, 14.247, GO10056_LC|GO10032_LC|GO10059_LC
228755551, 182.086202, -8.675454, 10.393, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
228760519, 182.926227, -8.459735, 12.641, GO10068_LC|GO10077_LC|GO10059_LC
228775437, 185.18211, -7.817045, 13.785, GO10077_LC|GO10059_LC
228776337, 185.271826, -7.777695, 14.095, GO10077_LC|GO10059_LC
228777869, 192.120568, -7.713863, 15.301, GO10013_LC|GO10059_LC|GO10031_LC
228780089, 192.794162, -7.615264, 13.591, GO10032_LC|GO10077_LC|GO10059_LC
228785234, 186.996812, -7.394093, 15.166, GO10059_LC|GO10042_LC
228785758, 187.041978, -7.371296, 15.713, GO10012_LC|GO10059_LC|GO10042_LC
228786340, 183.045138, -7.345578, 15.128, GO10056_LC|GO10059_LC|GO10031_LC
228788763, 193.008119, -7.245147, 15.617, GO10059_LC
228788793, 185.370598, -7.244249, 11.671, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228790213, 184.523146, -7.186743, 12.427, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228790641, 185.349262, -7.168924, 12.162, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
228792294, 183.817217, -7.100385, 15.261, GO10056_LC|GO10059_LC|GO10031_LC
228792668, 183.829157, -7.085145, 13.215, GO10077_LC|GO10059_LC
228800949, 191.180404, -6.743043, 13.554, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC|GO10036_LC
228802117, 186.450654, -6.69298, 11.97, GO10032_LC|GO10077_LC|GO10059_LC
228804357, 183.822372, -6.596283, 13.198, GO10077_LC|GO10059_LC
228805449, 191.836724, -6.552197, 15.78, GO10056_LC|GO10059_LC|GO10031_LC
228819696, 186.738623, -5.95656, 15.344, GO10056_LC|GO10013_LC|GO10059_LC|GO10031_LC
228819854, 186.743014, -5.949366, 15.823, GO10056_LC|GO10013_LC|GO10059_LC
228820243, 184.523783, -5.932964, 11.678, GO10068_LC|GO10051_LC|GO10077_LC|GO10059_LC
228823353, 184.370018, -5.801478, 14.279, GO10032_LC|GO10059_LC
228839234, 189.929814, -5.141987, 15.749, GO10059_LC|GO10031_LC
228846071, 187.339797, -4.858385, 12.828, GO10059_LC|GO10031_LC
228846134, 187.341875, -4.85519, 11.359, GO10032_LC|GO10077_LC|GO10059_LC
228852689, 190.00281, -4.578527, 14.976, GO10056_LC|GO10013_LC|GO10032_LC|GO10059_LC|GO10033_LC
228852785, 186.391355, -4.574502, 13.076, GO10032_LC|GO10059_LC|GO10042_LC
228852829, 190.005453, -4.57298, 14.69, GO10901_LC|GO10056_LC|GO10013_LC|GO10032_LC|GO10059_LC|GO10033_LC
228853086, 186.377535, -4.562245, 14.907, GO10056_LC|GO10059_LC
228854954, 187.75182, -4.481825, 13.695, GO10056_LC|GO10032_LC|GO10059_LC|GO10042_LC
228855821, 187.692674, -4.445537, 9.467, GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10066_LC|GO10028_LC
228860316, 190.556851, -4.255926, 15.464, GO10059_LC|GO10042_LC
228868522, 189.862283, -3.907176, 15.796, GO10056_LC|GO10059_LC|GO10031_LC
228868558, 189.868565, -3.905656, 13.097, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC|GO10033_LC
228868652, 188.669699, -3.900795, 13.434, GO10077_LC|GO10059_LC|GO10042_LC|GO10033_LC
228885147, 186.853289, -3.532264, 15.367, GO10032_LC|GO10059_LC|GO10033_LC
228891018, 186.357279, -3.434471, 14.949, GO10012_LC|GO10059_LC|GO10042_LC|GO10033_LC
228924045, 186.221858, -2.855448, 11.191, GO10068_LC|GO10013_LC|GO10051_LC|GO10032_LC|GO10077_LC|GO10059_LC|GO10033_LC
228924103, 186.233455, -2.854344, 15.867, GO10056_LC|GO10013_LC|GO10059_LC
228938737, 192.586376, -2.592997, 13.022, GO10901_LC|GO10013_LC|GO10077_LC|GO10059_LC
228940907, 190.134657, -2.554483, 15.202, GO10059_LC|GO10042_LC
228942248, 193.022061, -2.530257, 13.866, GO10077_LC|GO10059_LC
228944571, 190.587899, -2.489288, 13.186, GO10077_LC|GO10059_LC
228952923, 193.486008, -2.339219, 14.753, GO10059_LC
228954639, 193.752201, -2.309719, 15.964, GO10056_LC|GO10059_LC
228960598, 193.863628, -2.204871, 14.855, GO10901_LC|GO10059_LC
228962655, 186.638533, -2.16827, 13.403, GO10901_LC|GO10013_LC|GO10059_LC|GO10042_LC|GO10031_LC
228962811, 186.637091, -2.165037, 13.575, GO10056_LC|GO10013_LC|GO10059_LC|GO10042_LC|GO10031_LC
228975165, 189.321352, -1.938301, 15.224, GO10059_LC|GO10042_LC
228983983, 187.788017, -1.779313, 14.449, GO10059_LC
228988015, 186.817226, -1.706185, 15.595, GO10032_LC|GO10059_LC
228988086, 186.813228, -1.704868, 11.736, GO10051_LC|GO10077_LC|GO10059_LC|GO10066_LC
228991869, 189.282642, -1.638094, 14.269, GO10032_LC|GO10059_LC
228995896, 188.389668, -1.566285, 15.725, GO10059_LC
228996014, 188.366348, -1.563846, 15.463, GO10059_LC
229003137, 193.64667, -1.436899, 13.497, GO10077_LC|GO10059_LC
229003914, 189.372332, -1.421562, 15.547, GO10901_LC|GO10059_LC|GO10031_LC
229012864, 189.222079, -1.258774, 13.595, GO10077_LC|GO10059_LC
229014694, 186.4934, -1.218403, 14.951, GO10056_LC|GO10013_LC|GO10059_LC|GO10031_LC
229024090, 188.280227, -1.018049, 14.624, GO10059_LC
229027157, 189.336414, -0.945883, 15.253, GO10059_LC
229033203, 189.217597, -0.807662, 15.403, GO10056_LC|GO10059_LC|GO10031_LC
229043433, 187.164161, -0.580161, 11.629, GO10901_LC|GO10013_LC|GO10059_LC|GO10042_LC
229043460, 187.157387, -0.579505, 12.119, GO10056_LC|GO10068_LC|GO10013_LC|GO10032_LC|GO10059_LC|GO10042_LC|GO10008_LC
229061822, 188.044993, -0.169287, 14.182, GO10032_LC|GO10059_LC|GO10042_LC
229068743, 190.791743, -0.002293, 10.158, GO10068_LC|GO10051_LC|GO10077_LC|GO10059_LC|GO10050_LC|GO10028_LC
229080429, 189.561307, 0.282104, 15.563, GO10901_LC|GO10013_LC|GO10032_LC|GO10059_LC
229080530, 189.56031, 0.284521, 15.563, GO10056_LC|GO10013_LC|GO10059_LC
229093075, 190.02925, 0.594548, 13.208, GO10077_LC|GO10059_LC
229094828, 190.149787, 0.639116, 13.438, GO10077_LC|GO10059_LC|GO10042_LC
229103039, 188.566576, 0.85829, 15.769, GO10901_LC|GO10056_LC|GO10013_LC|GO10059_LC
229108715, 189.965988, 1.002316, 13.91, GO10013_LC|GO10077_LC|GO10059_LC
229112890, 189.299769, 1.113185, 15.47, GO10059_LC
229122537, 188.751007, 1.351495, 13.918, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
229131345, 191.566546, 1.557475, 11.868, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
229131936, 187.168733, 1.572128, 12.943, GO10068_LC|GO10077_LC|GO10059_LC
229136175, 188.840717, 1.670493, 11.736, GO10068_LC|GO10032_LC|GO10077_LC|GO10059_LC
229138078, 190.462401, 1.716896, 13.523, GO10032_LC|GO10077_LC|GO10059_LC|GO10042_LC
229138435, 188.783375, 1.725044, 14.67, GO10056_LC|GO10059_LC|GO10031_LC
229138467, 190.490127, 1.725754, 14.723, GO10056_LC|GO10032_LC|GO10059_LC
229142461, 189.692204, 1.818898, 14.904, GO10013_LC|GO10059_LC
229148215, 188.167144, 1.958283, 13.805, GO10077_LC|GO10059_LC|GO10042_LC
229166533, 186.889414, 2.442097, 14.944, GO10059_LC|GO10042_LC
229169040, 187.924623, 2.511416, 15.011, GO10059_LC