# Summary of K2 Program GO6054

Title: The effect of wide binaries on planet occurrence - K2 Campaign 6

PI: Deacon, Niall R (Max Planck Institute for Astronomy)
CoIs: Mann, Andrew Withycombe; Kraus, Adam L

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 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 fields 4 & 5 of pair separations. From this we will select pairs which lie in the region dominated by true physical pairs. We will likely only select candidates in field 6 as our preliminary analysis suggests that field 7's low latitude means that the coincident pairing rate is too high to select any true common proper motion binaries.

# Targets requested by this program that have been observed (168)
EPIC ID, RA (J2000) [deg], Dec (J2000) [deg], magnitude, Investigation IDs
212272096, 207.7034912, -18.4223194, 15.329, GO6054_LC
212283238, 208.181076, -18.0425758, 15.658, GO6008_LC|GO6054_LC|GO6071_LC
212287598, 204.0411682, -17.9091187, 12.844, GO6030_LC|GO6054_LC|GO6069_LC
212292461, 201.5785828, -17.761301, 15.905, GO6054_LC
212299288, 205.2636414, -17.5526218, 15.226, GO6054_LC|GO6071_LC
212304015, 204.5921021, -17.4094276, 14.067, GO6008_LC|GO6016_LC|GO6032_LC|GO6054_LC
212304104, 204.5961761, -17.4064331, 13.504, GO6016_LC|GO6032_LC|GO6054_LC
212307181, 205.9332123, -17.3153362, 15.575, GO6008_LC|GO6054_LC|GO6086_LC
212308517, 203.6864624, -17.2778244, 15.909, GO6054_LC
212308616, 203.6874084, -17.2748184, 15.415, GO6008_LC|GO6054_LC
212310608, 207.5278473, -17.2153797, 13.932, GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212316853, 207.7619781, -17.0357304, 14.886, GO6016_LC|GO6054_LC
212316905, 207.7660065, -17.0339966, 14.479, GO6016_LC|GO6032_LC|GO6054_LC
212318857, 203.6191559, -16.9814186, 14.726, GO6016_LC|GO6054_LC
212318879, 203.6156311, -16.9807453, 15.268, GO6054_LC|GO6086_LC
212319044, 208.2111053, -16.9755077, 15.52, GO6008_LC|GO6054_LC
212328387, 205.2346497, -16.7111206, 13.398, GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212333755, 202.419281, -16.5653896, 10.128, GO6028_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6078_LC|GO6087_LC
212334111, 202.4164124, -16.555109, 11.108, GO6029_LC|GO6032_LC|GO6054_LC|GO6071_LC|GO6086_LC
212336514, 199.9267273, -16.4887028, 12.297, GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC
212337911, 201.2433014, -16.4507446, 10.945, GO6030_LC|GO6054_LC|GO6069_LC|GO6087_LC
212341512, 203.8600464, -16.3558178, 14.25, GO6032_LC|GO6054_LC|GO6086_LC
212344732, 206.2377014, -16.2714024, 15.838, GO6054_LC
212346669, 200.661087, -16.2188377, 14.572, GO6008_LC|GO6032_LC|GO6054_LC
212349293, 203.7201843, -16.1490574, 13.87, GO6030_LC|GO6032_LC|GO6054_LC
212349906, 203.6954193, -16.1338158, 14.774, GO6016_LC|GO6054_LC
212352886, 204.4533997, -16.0550385, 15.075, GO6054_LC
212353152, 204.4362793, -16.0478477, 14.956, GO6032_LC|GO6054_LC|GO6086_LC
212368448, 202.4044342, -15.6643982, 14.95, GO6054_LC
212381169, 200.1047974, -15.3518314, 13.891, GO6030_LC|GO6032_LC|GO6054_LC
212382301, 211.255661, -15.32514, 13.551, GO6030_LC|GO6054_LC
212382418, 211.2399139, -15.3219585, 14.26, GO6054_LC
212403663, 202.4098663, -14.8303814, 14.291, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC|GO6086_LC
212403991, 202.4054871, -14.8227034, 11.774, GO6029_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6071_LC|GO6086_LC
212426341, 201.6453094, -14.3197384, 15.856, GO6054_LC
212439113, 197.6869659, -14.0375204, 15.759, GO6054_LC
212440051, 200.8814087, -14.0175304, 15.127, GO6054_LC
212440400, 200.9113922, -14.0099134, 15.443, GO6054_LC
212448496, 210.6099854, -13.8341484, 14.671, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC
212455684, 203.7563934, -13.6802311, 15.521, GO6008_LC|GO6054_LC
212455886, 203.7707214, -13.6754894, 14.615, GO6032_LC|GO6054_LC|GO6086_LC
212457630, 209.8374634, -13.6371927, 15.851, GO6054_LC
212457767, 209.8422089, -13.6341848, 14.857, GO6054_LC
212481693, 200.4199066, -13.1295719, 11.897, GO6029_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212489787, 199.6209717, -12.9534225, 10.467, GO6028_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC|GO6087_LC
212498815, 201.8342743, -12.7589674, 15.442, GO6054_LC|GO6086_LC
212500678, 201.1330719, -12.7199621, 12.062, GO6029_LC|GO6032_LC|GO6054_LC
212503249, 207.1847687, -12.6650896, 15.616, GO6054_LC
212506890, 206.547348, -12.5876608, 15.66, GO6054_LC
212519018, 197.8080139, -12.3311844, 14.556, GO6054_LC
212521276, 208.0240479, -12.2821131, 15.12, GO6054_LC|GO6085_LC
212526775, 207.5547333, -12.1665363, 15.281, GO6054_LC|GO6085_LC
212526880, 198.5953979, -12.1642199, 14.574, GO6032_LC|GO6054_LC
212528988, 207.2669983, -12.1202612, 14.158, GO6032_LC|GO6054_LC|GO6085_LC|GO6086_LC
212531931, 207.0241547, -12.0543718, 15.866, GO6054_LC|GO6085_LC
212534147, 208.3385925, -12.005827, 13.973, GO6016_LC|GO6030_LC|GO6054_LC
212536616, 208.3274536, -11.9554338, 15.779, GO6054_LC|GO6085_LC
212553686, 202.2120972, -11.5959415, 14.556, GO6008_LC|GO6016_LC|GO6032_LC|GO6054_LC|GO6071_LC
212553846, 202.2137146, -11.5923176, 13.225, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC
212562681, 198.366394, -11.4002647, 15.463, GO6054_LC
212562879, 202.9536591, -11.3958578, 15.673, GO6008_LC|GO6054_LC
212563760, 198.8482666, -11.3766489, 14.269, GO6054_LC
212564410, 200.0075836, -11.3614893, 11.861, GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC
212564796, 200.0132751, -11.3528881, 9.985, GO6030_LC|GO6054_LC
212567667, 206.6291962, -11.2935152, 15.086, GO6054_LC|GO6085_LC|GO6086_LC
212568165, 206.6331635, -11.2825499, 14.702, GO6054_LC|GO6085_LC
212568383, 203.0285645, -11.2779856, 11.514, GO6029_LC|GO6032_LC|GO6054_LC|GO6069_LC|GO6086_LC
212568514, 202.7938232, -11.2753792, 15.29, GO6008_LC|GO6054_LC
212569440, 203.0196228, -11.2563858, 8.83, GO6016_LC|GO6030_LC|GO6054_LC|GO6078_LC|GO6086_LC|GO6087_LC
212578718, 207.590744, -11.0572596, 15.844, GO6054_LC|GO6085_LC
212580577, 207.4564056, -11.0161133, 12.075, GO6008_LC|GO6032_LC|GO6054_LC
212580720, 207.4482727, -11.012907, 9.5, GO6030_LC|GO6054_LC|GO6069_LC|GO6078_LC|GO6085_LC|GO6086_LC|GO6087_LC
212583333, 199.5494843, -10.9554672, 13.903, GO6030_LC|GO6032_LC|GO6054_LC
212583571, 199.5486603, -10.9503222, 14.542, GO6032_LC|GO6054_LC
212587874, 206.7977753, -10.8580408, 14.283, GO6032_LC|GO6054_LC|GO6085_LC|GO6086_LC
212590707, 207.190506, -10.7979498, 15.995, GO6054_LC
212592979, 207.1629791, -10.7476768, 13.394, GO6030_LC|GO6054_LC|GO6085_LC
212593874, 199.3025665, -10.7283268, 13.945, GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212594284, 199.3046417, -10.7188673, 15.18, GO6054_LC
212604192, 198.6688232, -10.4940205, 10.152, GO6030_LC|GO6054_LC|GO6069_LC|GO6084_LC|GO6086_LC|GO6087_LC
212605263, 198.6651001, -10.470787, 15.115, GO6008_LC|GO6054_LC
212619671, 201.5779419, -10.1444969, 12.624, GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC
212625213, 209.0394592, -10.0176373, 14.275, GO6032_LC|GO6054_LC
212625974, 202.1852875, -10.0004482, 14.166, GO6054_LC|GO6085_LC
212626250, 202.2078705, -9.9942741, 14.319, GO6032_LC|GO6054_LC|GO6085_LC
212626332, 209.0176086, -9.9925117, 14.455, GO6016_LC|GO6032_LC|GO6054_LC
212643468, 208.2700195, -9.5960646, 14.404, GO6032_LC|GO6054_LC
212646417, 204.5820312, -9.5279188, 15.624, GO6008_LC|GO6054_LC|GO6071_LC
212646589, 204.5751648, -9.5237265, 11.629, GO6029_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6085_LC|GO6086_LC|GO6087_LC
212649587, 207.8497162, -9.4541187, 15.65, GO6054_LC|GO6086_LC
212650434, 204.9457092, -9.4359283, 15.8, GO6054_LC
212650499, 204.9131012, -9.4342871, 15.922, GO6054_LC
212654187, 207.131546, -9.3497581, 14.749, GO6054_LC
212659088, 205.413269, -9.2342863, 14.748, GO6054_LC
212660824, 211.1297607, -9.1941471, 14.36, GO6054_LC
212664470, 212.0296173, -9.1090651, 11.201, GO6030_LC|GO6054_LC|GO6086_LC
212665020, 212.0010681, -9.0965595, 13.023, GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212666432, 202.4173279, -9.0635557, 15.266, GO6054_LC|GO6085_LC
212666893, 212.0559235, -9.0525274, 14.106, GO6054_LC
212666901, 212.0480957, -9.05233, 15.998, GO6054_LC
212672361, 211.8656311, -8.9258347, 12.306, GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC
212678183, 206.2749329, -8.7857256, 15.273, GO6008_LC|GO6054_LC|GO6086_LC
212679625, 206.2619019, -8.752965, 11.884, GO6029_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC|GO6087_LC
212682985, 208.4238281, -8.6727972, 13.491, GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212684072, 198.2646179, -8.6484537, 14.992, GO6054_LC|GO6085_LC
212684586, 199.2051697, -8.6368046, 14.237, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC|GO6085_LC|GO6086_LC
212684761, 198.2644958, -8.6328869, 14.651, GO6032_LC|GO6054_LC|GO6085_LC
212684812, 199.201767, -8.6315765, 15.026, GO6008_LC|GO6054_LC|GO6071_LC
212692063, 210.9127045, -8.4564104, 12.414, GO6029_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC
212692081, 198.3168793, -8.4561625, 15.243, GO6008_LC|GO6054_LC
212692493, 210.8927307, -8.4452677, 12.371, GO6029_LC|GO6030_LC|GO6054_LC|GO6086_LC
212692810, 198.2903748, -8.4376087, 14.802, GO6008_LC|GO6016_LC|GO6054_LC
212696374, 208.6275787, -8.349843, 14.506, GO6032_LC|GO6054_LC
212697167, 208.7171478, -8.3303738, 14.792, GO6054_LC
212697361, 203.3311157, -8.3261023, 14.833, GO6043_LC|GO6054_LC
212698653, 206.2778778, -8.2936096, 15.815, GO6054_LC
212702578, 208.4102478, -8.1942558, 15.144, GO6054_LC
212707214, 199.5128479, -8.0812387, 15.915, GO6054_LC
212707571, 208.6110535, -8.0727406, 15.593, GO6043_LC|GO6054_LC
212714144, 199.2739868, -7.9109068, 12.304, GO6030_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6085_LC|GO6086_LC
212718184, 208.231781, -7.8093262, 15.415, GO6054_LC
212719942, 208.4735565, -7.7666359, 11.674, GO6016_LC|GO6030_LC|GO6054_LC|GO6071_LC|GO6087_LC
212720096, 208.4766083, -7.7624769, 11.278, GO6030_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6078_LC|GO6086_LC|GO6087_LC
212720439, 201.3197174, -7.7536702, 14.425, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC
212720509, 201.3170929, -7.7519722, 15.183, GO6008_LC|GO6054_LC|GO6071_LC
212725644, 202.7400055, -7.6186328, 11.5, GO6029_LC|GO6032_LC|GO6054_LC|GO6084_LC
212726424, 202.7430878, -7.6006098, 13.146, GO6008_LC|GO6032_LC|GO6054_LC|GO6086_LC
212729192, 203.4663696, -7.5291839, 15.398, GO6008_LC|GO6054_LC
212740462, 204.714798, -7.237864, 13.504, GO6030_LC|GO6054_LC
212741715, 199.3871307, -7.204978, 13.096, GO6030_LC|GO6054_LC|GO6085_LC
212741990, 203.5655518, -7.1971931, 15.071, GO6054_LC
212744828, 200.5723877, -7.1204758, 15.249, GO6008_LC|GO6054_LC|GO6071_LC
212744952, 200.5657196, -7.1162729, 15.123, GO6008_LC|GO6054_LC|GO6071_LC
212750363, 199.8488159, -6.9709582, 14.314, GO6032_LC|GO6054_LC
212750560, 199.0538635, -6.9660258, 14.318, GO6032_LC|GO6054_LC
212751695, 200.0831604, -6.9337888, 14.892, GO6032_LC|GO6054_LC|GO6086_LC
212752347, 199.8713837, -6.9154258, 15.363, GO6008_LC|GO6054_LC
212754640, 207.1120453, -6.8504782, 15.059, GO6054_LC|GO6071_LC
212754851, 207.1123199, -6.8443928, 15.267, GO6054_LC|GO6071_LC
212755780, 201.8007202, -6.8187752, 14.688, GO6008_LC|GO6016_LC|GO6032_LC|GO6054_LC
212768011, 204.8983765, -6.473814, 14.334, GO6043_LC|GO6054_LC
212774467, 205.7333221, -6.2873378, 13.998, GO6008_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6086_LC
212774922, 205.717865, -6.273809, 11.991, GO6029_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6069_LC|GO6078_LC|GO6086_LC|GO6087_LC
212783381, 206.4964447, -6.0239468, 15.325, GO6054_LC
212786093, 204.8817596, -5.9494328, 14.24, GO6054_LC
212788477, 202.3436737, -5.883142, 11.761, GO6030_LC|GO6040_LC|GO6054_LC|GO6082_LC|GO6086_LC|GO6082_SC
212797699, 201.8990479, -5.6148181, 14.199, GO6054_LC
212797734, 201.9065552, -5.6137519, 13.832, GO6030_LC|GO6054_LC
212801722, 209.1030884, -5.488708, 15.572, GO6054_LC
212801953, 209.1042328, -5.4814181, 15.482, GO6054_LC
212804968, 204.8232727, -5.3907461, 15.063, GO6054_LC|GO6086_LC
212805677, 204.9768066, -5.368351, 15.072, GO6054_LC
212805847, 204.7884521, -5.362874, 11.788, GO6028_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC|GO6087_LC
212810653, 201.708252, -5.2094622, 10.714, GO6028_LC|GO6029_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6086_LC|GO6087_LC
212816082, 202.005127, -5.0371251, 14.174, GO6008_LC|GO6032_LC|GO6054_LC|GO6071_LC
212816141, 202.0065765, -5.035192, 15.141, GO6008_LC|GO6054_LC|GO6071_LC
212818814, 208.2814331, -4.9471369, 14.447, GO6043_LC|GO6054_LC|GO6071_LC
212818982, 205.0476532, -4.9419289, 14.374, GO6054_LC
212822210, 204.5935974, -4.8362751, 12.586, GO6030_LC|GO6054_LC|GO6069_LC
212824185, 203.0613861, -4.7686639, 15.775, GO6054_LC
212824346, 203.0618744, -4.7631178, 13.009, GO6030_LC|GO6054_LC
212824463, 203.0308685, -4.7599258, 14.879, GO6054_LC
212828769, 202.2527466, -4.615129, 14.202, GO6008_LC|GO6016_LC|GO6032_LC|GO6054_LC|GO6071_LC
212828909, 202.2516022, -4.6102281, 12.244, GO6029_LC|GO6030_LC|GO6032_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6086_LC
212829353, 202.829361, -4.5957379, 13.431, GO6030_LC|GO6054_LC
212840032, 202.5343628, -4.2160468, 10.183, GO6028_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6078_LC|GO6086_LC|GO6087_LC
212840069, 202.5450134, -4.2147069, 10.767, GO6028_LC|GO6030_LC|GO6054_LC|GO6069_LC|GO6071_LC|GO6086_LC|GO6087_LC
212844028, 202.2688141, -4.063869, 14.306, GO6043_LC|GO6054_LC