# Summary of K2 Program GO5100 Title: A Kepler Galaxy Survey - Expanding the Temporal Baseline for Extragalactic Systems PI: Fanelli, Michael N. () CoIs: Marcum, Pamela M Kepler's combination of high-photometric precision and near-continuous observing cadence provides a unique insight on variability in extragalactic systems, by opening up the time domain in previously unavailable detail. Ground-base monitoring of short-term variations are strongly limited by weather and the diurnal cycle, while long-term monitoring is effected by seasonal observing windows. Kepler permits monitoring of galaxies which is sensitive to both continuous variability, especially millimag-level variations from embedded active nuclei and random episodic events, such as supernovae and accretion events induced by tidal disruption of stars orbiting near a SMBH. The primary objectives of this proposal are (a) to expand the baseline of time-domain observations of galactic systems with emphasis on galaxy types not well represented in the Kepler and previous K2 campaigns; (b) quantify the frequency of and amplitude of optical AGN signals in galaxy cores, both quasi-continuous and episodic, and (c) provide a direct measure of supernovae rates across galaxy types, focusing on starburst systems. The reduced sensitivity expected in the K2 campaign still opens up parameter space not accessible from the ground for the topics described above. Goal (b) and (c) are statistical in nature, in which the desire for very large samples to improve detection statistics must be balanced against overall target availability and competing science in each campaign. Measuring the frequency of AGN signals informs on the widely accepted but unproven paradigm that all galaxies contain a central supermassive black hole whose mass scales roughly with the total galaxy mass. For goal (c) we will emphasis starburst systems to improve the odds of detecting the initial light from multiple Type II supernovae. We expect 200-400 targets to meet our criteria for Field 4 and 5 with more robust sampling in Field 5. # Targets requested by this program that have been observed (63) EPIC ID, RA (J2000) [deg], Dec (J2000) [deg], magnitude, Investigation IDs 211390835, 130.648897, 11.497079, 17.525, GO5100_LC 211494606, 130.89639, 13.062961, 18.539, GO5096_LC|GO5100_LC 211580127, 130.700933, 14.265183, 14.341, GO5096_LC|GO5100_LC 211581514, 130.665862, 14.28564, 12.672, GO5029_LC|GO5100_LC 211581950, 128.212576, 14.291921, 16.735, GO5096_LC|GO5100_LC 211615590, 125.966644, 14.751851, 17.375, GO5001_LC|GO5096_LC|GO5100_LC 211770736, 124.014757, 16.901028, 18.351, GO5096_LC|GO5100_LC 211779348, 123.964697, 17.023773, 11.937, GO5007_LC|GO5029_LC|GO5052_LC|GO5100_LC|GO5104_LC|GO5060_LC 211795936, 127.507078, 17.25983, 17.335, GO5096_LC|GO5100_LC 211796072, 134.028755, 17.261572, 17.595, GO5100_LC 211803009, 125.030308, 17.359102, 16.997, GO5100_LC 211811354, 133.88403, 17.478129, 16.539, GO5100_LC 211819647, 127.768519, 17.595328, 17.207, GO5096_LC|GO5100_LC 211827162, 132.019105, 17.702348, 13.974, GO5096_LC|GO5100_LC 211881651, 135.154386, 18.459491, 17.789, GO5100_LC 211894865, 133.317017, 18.651011, 16.729, GO5096_LC|GO5100_LC 211895666, 129.448522, 18.662769, 18.569, GO5100_LC 211896947, 133.502151, 18.682259, 17.738, GO5096_LC|GO5100_LC 211904453, 132.45886, 18.792446, 16.522, GO5096_LC|GO5100_LC 211908963, 130.421817, 18.860205, 17.798, GO5096_LC|GO5100_LC 211912427, 131.957142, 18.911972, 15.062, GO5096_LC|GO5100_LC 211914009, 133.778623, 18.934506, 15.385, GO5096_LC|GO5100_LC 211917022, 130.252263, 18.980809, 15.779, GO5096_LC|GO5100_LC 211918992, 132.505523, 19.00981, 14.536, GO5096_LC|GO5100_LC 211919625, 132.113531, 19.019478, 14.219, GO5096_LC|GO5100_LC 211921278, 132.125883, 19.043827, 14.653, GO5096_LC|GO5100_LC 211921499, 131.997436, 19.047395, 18.326, GO5100_LC 211922015, 133.060254, 19.054525, 17.537, GO5096_LC|GO5100_LC 211923402, 132.35077, 19.074284, 14.083, GO5007_LC|GO5096_LC|GO5100_LC 211923455, 132.34119, 19.074996, 12.912, GO5029_LC|GO5100_LC 211927298, 132.075749, 19.133559, 16.341, GO5096_LC|GO5100_LC 211933059, 132.110655, 19.221451, 15.965, GO5096_LC|GO5100_LC 211934302, 133.029255, 19.239798, 17.658, GO5096_LC|GO5100_LC 211934576, 132.599104, 19.243864, 15.99, GO5096_LC|GO5100_LC 211938359, 132.462362, 19.299498, 17.83, GO5096_LC|GO5100_LC 211941123, 132.816378, 19.342028, 14.57, GO5096_LC|GO5100_LC 211941979, 130.224114, 19.354947, 14.897, GO5100_LC 211942979, 132.644324, 19.369341, 13.907, GO5096_LC|GO5100_LC 211949328, 130.989495, 19.462812, 17.303, GO5096_LC|GO5100_LC 211950716, 129.923616, 19.483471, 17.518, GO5018_LC|GO5024_LC|GO5026_LC|GO5048_LC|GO5100_LC 211952297, 132.117672, 19.50765, 16.491, GO5100_LC 211957334, 129.604693, 19.585438, 17.432, GO5100_LC 211957956, 129.601364, 19.594971, 15.468, GO5100_LC 211960271, 130.521384, 19.629023, 17.049, GO5096_LC|GO5100_LC 211977881, 129.574708, 19.899258, 17.758, GO5096_LC|GO5100_LC 211980011, 124.910837, 19.932459, 14.63, GO5096_LC|GO5100_LC 212000488, 127.031452, 20.262297, 17.972, GO5096_LC|GO5100_LC 212008697, 126.329011, 20.398103, 16.199, GO5096_LC|GO5100_LC 212019842, 133.669594, 20.583589, 14.11, GO5096_LC|GO5100_LC 212027509, 133.69514, 20.713055, 15.838, GO5096_LC|GO5100_LC 212028062, 126.617076, 20.721901, 15.257, GO5096_LC|GO5100_LC 212069773, 126.137363, 21.451722, 17.413, GO5100_LC 212070016, 126.530859, 21.456408, 14.603, GO5100_LC 212071280, 126.925096, 21.4791, 14.211, GO5096_LC|GO5100_LC 212071789, 127.510519, 21.488659, 14.282, GO5096_LC|GO5100_LC 212074157, 128.026867, 21.532439, 17.011, GO5096_LC|GO5100_LC 212081459, 126.523055, 21.667276, 15.636, GO5096_LC|GO5100_LC 212083530, 126.755805, 21.706805, 14.088, GO5096_LC|GO5100_LC 212100683, 128.15788, 22.035143, 17.498, GO5096_LC|GO5100_LC 212105869, 131.057706, 22.136444, 15.907, GO5096_LC|GO5100_LC 212108595, 131.177587, 22.19076, 17.654, GO5096_LC|GO5100_LC 212108989, 131.047043, 22.198271, 17.406, GO5096_LC|GO5100_LC 212131831, 131.116483, 22.655381, 16.061, GO5096_LC|GO5100_LC