# Summary of K2 Program GO5036

Title: Ultracool Dwarfs: Clouds, Flares, and Exoplanets

PI: Gizis, John E. (University of Delaware)
CoIs: Williams, Peter K G; Paudel, Rishi R; Schmidt, Sarah Jane; Burgasser, Adam J

We propose to observe nearby ultracool dwarfs using the Kepler K2 mission to characterize their cloud/weather properties, measure their flare rates, and detect their planetary companions. Like gas giant planets, very-low-mass stars and brown dwarfs form condensate clouds in their atmospheres. K2 can unique characterize variability due to these clouds, both rotation modulation on a timescale of hours and weather evolution of the clouds on timescales from days to months. Magnetic activity changes dramatically at the stellar/substellar hydrogen-burning limits, but some ultracool dwarfs are known to flare.  We will measure the white light flare rate in well-defined statistical samples as a function of effective temperature, rotation rate, and age. Flares are tied to magnetic reconnection rates and the energy budget. We also aim to detect transiting exoplanets by continuing to monitor each available ultracool dwarf in K2 campaigns; brown dwarfs, gas giants, and even large rocky planets are detectable.  The K2 Campaigns 4 and 5 targets include nearby field late-M and L dwarfs.

# Targets requested by this program that have been observed (20)
EPIC ID, RA (J2000) [deg], Dec (J2000) [deg], magnitude, Investigation IDs
211328277, 130.888478, 10.413071, 17.798, GO5036_SC|GO5081_LC|GO5030_LC|GO5036_LC
211329075, 127.983268, 10.428261, 14.951, GO5036_SC|GO5039_SC|GO5036_LC|GO5039_LC
211332457, 128.848607, 10.492178, 14.465, GO5036_SC|GO5036_LC|GO5081_LC
211357895, 132.649725, 10.954338, 18.0, GO5023_LC|GO5036_LC|GO5081_LC|GO5030_LC
211628806, 127.277674, 14.939601, 16.15, GO5036_SC|GO5036_LC|GO5081_LC|GO5030_LC
211680042, 127.842566, 15.647536, 17.266, GO5036_LC|GO5081_LC|GO5030_LC
211727819, 129.38677, 16.293901, 18.144, GO5036_LC|GO5081_LC|GO5030_LC
211891128, 129.218309, 18.595991, 18.046, GO5036_LC|GO5081_LC|GO5030_LC
211962038, 126.677623, 19.656242, 17.713, GO5036_SC|GO5036_LC|GO5081_LC
211963497, 137.450931, 19.678574, 16.132, GO5036_SC|GO5039_SC|GO5036_LC|GO5081_LC|GO5030_LC|GO5039_LC
211970944, 124.469425, 19.791103, 17.037, GO5036_LC|GO5081_LC
211978512, 136.379267, 19.909292, 17.434, GO5036_LC|GO5081_LC|GO5030_LC
211981633, 129.499046, 19.95775, 17.889, GO5036_LC|GO5081_LC|GO5030_LC
212028433, 127.31235, 20.728119, 18.205, GO5036_LC|GO5048_LC|GO5081_LC
212102189, 127.613506, 22.062668, 17.133, GO5036_LC|GO5081_LC
212111554, 134.522912, 22.249502, 16.67, GO5036_LC|GO5081_LC|GO5030_LC
212127137, 133.496552, 22.560087, 17.818, GO5036_LC|GO5081_LC|GO5030_LC
212128548, 134.199742, 22.58839, 17.151, GO5023_LC|GO5036_LC|GO5057_LC|GO5081_LC|GO5030_LC
212136544, 127.858677, 22.749638, 16.323, GO5036_LC|GO5081_LC
212178513, 127.899756, 23.697451, 18.19, GO5036_SC|GO5036_LC|GO5011_LC|GO5081_LC