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High-Spatial-Resolution K-Band Imaging of Select K2 Campaign Fields

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arxiv 1712.02285 v1 pith:OEUJWDYQ submitted 2017-12-06 astro-ph.SR astro-ph.GAastro-ph.IM

High-Spatial-Resolution K-Band Imaging of Select K2 Campaign Fields

classification astro-ph.SR astro-ph.GAastro-ph.IM
keywords fieldscampaignselecttargetsarcsechigh-spatial-resolutionimagesk-band
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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NASA's K2 mission began observing fields along the ecliptic plane in 2014. Each observing campaign lasts approximately 80 days, during which high-precision optical photometry of select astrophysical targets is collected by the Kepler spacecraft. Due to the 4 arcsec pixel scale of the Kepler photometer, significant blending between the observed targets can occur (especially in dense fields close to the Galactic plane). We undertook a program to use the Wide Field Camera (WFCAM) on the 3.8 m United Kingdom InfraRed Telescope (UKIRT) to collect high-spatial-resolution near-infrared images of targets in select K2 campaign fields, which we report here. These 0.4 arcsec resolution K-band images offer the opportunity to perform a variety of science, including vetting exoplanet candidates by identifying nearby stars blended with the target star and estimating the size, color, and type of galaxies observed by K2.

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