NOAO >   Observing Info >   Approved Programs >   2017A-0272

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Program Information for 2017A-0272


PI: Michael Kelley, U. of Maryland, msk@astro.umd.edu
Address: Department of Astronomy, 4296 Stadium Dr, College Park, MD 20742 USA

CoI: Matthew M Knight, U. of Maryland
CoI: Dennis Bodewits, U. of Maryland
CoI: Lori Feaga, U. of Maryland
CoI: Adam McKay, U. of Texas, Austin
CoI: Silvia Protopapa, U. of Maryland
CoI: Colin Snodgrass, The Open University
CoI: Tony L Farnham, U. of Maryland
CoI: Diane Wooden, NASA Ames Research Center

Title: Cometary Orbital Trends

Abstract: We propose a 1-night program to image 12 comets with SOAR/SOI in 2017A as part of our Cometary Orbital Trends project. Our primary targets are C/2012 K1 (Pan STARRS), 41P/Tuttle-Giacobini-Kresak (TGK), and 71P/Clark. Comet K1 will be at a heliocentric distance of 10~au, and photometry of this comet will be diagnostic of the driver of activity (CO$_2$ or CO) at this large distance. Comets TGK and Clark will be near perihelion, and close to the Earth (0.2 to 0.6~au), allowing us to measure inner-coma structures for comparison with Spitzer- based imaging of their CO$_2$ comae, and dust color for comparison with our near-IR spectral survey of water ice in comets. Images and photometry of all targets will be incorporated into our project, which is following at least 22 comets (currently 12 Jupiter-family, 10 Oort cloud) over as wide a range of heliocentric distances and times as possible.

Program Type: Standard/Solar System

Scheduled Nights:
Run 1 (2017A):  SOAR/SOI -- 1n on Jul 02 2017


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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