NOAO >   Observing Info >   Approved Programs >   2019A-0095

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Program Information for 2019A-0095


PI: Charles Schambeau, U. of Central Florida, charles.schambeau@ucf.edu
Address: Florida Space Institute, 12354 Research Parkway, Suite 214, Orlando, Florida 32826-6359 USA

CoI: Yanga Fernandez, U. of Central Florida
CoI: Matthew M Knight, U. of Maryland
CoI: Karen J Meech, U. of Hawaii
CoI: Nalin Samarasinha, PSI
CoI: Maria Womack, University of South Florida
CoI: Laura Woodney, Cal State San Bernadino
CoI: Simone Ieva, INAF - Osservatorio Astronomico di Roma
CoI: Elena Mazzotta Epifani, INAF - Osservatorio Astronomico di Roma
CoI: Elisabetta Dotto, INAF - Osservatorio Astronomico di Roma

Title: Characterizing the Activity and Behavior of Comets in the Centaur-to- Jupiter Family Transition

Abstract: Observations suggest that the active lifetimes of Jupiter-family comets (JFCs) often start when they are still in the Centaur region, yet the transition from Centaur to JFC happens in a region where water sublimation cannot be the driver of the activity. Our group is investigating the nature of cometary activity in this thermal environment. We propose here to continue an imaging campaign and photometric investigation of a group of known high-perihelion JFCs ({it q} $>$ 4.5 au) and active Centaurs on daily, weekly, and monthly cadences to characterize the population and probe for variability in activity in an environment outside of the water-sublimation region. The cadence of our proposed observations, the long-term nature of our observing campaign, and the strategically selected group of objects targeted by our campaign give us the fidelity necessary for the first time ever to characterize nucleus properties and activity variability for objects in this poorly-studied group, helping to establish links between ensemble properties of objects in this transitional region and ultimately their context to other small-body populations.

Program Type: Standard/Solar System

Scheduled Nights:
Run 1 (2019A):  KP-0.9m/HDI -- 14n on Mar 08 - Mar 14 2019, Apr 06 - Apr 12 2019


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NOAO >   Observing Info >   Approved Programs >   2019A-0095

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