principal investigator on IRREGULAR AND TIME-VARIABLE STRUCTURES IN SATURN'S MAIN RINGS awarded by NASA SHARED SERVICES CENTER 2011 - 2013 THE SEASONAL AND TEMPORAL EVOLUTION OF SATURN'S FAINT RINGS awarded by NASA SHARED SERVICES CENTER 2012 - 2015
co-principal investigator on FOR THE PARTICIPATION OF PHIL NICHOLSON IN CASSINI VIMS ACTIVITIES awarded by NATL AERONAUTICS & SPACE ADM 2010 - 2014 SATURN LIMB STUDIES: HELIUM, WINDS, AND COMPOSITION awarded by NATL AERONAUTICS & SPACE ADM 2009 - 2013
individual publications academic article Finding the trigger to Iapetus' odd global albedo pattern: Dynamics of dust from Saturn's irregular satellites. Icarus. 215:260-278. 2011 Saturns curiously corrugated C ring. Science. 332:708-711. 2011 Cassini imaging rules out rings around Rhea. Geophysical Research Letters. 37. 2010 Physical characteristics and non-Keplerian orbital motion of "propeller" moons embedded in Saturn's rings. Astrophysical Journal Letters. 718. 2010 Aegaeon (Saturn LIII), a G ring object. Icarus. 207:433-4447. 2010 Cassini Imaging Search Rules Out Rings Around Rhea. Geophysical Research Letters. 37:205. 2010 Physical characteristics and non-Keplerian orbital motion of "propeller" moons embedded in Saturn's rings. Astrophysical Journal Letters. 718. 2010 The shape and dynamics of a heliotropic dusty ringlet in the Cassini division. Icarus. 210:284-297. 2010 Organizing some very tenuous things: Resonant structures in Saturn's faint rings. Icarus. 202:260-279. 2009 The population of propellers in Saturn's A ring. Astronomical Journal. 135. 2008 article Saturns curiously corrugated C ring. Science. 332:708 -711. 2011 An evolving view of Saturn's dynamic rings. Science. 327:1470-1475 . 2010 chapter Diffuse Rings. Cambridge University Press. 511-536. 2009
featured in archived article CU researchers help discover Saturn's 61st moon; could be source for planet's outer ring Cassini offers valuable insight into Saturn's rings Comet collisions could cause rippled planet rings, research shows With Cornell's help, a glorious Saturn steps into the spotlight in New York City
teaching activities ASTRO-4940: Independent Study in Astronomy - Spring 2013 ASTRO-6940: Advanced Study and Research - Spring 2013 ASTRO-4940: Independent Study in Astronomy - Fall 2012 ASTRO-6940: Advanced Study and Research - Fall 2012 ASTRO-1102: Our Solar System - Spring 2012 ASTRO-1104: Our Solar System - Spring 2012 ASTRO-4940: Independent Study in Astronomy - Spring 2012 ASTRO-6940: Advanced Study and Research - Spring 2012 ASTRO-4940: Independent Study - Fall 2011 ASTRO-6940: Advanced Study and Research - Fall 2011