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Current research projects include: using observations and theoretical studies of the Kuiper belt to understand the dynamical history of the outer solar system, coupling dynamical studies to observational studies to understand active Centaurs and their transition to the Jupiter family comet population, and exploring the orbital dynamics of the diverse planetary system architectures discovered by the Kepler mission and other exoplanet searches. I am a member of the Outer Solar System Origins Survey (OSSOS) collaboration and the LSST Solar System Science Collaboration.Show Less
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Courses
- TUHODThe Universe and Humanity: Origin and Destiny
Grants
- Tools for Advanced Dynamical Characterization of Solar System Small Bodies
Principal Investigator (PI)
2022
$153.4K
Active - Alien Earths: Which Nearby Planetary Systems Are Likely to Host Habitable Planets and Life?
Co-Investigator (COI)
2021
$2.8M
Active - Constraining Neptune's Migration Using the Surface Properties of Resonant Trans-Neptunian Objects
Principal Investigator (PI)
2020
$555.5K
Active - Dynamics of Sticky Resonances and Detached Kuiper Belt Objects
Principal Investigator (PI)
2019
$248.3K
Active - Kuiper Belt Dynamics with a Distant Unseen Planet
Co-Investigator (COI)
2018
$339.6K
Active - Distribution of Planet Masses, Planet-Planet Separations and Dynamical Lifetimes of Planetary Systems
Co-Investigator (COI)
2018
$320.9K
Active - Dynamical Characterization of Solar System Small Bodies
Principal Investigator (PI)
2021
$20.0K
- Current Dynamics of Neptune's Distant Mean Motion Resonances
Principal Investigator (PI)
2017
$70.7K
- Current Dynamics of Neptune's Mean Motion Resonances
Principal Investigator (PI)
2015
$31.6K
News
- Beyond Jupiter, Researchers Discovered a 'Cradle of Comets'
2019
- UA Scientists and the Curious Case of the Warped Kuiper Belt
2017
- More Evidence for Ninth Planet on Solar System's Fringes
2016
Publications (77)
Recent
- Col-OSSOS: The Two Types of Kuiper Belt Surfaces
2023
- The Hot Main Kuiper Belt Size Distribution from OSSOS
2023
- Orbital dynamics landscape near the most distant known trans-Neptunian objects
2022
- Col-OSSOS: The Distribution of Surface Classes in Neptune's Resonances
2022
- OSSOS. XXVI. On the Lack of Catastrophic Collisions in the Present Kuiper Belt
2022
- Dynamical Population of Comet Reservoirs
2022
- 29P/Schwassmann–Wachmann 1: A Rosetta Stone for Amorphous Water Ice and CO↔ CO2 Conversion in Centaurs and Comets?
2022
- Col-OSSOS: Probing Ice Line/Color Transitions within the Kuiper Belt’s Progenitor Populations
2022
- Free Inclinations for Trans-Neptunian Objects in the Main Kuiper Belt
2022
- The Comet Highway
2022
- Close enough? How variations in the giant planets' final orbits in migration simulations affect predicted resonant transneptunian populations
2022
- The Transition from the Kuiper Belt to the Jupiter-Family (Comets)
2022
- OSSOS XXV: Large Populations and Scattering–Sticking in the Distant Trans-Neptunian Resonances
2022
- K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System
2021
- OSSOS. XXI. Collision Probabilities in the Edgeworth–Kuiper Belt
2021
- OSSOS: The eccentricity and inclination distributions of the stable neptunian Trojans
2021
- OSSOS. XXIII. 2013 VZ70 and the Temporary Coorbitals of the Giant Planets
2021
- Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters
2021
- Contemporaneous Multiwavelength and Precovery Observations of the Active Centaur P/2019 LD2 (ATLAS)
2021
- OSSOS Finds an Exponential Cutoff in the Size Distribution of the Cold Classical Kuiper Belt
2021
- Transneptunian Space
2021
- Col-OSSOS: The Distinct Color Distribution of Single and Binary Cold Classical KBOs
2021
- Carbon Chain Depletion of 2I/Borisov
2020
- Active Primordial Bodies: Exploration of the primordial composition of ice-rich planetesimals and early-stage evolution in the outer solar system
2020
- Dynamical Instabilities in Systems of Multiple Short-period Planets Are Likely Driven by Secular Chaos: A Case Study of Kepler-102
2020
- Col-OSSOS: Compositional homogeneity of three Kuiper belt binaries
2020
- OSSOS. XVII. An upper limit on the number of distant planetary objects in the Solar System
2020
- Strength In Diversity: Small Bodies as the Most Important Objects in Planetary Sciences
2020
- Machine learning classification of Kuiper belt populations
2020
- A dearth of small members in the Haumea family revealed by OSSOS
2020
- P/2019 LD2 (ATLAS): An Active Centaur in Imminent Transition to the Jupiter Family
2020
- An Extremely Temporary Co-orbital: The Dynamical State of Active Centaur 2019 LD2
2020
- Cbet 4821: 20200802: Comet P/2019 LD2 (atlas)
2020
- OSSOS XX: The Meaning of Kuiper Belt Colors
2020
- Physical Characterization of the 2017 December Outburst of the Centaur 174P/Echeclus
2019
- Col-OSSOS: The Colors of the Outer Solar System Origins Survey
2019
- OSSOS. XIX. Testing Early Solar System Dynamical Models Using OSSOS Centaur Detections
2019
- Language-Agnostic Optimization and Parallelization for Interpreted Languages
2019
- OSSOS. XVIII. Constraining Migration Models with the 2:1 Resonance Using the Outer Solar System Origins Survey
2019
- OSSOS-XI. No active centaurs in the Outer Solar System Origins Survey
2019
- OSSOS. XIII. Fossilized Resonant Dropouts Tentatively Confirm Neptune’s Migration Was Grainy and Slow
2019
- OSSOS. XII. Variability Studies of 65 Trans-Neptunian Objects Using the Hyper Suprime-Cam
2019
- Not a Simple Relationship between Neptune’s Migration Speed and Kuiper Belt Inclination Excitation
2019
- Not a simple relationship between Neptune's migration speed and Kuiper belt inclination excitation
2019
- A Software Roadmap for Solar System Science with the Large Synoptic Survey Telescope
2019
- OSSOS. XIV. The Plane of the Kuiper Belt
2019
- 29P/Schwassmann–Wachmann 1, A Centaur in the Gateway to the Jupiter-family Comets
2019
- OSSOS. VII. 800+ Trans-Neptunian Objects—The Complete Data Release
2018
- Trans-Neptunian Objects Transiently Stuck in Neptune’s Mean-motion Resonances: Numerical Simulations of the Current Population
2018
- OSSOS. IX. Two Objects in Neptune's 9: 1 Resonance—Implications for Resonance Sticking in the Scattering Population
2018
- The Effects of Filter Choice on Outer Solar System Science with LSST
2018
- OSSOS XII: Variability studies of 65 Trans-Neptunian Objects using the Hyper Suprime-Cam
2018
- OSSOS. VIII. The Transition between Two Size Distribution Slopes in the Scattering Disk
2018
- Neptune's 5: 2 Resonance in the Kuiper Belt
2018
- A Northern Ecliptic Survey for Solar System Science
2018
- Handling Nested Parallelism and Extreme Load Imbalance in an Orbital Analysis Code
2017
- The curiously warped mean plane of the Kuiper Belt
2017
- OSSOS. VI. Striking Biases in the Detection of Large Semimajor Axis Trans-Neptunian Objects
2017
- OSSOS. V. Diffusion in the Orbit of a High-perihelion Distant Solar System Object
2017
- Col-OSSOS: z-band photometry reveals three distinct TNO surface types
2017
- OSSOS: V. Diffusion in the orbit of a high-perihelion distant Solar System object
2017
- All planetesimals born near the Kuiper belt formed as binaries
2017
- OSSOS. II. A SHARP TRANSITION IN THE ABSOLUTE MAGNITUDE DISTRIBUTION OF THE KUIPER BELT’S SCATTERING POPULATION
2016
- OSSOS III—RESONANT TRANS-NEPTUNIAN POPULATIONS: CONSTRAINTS FROM THE FIRST QUARTER OF THE OUTER SOLAR SYSTEM ORIGINS SURVEY
2016
- CORRALLING A DISTANT PLANET WITH EXTREME RESONANT KUIPER BELT OBJECTS
2016
- OSSOS. II. A Sharp Transition in the Absolute Magnitude Distribution of the Kuiper Belt's Scattering Population
2016
- OSSOS. IV. Discovery of a Dwarf Planet Candidate in the 9: 2 Resonance with Neptune
2016
- The Outer Solar System Origins Survey. I. Design and First-quarter Discoveries
2016
- Consolidating and Crushing Exoplanets: Did it happen here?
2015
- The 5:1 Neptune Resonance as Probed by CFEPS: Dynamics and Population
2015
- Do Centaurs preserve their source inclinations?
2013
- Dynamical Studies of the Kuiper Belt and the Centaurs
2013
- The effect of orbital evolution on the Haumea (2003 EL61) collisional family
2012
- Inclination Mixing in the Classical Kuiper Belt
2011
- The scattered disk as the source of the Jupiter family comets
2008
- Distribution and escape of molecular hydrogen in Titan's thermosphere and exosphere
2008