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School of Physical and Chemical Sciences

Dr Craig Agnor

Craig

Senior Lecturer in Astronomy

Email: c.b.agnor@qmul.ac.uk
Telephone: 020 7882 3464
Room Number: G. O. Jones Building, Room 505

Profile

The aim of my research is to understand the origin of planets and satellites.  I am principally interested in how gravitational dynamics determine the orbital structure of planetary systems and how giant collisions may account for the development of particular planetary characteristics (e.g. large obliquities, satellite formation, thermal excess/deficits).  In this work I utilize a combination of analytic theory and numerical simulation (e.g., N-body orbital integrations, hydrodynamic calculations of planetary collisions) to examine the collisional and dynamical evolution of planets.

In the past my work has addressed a variety of topics in solar system evolution including:

  • The formation of the terrestrial planets and the origin of the Earth/Moon system.
  • The capture of Neptune's large retrograde moon Triton.
  • `Giant Impacts' between planets and the origin of planetary characteristics.
  • Understanding the implications of large-scale orbital migration of the solar system's giant planets.

Teaching

My teaching for this year includes:

  • SPA5241 Planetary Systems 
  • SPA5666 Introduction to Scientific Computing
  • SPA6776 Extended Independent Project
  • SPA6913 Physics Review Project
  • SPA7015 Physics Investigative Project
  • I have also written the module MTH6110 Communicating and Teaching Mathematics that is offered through the School of Mathematical Sciences.

Research

Research Interests:

The aim of my research is to understand the origin of planets and satellites.  I am principally interested in how gravitational dynamics determine the orbital structure of planetary systems and how giant collisions may account for the development of particular planetary characteristics (e.g. large obliquities, satellite formation, thermal excess/deficits).  In this work I utilize a combination of analytic theory and numerical simulation (e.g., N-body orbital integrations, hydrodynamic calculations of planetary collisions) to examine the collisional and dynamical evolution of planets.

In the past my work has addressed a variety of topics in solar system evolution including:

  • The formation of the terrestrial planets and the origin of the Earth/Moon system.
  • The capture of Neptune's large retrograde moon Triton.
  • `Giant Impacts' between planets and the origin of planetary characteristics.
  • Understanding the implications of large-scale orbital migration of the solar system's giant planets.

Publications

    • Tinetti G, Drossart P, Eccleston P et al. (2015), The EChO science case $nameOfConference


    • Tinetti G, Drossart P, Eccleston P et al. (2015), The EChO science case $nameOfConference


    • Tinetti G, Drossart P, Eccleston P et al. (2015), The EChO science case $nameOfConference


    • Liu SF, Agnor CB, Lin DNC et al. (2015), Embryo impacts and gas giant mergers - II. Diversity of hot Jupiters' internal structure $nameOfConference


    • Masters A, Achilleos N, Agnor CB et al. (2014), Neptune and triton: Essential pieces of the solar system puzzle $nameOfConference


    • Arridge CS, Achilleos N, Agarwal J et al. (2014), The science case for an orbital mission to Uranus: Exploring the origins and evolution of ice giant planets $nameOfConference


    • Liu S-F, Agnor CB, Lin DNC et al. (2014), Embryo impacts and gas giant mergers II: Diversity of Hot Jupiters' internal structure $nameOfConference


    • Masters A, Achilleos N, Agnor CB et al. (2013), Neptune and Triton: Essential pieces of the Solar System puzzle $nameOfConference


    • Campanella G, Nelson RP, Agnor CB (2013), Possible scenarios for eccentricity evolution in the extrasolar planetary system HD 181433 $nameOfConference


    • Campanella G, Nelson RP, Agnor CB (2013), Possible scenarios for eccentricity evolution in the extrasolar planetary system HD 181433 $nameOfConference


    • Tinetti G, Beaulieu JP, Henning T et al. (2012), EChO $nameOfConference


    • Arridge CS, Agnor CB, Andre N et al. (2012), Uranus Pathfinder: exploring the origins and evolution of Ice Giant planets $nameOfConference


    • Agnor CB, Lin DNC (2012), ON THE MIGRATION OF JUPITER AND SATURN: CONSTRAINTS FROM LINEAR MODELS OF SECULAR RESONANT COUPLING WITH THE TERRESTRIAL PLANETS $nameOfConference


    • Tinetti G, Beaulieu JP, Henning T et al. (2011), EChO - Exoplanet Characterisation Observatory $nameOfConference


    • Agnor CB, Lin DNC (2011), On the Migration of Jupiter and Saturn: Constraints from Linear Models of Secular Resonant Coupling with the Terrestrial Planets $nameOfConference


    • Tinetti G, Cho JYK, Griffith CA et al. (2011), The science of EChO $nameOfConference


    • Li SL, Agnor CB, Lin DNC (2010), EMBRYO IMPACTS AND GAS GIANT MERGERS. I. DICHOTOMY OF JUPITER AND SATURN'S CORE MASS $nameOfConference


    • Beurle K, Murray CD, Williams GA et al. (2010), DIRECT EVIDENCE FOR GRAVITATIONAL INSTABILITY AND MOONLET FORMATION IN SATURN's RINGS $nameOfConference


    • Philpott CM, Hamilton DP, Agnor CB (2010), Three-body capture of irregular satellites: Application to Jupiter $nameOfConference


    • Li SL, Agnor CB, Lin DNC (2010), Embryo impacts and gas giant mergers I: Dichotomy of Jupiter and Saturn's core mass $nameOfConference


    • Philpott C, Hamilton DP, Agnor CB (2009), Three-Body Capture of Irregular Satellites: Application to Jupiter $nameOfConference


    • Nimmo F, Agnor CB (2008), Dynamical and thermal implications of Martian core formation timescales $nameOfConference

    • Nimmo F, Hart SD, Korycansky DG et al. (2008), Implications of an impact origin for the martian hemispheric dichotomy. $nameOfConference


    • Li S-L, Agnor C, Lin DNC (2007), Giant impact, planetary merger, and diversity of planetary-core mass $nameOfConference


    • Asphaug E, Agnor CB, Scott ERD et al. (2006), Meteoritical and planetological consequences of "hit and run" non-accretionary giant impacts $nameOfConference

    • Agnor CB, Hamilton DP (2006), Neptune's capture of its moon Triton in a binary-planet gravitational encounter $nameOfConference


    • Nimmo F, Agnor CB (2006), Isotopic outcomes of N-body accretion simulations: Constraints on equilibration processes during large impacts from HfAV observations $nameOfConference


    • Asphaug E, Agnor CB, Williams Q (2006), Hit-and-run planetary collisions $nameOfConference


    • Agnor C, Asphaug E (2004), Accretion efficiency during planetary collisions $nameOfConference


    • Asphaug E, Agnor C, Petit JM et al. (2003), TIDAL DISRUPTION OF PRIMORDIAL ASTEROIDS: A NEW PATHWAY FOR METEORITE PETROGENESIS $nameOfConference

    • AGNOR CB, Levison HF (2003), The Role of Giant Planets in Terrestrial Planet Formation $nameOfConference


    • Agnor CB, Ward WR (2002), Damping of terrestrial-planet eccentricities by density-wave interactions with a remnant gas disk $nameOfConference


    • Ward WR, Agnor CB, Tanaka H (2001), On the accretion of distant planets $nameOfConference

Supervision

This is not an exhaustive list and I would be happy to discuss other project possibilities.

Project Title
Giant Planet Migration in the Solar System
Collisional Evolution of Planets and Satellites
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