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Jon Ramsey

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Jon P. Ramsey

Origins Post-Doctoral Research Associate


jpramsey (at) virginia.edu
https://orcid.org/0000-0002-3835-3990

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  • NOTE!: Work in progress! (I have only recently switched to using OpenScholar!)

    Welcome!

    I am currently an Origins Post-doctoral Research Associate in Astronomy at the University of Virginia (Dept. of Astronomy) and a member of the Virginia Initiative on Cosmic Origins.

    • Link to my publications on NASA ADS: https://ui.adsabs.harvard.edu/public-libraries/CNGkIqaNQoCSufn0FZKG5g
    • Link to my Google Scholar profile: https://scholar.google.com/citations?user=K5S9mvAAAAAJ&hl=en

     

    My research interests lately focus on topics within, or related to, planet formation, protoplanetary disks and protostellar outflows, such as:

    • Numerical methods for simulation of hydro-, magneto- and radiation hydrodynamics, in particular novel, high performance and adaptive methods;
    • The earliest stages of planet formation, particularly while the protoplanetary accretion disk still dominates (e.g., planetary embryo formation and growth);
    • The chemistry and thermodynamics of protoplanetary disks, in particular things which can affect the disk structure. Molecular and icy chemistry in protoplanetary disks also falls under this umbrella;
    • The launching and collimation of magnetically-driven jets from young stellar objects;
    • Photoevaporation of protoplanetary discs by stellar UV and X-ray photons.
    • Workarounds and approximations to make the calculation of astrochemistry less computationally-intensive!
    • Continuum and line ALMA observations of young disks (Class 0/I) and their associated protostellar outflows at the highest-resolutions.
    • The promise of deep learning in the age of big data in Astronomy to help us analyze and understand star and planet formation.

     

    I have developed or contributed to several software projects over my academic career. In chronological order (most recent first), these are:

    • NIMRAD, a synthetic observation post-processing pipeline for snapshots of MHD simulations of protoplanetary disks (code available upon request).
    • DISPATCH, a next-generation and high-performance framework for astrophysical fluid simulations:
      • Public repository (there's also a private development repository which is frequently updated);
      • Living documentation (always a work in progress; a bit rough around the edges);
    • KROME for astrochemical modelling:
      • Website;
      • Code repository;
      • Schools/"Bootcamps" (Note: There's one happening soon at the end of February 2021!)
    • SASRST: Semi-analytic Solutions for 1-D Radiative Shock Tubes:
      • Code repository;
    • AZEuS adaptive mesh refinement code for astrophysical fluid simulations (code available upon request):
      • Website;
      • Built on David Clarke's ZEUS-3D MHD code.

     

Recent Publications

  • Global Hydromagnetic Simulations of Protoplanetary Disks with Stellar Irradiation and Simplified Thermochemistry
  • Resolving star and planet formation with ALMA
  • Kinematics around the B335 protostar down to au scales
  • MHD simulations of the formation and propagation of protostellar jets to observational length-scales
  • Pebble dynamics and accretion on to rocky planets - II. Radiative models
  • The challenges of modelling microphysics: ambipolar diffusion, chemistry, and cosmic rays in MHD shocks

pagination for recent pubs

  • Recent Pubs 1 of 3
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Contact

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jpramsey (at) virginia.edu
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Department of Astronomy
PO Box 400325
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University of Virginia
22904-4325 Charlottesville, Virginia, USA

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