Personal profile
Research interests
I am a theoretical astrophysicist focusing on understanding accretion discs using numerical simulations. My research tries to connect 3D simulations of accretion discs to observations from facilities like ALMA to better understand how discs evolve. I consider a wide range of accretion discs from discs formed around black holes all the way down to planet forming discs around young stars. In particular, I am very interested in distorted discs, where the disc has a non-flat geometry.
I am also an expert on the numerical method known as smoothed particle hydrodynamics (SPH). This method allows us to simulate otherwise difficult geometries straightforwardly and is commonly used in astrophysics.
I am currently offering research projects considering planet formation in warped discs, connecting observations and simulations of warped discs and related projects. If you are interested please get in contact.
Research area keywords
- accretion discs
- hydrodynamics
- smoothed particle hydrodynamics
- black holes
- protoplanetary discs
- white dwarf discs
- distorted discs
Collaborations and top research areas from the last five years
Projects
- 1 Active
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Solving the mysteries of warped discs
Nealon, R. (Primary Chief Investigator (PCI))
3/11/25 → 2/11/30
Project: Research
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Adaptive particle refinement for compressible smoothed particle hydrodynamics
Nealon, R. & Price, D. J., 27 Jan 2025, In: Publications of the Astronomical Society of Australia. 42, 14 p., e016.Research output: Contribution to journal › Article › Research › peer-review
Open Access1 Link opens in a new tab Citation (Scopus) -
Disc–planet misalignment from an unstable triple system: IRAS04125
Nealon, R., Smallwood, J. L., Aly, H., Winter, A. J., Longarini, C., Cuello, N., Veras, D. & Alexander, R., Jun 2025, In: Monthly Notices of the Royal Astronomical Society: Letters. 540, 1, p. L84-L90 7 p.Research output: Contribution to journal › Article › Research › peer-review
Open Access5 Link opens in a new tab Citations (Scopus) -
Evidence for Supermassive Black Hole Binaries
Krause, M. G. H., Bourne, M. A., Britzen, S., Foord, A., Greene, J. E., Habouzit, M., Horton, M. A., Mayer, L., Middleton, H., Nealon, R., Sisk-Reynés, J. M., Reynolds, C. S. & Sijacki, D., 10 Nov 2025, In: Publications of the Astronomical Society of Australia. 42, 18 p., e162.Research output: Contribution to journal › Review Article › Research › peer-review
Open Access -
Leading and trailing spiral arms in a nearly broken protoplanetary disc
Rowther, S., Nealon, R., Alexander, R. & Meru, F., Sept 2025, In: Monthly Notices of the Royal Astronomical Society. 542, 2, p. 1430-1442 13 p.Research output: Contribution to journal › Article › Research › peer-review
Open Access2 Link opens in a new tab Citations (Scopus) -
Modelling a transiting circumbinary disc in the HD98800 system
Faruqi, A., Kennedy, G., Nealon, R. & Rowther, S., Mar 2025, In: Monthly Notices of the Royal Astronomical Society. 537, 3, p. 2516-2526 11 p.Research output: Contribution to journal › Article › Research › peer-review
Open Access2 Link opens in a new tab Citations (Scopus)