8th Phantom Users
Workshop 2026
How do stars and planets form? How do black holes accrete? How does dust form in the winds of giant stars? How does the common envelope get ejected?
All of these questions can be answered using Phantom, a smoothed particle hydrodynamics code, MCFOST, a class-leading radiative transfer code, and Shamrock, a GPU-first SPH code in the Phantom family.
We are delighted to host the 8th Phantom code family users workshop in 2026 at Macquarie University in Sydney, Australia.
The goal of a Phantom workshop is to bring together users to foster collaboration, help existing users learn how to use the code better, explore how new features can be applied across astrophysical problems, extend the codebase to solve new physics or problems, and create new setups for mutual collaboration.
1. To consolidate development efforts
2. To set a roadmap for development priorities
3. To grow the user community, and especially to encourage sideways interaction between users
We will set each afternoon of the workshop as a hackfest, to collaboratively implement new features and tests
Dates: Tuesday 9th - Friday 12th June 2026
Venue: Macquarie University, Sydney, Australia
Sponsors: We are grateful to AFRAN for sponsorship.
Each day will feature science talks in the morning (from 9:00 am), with collaborative hack sessions from 1:00–5:00 pm. Coffee break 10:15–10:45; lunch 12:00–1:00. European remote talks are scheduled at 5:00 pm where indicated. A welcome event will be held on the evening of the first day (Tuesday, 9th June). The conference dinner will be held on Thursday 11th June (evening).
Recorded talks will be posted on the Phantom YouTube channel after the workshop. Slides and video links in the schedule will be added as they become available.
| Time | Speaker | Type | Video |
|---|---|---|---|
| 9:00 – 9:30 | Daniel Price Phantom v2026: new developments and directions |
Introduction · 30 min | — |
| 9:30 – 9:45 | Kayla Martin The Light Common Envelope: A New Channel for Post-Giant Binaries |
Contributed · 15 min | — |
| 9:45 – 10:15 | Antoine Alaguero Dust Growth with Phantom |
Invited · 30 min | — |
| 10:15 – 10:45 | Coffee break | ||
| 10:45 – 11:15 | Camille Landri Simulating chemistry in astrophysical environments |
Invited · 30 min | — |
| 11:15 – 11:30 | Jack Nibbs Title TBA |
Contributed · 15 min | — |
| 11:30 – 11:45 | Rebecca Nealon Recent improvements in APR |
Contributed · 15 min | — |
| 11:45 – 12:00 | Chunliang Mu Title TBA |
Contributed · 15 min | — |
| 12:00 – 13:00 | Lunch | ||
| 13:00 – 17:00 | Afternoon hack session | ||
| Evening · remote session (Europe) · 5:00 pm | |||
| 17:00 – 17:15 | Sam Beckers 3D chemical modelling of AGB outflows |
Contributed · 15 min Remote | — |
| 17:15 – 17:45 | Yann Bernard Title TBA |
Invited · 30 min Remote | — |
| 17:45 – 18:00 | Taj Jankovič Radiation-hydrodynamics of star-disc collisions for quasi-periodic eruptions |
Contributed · 15 min Remote | — |
| 18:30 onwards | Welcome event (wine and cheese) | ||
| Time | Speaker | Type | Video |
|---|---|---|---|
| 9:00 – 9:45 | Alison Young Emmy Noether prize lecture |
Emmy Noether prize · 45 min | — |
| 9:45 – 10:00 | Ali Pourmand Second Generation Planet Formation |
Contributed · 15 min | — |
| 10:00 – 10:15 | Ruiqi Yang Dynamics and Accretion Variability of Misaligned Circumbinary Discs around Eccentric Binaries |
Contributed · 15 min | — |
| 10:15 – 10:45 | Coffee break | ||
| 10:45 – 11:15 | Josh Calcino The messy left-overs of star formation: Morphological, kinematic, and chemical signatures of infall |
Invited · 30 min | — |
| 11:15 – 11:30 | Owen Vermeulen AGB star outflows: Implementing pulsations |
Contributed · 15 min | — |
| 11:30 – 12:00 | Ariel Chitan A Case Study of Disc Disruption and Accretion Dynamics in Supermassive Black Hole Binaries: Hydrodynamic Simulations of the Blazar OJ 287 |
Invited · 30 min | — |
| 12:00 – 13:00 | Lunch | ||
| 13:00 – 17:00 | Afternoon hack session | ||
| Time | Speaker | Type | Video |
|---|---|---|---|
| 9:00 – 9:30 | Timothée David-Cléris Title TBA |
Invited · 30 min | — |
| 9:30 – 9:45 | Ana Juarez 3D hydrodynamic simulations of accretion disks, new Phantom setup |
Contributed · 15 min | — |
| 9:45 – 10:00 | Angelos Karakonstantakis General Relativistic hydrodynamic modelling of tidal disruption by Naked Singularities |
Contributed · 15 min | — |
| 10:00 – 10:15 | Davide Dionese The LSP Puzzle: Cooling and Dust in Binary AGB Winds |
Contributed · 15 min | — |
| 10:15 – 10:45 | Coffee break | ||
| 10:45 – 11:00 | Fangyi (Fitz) Hu Tidal disruption events |
Contributed · 15 min | — |
| 11:00 – 11:15 | Megha Sharma Are most detected tidal disruption events partial? |
Contributed · 15 min Remote | — |
| 11:15 – 11:30 | Arcelia Hermosillo Ruiz A Stellar Flyby in Action: Untangling the Dynamics of HD141569's Hybrid Disc |
Contributed · 15 min | — |
| 11:30 – 12:00 | Sahl Rowther The impact of stars and the star-forming environment |
Invited · 30 min | — |
| 12:00 – 13:00 | Lunch | ||
| 13:00 – 17:00 | Afternoon hack session | ||
| Evening · remote session (Europe) · 5:00 pm | |||
| 17:00 – 17:15 | Pratishtha Rawat From Spirals to Rings: Warps in dusty, self-gravitating protoplanetary discs |
Contributed · 15 min Remote | — |
| 17:15 – 17:30 | Rafael Martinez-Brunner Exploring the Gas-Dust-Planetesimals Interplay in White Dwarf Debris Discs |
Contributed · 15 min Remote | — |
| 19:00 onwards | Conference dinner | ||
| Time | Speaker | Type | Video |
|---|---|---|---|
| 9:00 – 9:30 | Jeremy Smallwood Determining the Origin of Rogue Planets: Born Free or Kicked Out? |
Invited · 30 min Remote | — |
| 9:30 – 9:45 | Jacksen Narvaez Coral Magnetorotational Instability in Global Disc Simulations using the Smoothed Particle Magnetohydrodynamics Method |
Contributed · 15 min Remote | — |
| 9:45 – 10:15 | Orsola De Marco Stellar Interactions |
Invited · 30 min | — |
| 10:15 – 10:45 | Coffee break | ||
| 12:00 – 13:00 | Lunch | ||
| 13:00 – 17:00 | Afternoon hack session | ||
Antoine Alaguero - IPAG
Lachlan Barnes - Macquarie University
Sam Beckers (remote) - Leiden Observatory
Yann Bernard (remote) - IPAG, CNRS
Tanmoy Bhowmik (remote) - Shahjalal University of Science and Technology
Josh Calcino - Tsinghua University
Ariel Chitan - University of Western Ontario
Jacksen Narvaez Coral (remote) - Memorial University of Newfoundland
Cameron Davidson - The University of Sydney
Davide Dionese - Institut d'Astronomie et d'Astrophysique - ULB
Vardan Elbakyan (remote) - University of Duisburg-Essen
Marzieh Faraji (remote) - IPM
Ana Lourdes Juarez Garcia - Macquarie University
Fangyi (Fitz) Hu - Monash University
Taj Jankovič - Institute of Physics of the Czech Academy of Sciences
Manogna D K (remote) - NTHU
Angelos Karakonstantakis - Nicolaus Copernicus Astronomical Center, CAMK-PAN
Camille Landri - Institute of Astronomy, KU Leuven
Sanja Lazarevic - WSU
Orsola De Marco - Macquarie University
Kayla Martin - Macquarie University
Rafael Martinez-Brunner (remote) - University of Warwick
Jaime Andres Alvarado Montes - Macquarie University
Chunliang Mu - Macquarie University
Michael Munnelly (remote) - University of Oklahoma / Baylor University
Rebecca Nealon - Monash University
Stephen Neilson - Macquarie University
Jack Nibbs - Macquarie University
Alia Pollard (remote) - Monash University
Ali Pourmand - Macquarie University
Daniel Price - Monash University
Toon De Prins - Macquarie University & KU Leuven
Pratishtha Rawat (remote) - University of Warwick
Sahl Rowther - University of Warwick
Arcelia Hermosillo Ruiz - University of Exeter
Megha Sharma (remote) - Monash University
Lionel Siess (remote) - Universite Libre de Bruxelles
Jeremy Smallwood (remote) - University of Oklahoma
Owen Vermeulen - KU Leuven
Ruiqi Yang - Sun Yat-sen University
The workshop will be held at:
17 Wally's Walk, room 330 (this is on the third floor which can be reached the elevator),
Macquarie University,
Sydney, New South Wales, Australia
Registration and abstract submission are NOW OPEN using the form below:
Important deadlines:
If you do not wish to give a talk or poster, just enter "none" for the title and abstract.
The registration form will ask if you accept your presentation being recorded and publicly posted on the Phantom YouTube page.
The conference dinner will be held at 7pm on Wednesday 10 June:
DeVita Restaurant
Manly, New South Wales, Australia
The dinner will cost $20 for students and $30 for non-students.
To get to Manly,
Both take just over one hour. All transports in Sydney can be accessed tapping a credit card or your phone (if your card is set up there).
Participation in the workshop is subject to the Phantom Workshop Code of Conduct
daniel.price@monash.edu
(please include "Phantom users workshop" in the title for email queries)
SCIENTIFIC ORGANISING COMMITTEE
Daniel Price
Terrence Tricco
Rebecca Nealon
LOCAL ORGANISING COMMITTEE
Orsola De Marco
Rebecca Nealon
Daniel Price
Ali Pourmand
Ana Juarez
Chunliang Mu
Jack Nibbs
Kayla Martin