Skip to content

v2026.0.0

Choose a tag to compare

View all tags
@github-actions github-actions released this 06 Mar 07:57
v2026.0.0
80a334c

v2026.0.0 - 6th March 2026

Physics

  • Self-gravity now conserves momentum using a symmetrical FMM solver (Bernard et al. 2026; #699, #749, #770, #790, #797)
  • Tree-based gravity for sink particles implemented, allowing for thousands of sink particles (thanks to Yann Bernard; #620, #627, #700, #727)
  • Winds from multiple sinks supported, with new injection methods (Fibonacci sphere, jets, rotating winds) and high-T cooling (thanks to Lionel Siess, Siméon Deschaux; #746)
  • Sink particles now work fully in General Relativity, including accretion and interactions (thanks to Megha Sharma; #628)
  • Adaptive Particle Refinement (APR) improvements: multiple regions, dynamic region creation (thanks to Rebecca Nealon; #630, #659, #684, #723)
  • APR now works with General Relativity (Hu et al. 2026; #679)
  • Implicit dust drag option is now visible/usable (thanks to Stephane Michoulier; #625)
  • Improved implicit flux-limited diffusion radiation scheme (Lau et al. 2025; #740, #751)
  • Improved mass transfer injection module, including option for resolved accretor (thanks to Ana Juarez and Mike Lau; #616, #619, #644, #756)
  • New streamer and ring injection modules (Longarini et al. 2025; #721)
  • Wind tunnel injection now works for arbitrary wind parameters (#615)
  • Added ability to run wind injection routines with magnetic fields (#652)
  • Radiative cooling approximation (icooling=9) using Modified Lombardi cooling (thanks to Alison Young; #610, #782)
  • Gas+Radiation+Recombination EoS (ieos=24) now includes H2 vibrational/rotational modes (thanks to Mike Lau; #650)
  • Interface for COALA dust growth library added (thanks to Maxime Lombart; #800)
  • Unified orbital dynamics utilities module (#737)
  • Disc viscosity is now a runtime parameter (DISC_VISCOSITY compile option removed) (#696)
  • alpha_dg parameter added for dust growth viscosity, replacing shearparam (thanks to Antoine Alaguero; #763)
  • track_lum option now works with isothermal EOS (#744)
  • Beta cooling now uses actual mass of sink particle or central potential (#787)
  • New merging strategy for sink particles (icreate_sink=2) releasing star seeds (thanks to Yann Bernard; #618)
  • Better timescale criterion for slow-down method (thanks to Yann Bernard; #618)
  • Binary black hole metric added using superposed Kerr-Schild metric (thanks to Alessandro Lupi, Giacomo Fedrigo and Alessia Franchini; #798)

Setup

  • Ability to set up eccentric discs (thanks to Enrico Ragusa; #640, #686, #771)
  • The Orbit Reconstructor^TM allows reconstruction of orbits from observed separation and velocity (#738, #761, #775)
  • New disc+cloud setup for embedding a disc in a cloud, includes locally isothermal EoS temperature floor (Calcino et al. 2025; #667)
  • Improved binary star setup with ability to set up arbitrary number of stars (#780, #757)
  • TDE setup now supports white dwarfs with fake GR (thanks to Cristiano Longarini; #634)
  • GR initial conditions for placing stars on zero energy orbits in TDE setup (thanks to Mario Aguilar and Megha Sharma; #624)
  • Option to remove particles with large H/R (#641)
  • Improvements to star setup and relaxation (thanks to Mike Lau, S. Neilson; #631, #758, #762)
  • Setup of solar system bodies (SETUP=solarsystem) improved and extended (#622, #623, #629)
  • Can now set up planets with eccentric and inclined orbits (thanks to Bridget McFarlane; #653)
  • Setup for radiation pulse test problem added (#642)
  • Large cleanup of code in setup modules (#685, #698)
  • Bug fix in stellar relaxation with sink particle core (#758)

Analysis/moddump utilities

  • Libphantom-amuse interface for coupling Phantom with AMUSE (thanks to Steven Rieder; #513, #702)
  • New utility to add flyby from orbital elements (thanks to E. Castro-Martinez; #676)
  • Infall moddump and streamer model added (Calcino et al. 2025; #785)
  • Significant updates to common envelope analysis (Lau et al. 2025; #617, #643, #693, #694, #704, #729, #743, #750)
  • New moddump for collision between a star and a disc section (Jankovič et al. 2026; #801)
  • New get_density_global routine (#783)
  • APR support in MCFOST (#765)
  • Command line flag --nchild added to splitpart/mergepart utilities (#680)
  • phantom2hdf5 rewritten as a pure conversion utility, now supported and tested (#660, #720)

Bug fixes/Optimizations

  • Better caching in tree walk, approx 10-15% speedup (#778)
  • Optimisation of accretion routines when there are many sink particles (thanks to Yann Bernard; #710, #747)
  • Fix for NaNs during grain growth with fragmentation (#690)
  • Fix for segfault caused by shuffling of particle types (#637)
  • Phantom+mcfost live calculations no longer seg fault when running with more than 16 cores (#688)
  • Fix for potential division by zero in ptmass_heating (thanks to Chunliang Mu; #678)
  • Threadprivate array allocation fixed for OpenMP (thanks to Adam Koval; #708)
  • Fix for NaN with subgroup and sinktree (#707)
  • Fix for abortrun initialisation (#742)
  • Fix for wind radiation parameter card (thanks to Mats Esseldeurs; #753)
  • Fix for custom dust distributions and ilimitdustflux flag (#795)
  • Fix for OpenMP reduction issue (#633)
  • Fix for HI cooling (#638)
  • Number of .ev files can now exceed 99 (thanks to Fitz Hu; #662)
  • Bugs fixed with relaxation of stars in GR (#613)

Other

  • Can now specify dumpfile name on command line to override .in file setting (#781)
  • Major cleanup of initial and evolve modules to improve code structure (#718)
  • Input file parsing overhauled to use read_inopt routines, consistent with .setup files (#706, #728, #734)
  • Major refactor of the subgroup module (thanks to Yann Bernard; #739)
  • Can play 2048 when you get bored by creating an egg.txt file in run dir (thanks to Cheryl Lau; #682)
  • Added support for ifx and aocc compilers in build system (thanks to Mike Lau, Yann Bernard; #658, #532, #695, #724, #802)
  • Reduced number of #ifdefs in the code (#691, #714, #715)
  • Authorship guidelines added (thanks to Rebecca Nealon; #692)
  • Improved documentation on conservation checks (thanks to Jacksen Narvaez; #665)
  • Improved developer documentation (thanks to Camille Landri; #705)
  • CI on pull requests cancels previous job if more commits added (thanks to Timothée David--Cléris; #717)
  • Enforce no compiler warnings with all compilers in github actions workflow (#681, #695)
  • Added build checks for all moddump, analysis and kernel modules (#769)

New Contributors

Full Changelog: v2025.0.0...v2026.0.0

Contributors

rieder, tdavidcl, and 11 other contributors
Assets 3
Loading