16 citations · 18 across the 11 of their papers we have counts for
6 papers · 1 filter
Developing a Non-Newtonian Fluid Model for Dust, for Application to Astrophysical Flows
Elliot M. Lynch, Guillaume Laibe
In the astrophysics community it is common practice to model collisionless dust, entrained in a gas flow, as a pressureless fluid. However a pressureless fluid is fundamentally dif…
Wave topology of stellar inertial oscillations
Armand Leclerc, Guillaume Laibe, Nicolas Perez
Inertial waves in convective regions of stars exhibit topological properties linked to a Chern number of 1. The first of these is a unique, unidirectional, prograde oscillation mod…
Local Spherical Collapsing Box in Athena++: Numerical Implementation and Benchmark Tests
Ziyan Xu, Elliot M. Lynch, Guillaume Laibe
We implement a local model for a spherical collapsing/expanding gas cloud into the Athena++ magnetohydrodynamic code. This local model consists of a Cartesian periodic box with tim…
PT and anti-PT symmetries for astrophysical waves
Armand Leclerc, Guillaume Laibe, Nicolas Perez
Context: Discrete symmetries have found numerous applications in photonics and quantum mechanics, but remain little studied in fluid mechanics, particularly in astrophysics. Aims:…
Mixing is easy: New insights for cosmochemical evolution from pre-stellar core collapse
Asmita Bhandare, Benoît Commerçon, Guillaume Laibe +5
Signposts of early planet formation are ubiquitous in substructured young discs. Dense, hot and high-pressure regions formed during gravitational collapse process, integral to star…
Topology of shallow-water waves on the rotating sphere
Nicolas Perez, Armand Leclerc, Guillaume Laibe +1
Topological properties of the spectrum of shallow-water waves on a rotating spherical body are established. Particular attention is paid to its spectral flow, i.e. the modes whose…