Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Gonzalez, Matthias"'
Autor:
Tremblin, Pascal, Bourgeois, Rémi, Bulteau, Solène, Kokh, Samuel, Padioleau, Thomas, Delorme, Maxime, Strugarek, Antoine, González, Matthias, Brun, Allan Sacha
We present a new multi-dimensional, robust, and cell-centered finite-volume scheme for the ideal MHD equations. This scheme relies on relaxation and splitting techniques and can be easily used at high order. A fully conservative version is not entrop
Externí odkaz:
http://arxiv.org/abs/2409.14992
Publikováno v:
A&A 687, A90 (2024)
The birth process of circumstellar disks remains poorly constrained due to observational and numerical challenges. Recent numerical works have shown that the small-scale physics, often wrapped into a sub-grid model, play a crucial role in disk format
Externí odkaz:
http://arxiv.org/abs/2404.14496
Autor:
Tung, Ngo-Duy, Testi, Leonardo, Lebreuilly, Ugo, Hennebelle, Patrick, Maury, Anaëlle, Klessen, Ralf S., Cacciapuoti, Luca, González, Matthias, Rosotti, Giovanni, Molinari, Sergio
Protoplanetary disks, which are the natural consequence of the gravitational collapse of the dense molecular cloud cores, host the formation of the known planetary systems in our universe. Substantial efforts have been dedicated to investigating the
Externí odkaz:
http://arxiv.org/abs/2401.12142
Publikováno v:
A&A 680, A23 (2023)
Understanding the collapse of dense molecular cloud cores to stellar densities and the subsequent evolution of the protostar is of importance to model the feedback effects such an object has on its surrounding environment, as well as describing the c
Externí odkaz:
http://arxiv.org/abs/2310.01516
Publikováno v:
A&A 672, A88 (2023)
(Abridged) Most massive stars are located in multiple systems. The modeling of disk fragmentation, a possible mechanism leading to stellar multiplicity, relies on parallel 3D simulation codes whose agreement remains to be evaluated. Using the Cartesi
Externí odkaz:
http://arxiv.org/abs/2302.03486
We present a geometric multigrid solver for the M1 model of radiative transfer without source terms. In radiative hydrodynamics applications, the radiative transfer needs to be solved implicitly because of the fast propagation speed of photons relati
Externí odkaz:
http://arxiv.org/abs/2208.14703
Autor:
Commerçon, Benoît, González, Matthias, Mignon-Risse, Raphaël, Hennebelle, Patrick, Vaytet, Neil
Publikováno v:
A&A 658, A52 (2022)
We study mass accretion and ejection in the vicinity of massive star forming cores using high-resolution (5 au) 3D AMR numerical simulations. We investigate the mechanisms at the origin of outflows and characterise the properties of the disc forming
Externí odkaz:
http://arxiv.org/abs/2109.10580
Autor:
Colombo, Salvatore, Ibgui, Laurent, Orlando, Salvatore, Rodriguez, Rafael, Espinosa, Guadalupe, González, Matthias, Stehlé, Chantal, de Sá, Lionel, Argiroffi, Costanza, Bonito, Rosaria, Peres, Giovanni
Publikováno v:
A&A 629, L9 (2019)
Models and observations indicate that the impact of matter accreting onto the surface of young stars produces regions at the base of accretion columns, in which optically thin and thick plasma components coexist. Thus an accurate description of these
Externí odkaz:
http://arxiv.org/abs/1908.06799
Autor:
Colombo, Salvatore, Ibgui, Laurent, Orlando, Salvatore, Rodriguez, Raphael, Espinosa, Guadalupe, González, Matthias, Stehlé, Chantal, Peres, Giovanni
Modeling the dynamics of most astrophysical structures requires an adequate description of the radiation-matter interaction. Several numerical (magneto)hydrodynamics codes were upgraded with a radiation module to fulfill this request. However, those
Externí odkaz:
http://arxiv.org/abs/1907.04591
Publikováno v:
A&A 615, A5 (2018)
The transport of angular momentum is capital during the formation of low-mass stars; too little removal and rotation ensures stellar densities are never reached, too much and the absence of rotation means no protoplanetary disks can form. Magnetic di
Externí odkaz:
http://arxiv.org/abs/1801.08193