Zobrazeno 1 - 10
of 4 308
pro vyhledávání: '"Nordlund, P."'
Protoplanetary disks are routinely described as finite mass reservoirs left over by the gravitational collapse of the protostar, an assumption that strongly constrains both disk evolution and planet formation models. We propose a different scenario w
Externí odkaz:
http://arxiv.org/abs/2405.07334
Context. While Class II stars have already accreted most of their mass, the continued inflow of fresh material via Bondi-Hoyle accretion acts as an additional mass reservoir for their circumstellar disks. This may explain the observed accretion rates
Externí odkaz:
http://arxiv.org/abs/2405.06520
Autor:
Eitner, Philipp, Bergemann, Maria, Hoppe, Richard, Nordlund, Åke, Plez, Bertrand, Klevas, Jonas
Large-scale stellar surveys, such as SDSS-V, 4MOST, WEAVE, and PLATO, require accurate atmospheric models and synthetic spectra of stars for accurate analyses of fundamental stellar parameters and chemical abundances. The primary goal of our work is
Externí odkaz:
http://arxiv.org/abs/2405.06338
We describe the Stagger Code for simulations of magneto-hydrodynamic (MHD) systems. This is a modular code with a variety of physics modules that will let the user run simulations of deep stellar atmospheres, sunspot formation, stellar chromospheres
Externí odkaz:
http://arxiv.org/abs/2405.02483
Autor:
He, Huan, Zhao, Junlei, Byggmästar, Jesper, He, Ru, Nordlund, Kai, He, Chaohui, Djurabekova, Flyura
$\beta$ phase gallium oxide ($\beta$-$\rm Ga_2O_3$) demonstrates tremendous potential for electronics applications and offers promising prospects for integration into future space systems with the necessity of high radiation resistance. Therefore, a
Externí odkaz:
http://arxiv.org/abs/2401.14039
Autor:
Zhao, Junlei, Fernández, Javier García, Azarov, Alexander, He, Ru, Prytz, Øystein, Nordlund, Kai, Hua, Mengyuan, Djurabekova, Flyura, Kuznetsov, Andrej
Disordering of solids typically leads to amorphization, but polymorph transitions, facilitated by favorable atomic rearrangements, may temporarily help to maintain long-range periodicity in the solid state. In far-from-equilibrium situations, such as
Externí odkaz:
http://arxiv.org/abs/2401.07675
We consider dark matter velocity distributions with an anisotropic component, and analyze how the velocity structure can be probed in a solid state ionization detector with no directional detection capability using a daily modulation effect due to th
Externí odkaz:
http://arxiv.org/abs/2312.17550
Retention of hydrogen isotopes (protium, deuterium and tritium) in tungsten is one of the most severe issues in design of fusion power plants, since significant trapping of tritium may cause exceeding radioactivity safety limits in future reactors. H
Externí odkaz:
http://arxiv.org/abs/2312.09112
Over-the-Air (OtA) computation is a newly emerged concept for computing functions of data from distributed nodes by taking advantage of the wave superposition property of wireless channels. Despite its advantage in communication efficiency, OtA compu
Externí odkaz:
http://arxiv.org/abs/2312.08950
Autor:
Zachritz, Sara L., Park, Joohyung, Batyrkhanov, Ayan, Kelly, Leah, Nordlund, Dennis, Monti, Oliver
Transport properties of Weyl semimetals are intimately connected to the underlying band structure. The signature of Weyl semimetals are linear dispersing bands that touch, forming Weyl points that result in high charge carrier mobilities. The layered
Externí odkaz:
http://arxiv.org/abs/2312.04496