Zobrazeno 1 - 10
of 707
pro vyhledávání: '"Andrássy, P."'
Autor:
Pakmor, Rüdiger, Pelisoli, Ingrid, Justham, Stephen, Rajamuthukumar, Abinaya S., Röpke, Friedrich K., Schneider, Fabian R. N., de Mink, Selma E., Ohlmann, Sebastian T., Podsiadlowski, Philipp, Fraile, Javier Moran, Vetter, Marco, Andrassy, Robert
Stellar mergers are one important path to highly magnetised stars. Mergers of two low-mass white dwarfs may create up to every third hot subdwarf star. The merging process is usually assumed to dramatically amplify magnetic fields. However, so far on
Externí odkaz:
http://arxiv.org/abs/2407.02566
Performance of high-order Godunov-type methods in simulations of astrophysical low Mach number flows
Publikováno v:
A&A 686, A34 (2024)
High-order Godunov methods for gas dynamics have become a standard tool for simulating different classes of astrophysical flows. Their accuracy is mostly determined by the spatial interpolant used to reconstruct the pair of Riemann states at cell int
Externí odkaz:
http://arxiv.org/abs/2402.16706
Convection is one of the most important mixing processes in stellar interiors. Hydrodynamic mass entrainment can bring fresh fuel from neighboring stable layers into a convection zone, modifying the structure and evolution of the star. Under some con
Externí odkaz:
http://arxiv.org/abs/2309.17225
There is strong observational evidence that the convective cores of intermediate-mass and massive main sequence stars are substantially larger than those predicted by standard stellar-evolution models. However, it is unclear what physical processes c
Externí odkaz:
http://arxiv.org/abs/2307.04068
Autor:
Herwig, Falk, Woodward, Paul R., Mao, Huaqing, Thompson, William R., Denissenkov, Pavel, Lau, Josh, Blouin, Simon, Andrassy, Robert, Paul, Adam
We performed 3D hydrodynamic simulations of the inner $\approx 50\%$ radial extent of a $25\ \mathrm{M_\odot}$ star in the early phase of the main sequence and investigate core convection and internal gravity waves in the core-envelope boundary regio
Externí odkaz:
http://arxiv.org/abs/2303.05495
Autor:
Leidi, G., Birke, C., Andrassy, R., Higl, J., Edelmann, P. V. F., Wiest, G., Klingenberg, C., Röpke, F. K.
Publikováno v:
A&A 668, A143 (2022)
Fully compressible magnetohydrodynamic (MHD) simulations are a fundamental tool for investigating the role of dynamo amplification in the generation of magnetic fields in deep convective layers of stars. The flows that arise in such environments are
Externí odkaz:
http://arxiv.org/abs/2210.01641
Autor:
Gergo Bolla, Dalida Borbala Berente, Anita Andrássy, Janos Andras Zsuffa, Zoltan Hidasi, Eva Csibri, Gabor Csukly, Anita Kamondi, Mate Kiss, Andras Attila Horvath
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract Mild cognitive impairment (MCI) is a potential therapeutic window in the prevention of dementia; however, automated detection of early cognitive deterioration is an unresolved issue. The aim of our study was to compare various classification
Externí odkaz:
https://doaj.org/article/ff6ff880b3954a1eadc15e7be526634a
Autor:
Andrassy, R., Higl, J., Mao, H., Mocák, M., Vlaykov, D. G., Arnett, W. D., Baraffe, I., Campbell, S. W., Constantino, T., Edelmann, P. V. F., Goffrey, T., Guillet, T., Herwig, F., Hirschi, R., Horst, L., Leidi, G., Meakin, C., Pratt, J., Rizzuti, F., Roepke, F. K., Woodward, P.
Publikováno v:
A&A 659, A193 (2022)
Our ability to predict the structure and evolution of stars is in part limited by complex, 3D hydrodynamic processes such as convective boundary mixing. Hydrodynamic simulations help us understand the dynamics of stellar convection and convective bou
Externí odkaz:
http://arxiv.org/abs/2111.01165
Publikováno v:
A&A 653, A55 (2021)
Context. Multidimensional hydrodynamic simulations of convection in stellar interiors are numerically challenging, especially for flows at low Mach numbers. Methods. We explore the benefits of using a low-Mach hydrodynamic flux solver and demonstrate
Externí odkaz:
http://arxiv.org/abs/2107.02199
Autor:
Edelmann, P. V. F., Horst, L., Berberich, J. P., Andrassy, R., Higl, J., Leidi, G., Klingenberg, C., Roepke, F. K.
Publikováno v:
A&A 652, A53 (2021)
Accurate simulations of flows in stellar interiors are crucial to improving our understanding of stellar structure and evolution. Because the typically slow flows are merely tiny perturbations on top of a close balance between gravity and the pressur
Externí odkaz:
http://arxiv.org/abs/2102.13111