Zobrazeno 1 - 10
of 6 421
pro vyhledávání: '"Hirschi, A."'
Autor:
Griffiths, Adam, Aloy, Miguel-Á, Hirschi, Raphael, Reichert, Moritz, Obergaulinger, Matrin, Whitehead, Emily E., Martinet, Sébastien, Esktröm, Sylvia, Meynet, Georges
Stars with initial mass above roughly 8 solar masses will evolve to form a core made of iron group elements at which point no further exothermic nuclear reactions between charged nuclei may prevent the core collapse. Electron captures, neutrino losse
Externí odkaz:
http://arxiv.org/abs/2408.03368
Autor:
Rizzuti, Federico, Hirschi, Raphael, Varma, Vishnu, Arnett, William David, Georgy, Cyril, Meakin, Casey, Mocák, Miroslav, Murphy, Alexander St. John, Rauscher, Thomas
One-dimensional (1D) stellar evolution models are widely used across various astrophysical fields, however they are still dominated by important uncertainties that deeply affect their predictive power. Among those, the merging of independent convecti
Externí odkaz:
http://arxiv.org/abs/2407.15544
Strong metallicity-dependent winds dominate the evolution of core He-burning, classical Wolf-Rayet (cWR) stars, which eject both H and He-fusion products such as 14N, 12C, 16O, 19F, 22Ne and 23Na during their evolution. The chemical enrichment from c
Externí odkaz:
http://arxiv.org/abs/2407.07983
Autor:
Sibony, Yves, Shepherd, Kendall G., Yusof, Norhasliza, Hirschi, Raphael, Chambers, Caitlan, Tsiatsiou, Sophie, Nandal, Devesh, Sciarini, Luca, Moyano, Facundo D., Bétrisey, Jérôme, Buldgen, Gaël, Georgy, Cyril, Ekström, Sylvia, Eggenberger, Patrick, Meynet, Georges
Grids of stellar evolution models with rotation using the Geneva stellar evolution code (Genec) have been published for a wide range of metallicities. We introduce the last remaining grid of Genec models, with a metallicity of $Z=10^{-5}$. We study t
Externí odkaz:
http://arxiv.org/abs/2407.06739
Autor:
Georgy, C., Rizzuti, F., Hirschi, R., Varma, V., Arnett, W. D., Meakin, C., Mocak, M., Murphy, A. StJ., Rauscher, T.
The treatment of convection remains a major weakness in the modelling of stellar evolution with one-dimensional (1D) codes. The ever increasing computing power makes now possible to simulate in 3D part of a star for a fraction of its life, allowing u
Externí odkaz:
http://arxiv.org/abs/2405.21033
Autor:
Tsiatsiou, Sophie, Sibony, Yves, Nandal, Devesh, Sciarini, Luca, Hirai, Yutaka, Ekstrom, Sylvia, Farrell, Eoin, Murphy, Laura, Choplin, Arthur, Hirschi, Raphael, Chiappini, Cristina, Liu, Boyuan, Bromm, Volker, Groh, Jose, Meynet, Georges
Publikováno v:
A&A 687, A307 (2024)
The first stars might have been fast rotators. This would have important consequences for their radiative, mechanical and chemical feedback. We discuss the impact of fast initial rotation on the evolution of massive Population III models and on their
Externí odkaz:
http://arxiv.org/abs/2404.16512
Publikováno v:
Phys.Lett.B 851 (2024) 138555
The recent experimental observation of Light-by-Light (LbL) scattering at the Large Hadron Collider has revived interest in this fundamental process, and especially of the accurate prediction of its cross-section, which we present here for the first
Externí odkaz:
http://arxiv.org/abs/2312.16956
Autor:
Hirschi, Amanda
Using the global Kuranishi charts constructed in \cite{HS22}, we define gravitational descendants and equivariant Gromov-Witten invariants for general symplectic manifolds. We prove that that these invariants, equivariant and non-equivariant, satisfy
Externí odkaz:
http://arxiv.org/abs/2312.03625
Autor:
Hirschi, Amanda, Wang, Luya
We prove that the examples by Smith and McMullen-Taubes provide infinitely many counterexamples to one direction of Donaldson's 4-6 question and the closely related Stabilising Conjecture. These are the first known counterexamples. In the other direc
Externí odkaz:
http://arxiv.org/abs/2309.07041
Autor:
M. Wood, I. D. Haigh, Q. Q. Le, H. N. Nguyen, H. B. Tran, S. E. Darby, R. Marsh, N. Skliris, J. J.-M. Hirschi
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 24, Pp 3627-3649 (2024)
Floods are consistently identified as the most serious global natural hazard, causing devastating loss of life and economic damage that runs into multiple billions of US dollars each year. At the coastline, many flood disasters are in fact compound f
Externí odkaz:
https://doaj.org/article/8b695cddd1814de590fde4b3f24cb04d
