Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Jérôme Novak"'
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 2, p 72 (2023)
We study the long-term thermal evolution of axisymmetric rotating neutron stars in full general relativity. To this aim, we develop NSCool 2D Rot , a major upgrade to the 1D neutron stars thermal evolution code NSCool by Page. As a first application
Externí odkaz:
https://doaj.org/article/20d277e651934cd4857f667b56271c7e
Publikováno v:
HAL
We present the derivation of hydrodynamical equations for a perfect fluid in General Relativity, within the 3 + 1 decomposition of spacetime framework, using only primitive variables. Primitive variables are opposed to conserved variables, as defined
We study the thermal evolution of axisymmetric rotating neutron stars in full general relativity. To this aim we develop "NSCool 2D Rot", a major upgrade of the 1D neutron stars thermal evolution code "NSCool" by D. Page. As a first application of ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::710120583fc8635f9b794f4863dd48f4
http://arxiv.org/abs/2206.04539
http://arxiv.org/abs/2206.04539
Fallback supernovae and the collapsar scenario for long-gamma ray burst and hypernovae have received considerable interest as pathways to black-hole formation and extreme transient events. Consistent simulations of these scenarios require a general r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7af7995a676a1bb2bc52bd27974056b6
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2021, 505 (1), pp.939-946. ⟨10.1093/mnras/stab1348⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 505 (1), pp.939-946. ⟨10.1093/mnras/stab1348⟩
Monthly Notices of the Royal Astronomical Society, 2021, 505 (1), pp.939-946. ⟨10.1093/mnras/stab1348⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 505 (1), pp.939-946. ⟨10.1093/mnras/stab1348⟩
We make extensive numerical studies of masses and radii of proto-neutron stars during the first second after their birth in core-collapse supernova events. We use a quasi-static approach for the computation of proto-neutron star structure, built on p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f9394835d5ac6022a26a53c3aaa541
http://arxiv.org/abs/2102.05923
http://arxiv.org/abs/2102.05923
Publikováno v:
Physical Review C
Physical Review C, American Physical Society, 2020, C 102, pp.035802. ⟨10.1103/PhysRevC.102.035802⟩
Physical Review C, American Physical Society, 2020, C 102, pp.035802. ⟨10.1103/PhysRevC.102.035802⟩
Neutrinos play an important role in compact star astrophysics: neutrino-heating is one of the main ingredients in core-collapse supernovae, neutrino-matter interactions determine the composition of matter in binary neutron star mergers and have among
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1c0791eb93d42b6dd020e7a0fb13c0c
http://arxiv.org/abs/2003.02152
http://arxiv.org/abs/2003.02152
Publikováno v:
Physical Review C
Physical Review C, American Physical Society, 2019, 10, pp.1103. ⟨10.1103/PhysRevC.99.055811⟩
Physical Review C, American Physical Society, 2019, 10, pp.1103. ⟨10.1103/PhysRevC.99.055811⟩
International audience; Using an axisymmetric numerical code, we perform an extensive study of the magnetic field configurations in non-rotating neutron stars, varying the mass, magnetic field strength and the equation of state. We find that the mono
Autor:
Anthea Fantina, Aurélien Pascal, Simon Giraud, Micaela Oertel, Francesca Gulminelli, Jérôme Novak, Adriana R. Raduta
Publikováno v:
Physical Review C
Physical Review C, American Physical Society, 2020, ⟨10.1103/PhysRevC.101.015803⟩
Physical Review C, 2020, ⟨10.1103/PhysRevC.101.015803⟩
Physical Review C, American Physical Society, 2020, ⟨10.1103/PhysRevC.101.015803⟩
Physical Review C, 2020, ⟨10.1103/PhysRevC.101.015803⟩
International audience; The impact of electron-capture (EC) cross sections on neutron-rich nuclei on the dynamics of core-collapse during infall and early post-bounce is studied performing spherically symmetric simulations in general relativity using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1299935dc13becbbacb7a6fafd549b69
Publikováno v:
The Fourteenth Marcel Grossmann Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories. World Scientific Publishing Co. Pte. Ltd.
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Jul 2015, Rome, Italy. pp.4125-4130, ⟨10.1142/9789813226609_0551⟩
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Jul 2015, Rome, Italy. pp.4125-4130, ⟨10.1142/9789813226609_0551⟩
International audience; We describe recent progress in the modelling of realistic equilibrium configurations of rotating superfluid neutron stars, in a fully general relativistic framework. We compute stationary and axisymmetric configurations of neu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02cd15f116aa402ddf8ed182cd9f2f1d
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/301581
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/301581
Publikováno v:
Physics of Particles and Nuclei. 46:812-815
Stellar core collapse to a black hole is an event where extremely high temperatures and densities are reached. It is then expected that additional particles to nucleons and electrons appear, as hyperons. We present numerical simulations of the collap