Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Vijayan, Vimal"'
Autor:
Sneppen, Albert, Just, Oliver, Bauswein, Andreas, Damgaard, Rasmus, Watson, Darach, Shingles, Luke J., Collins, Christine E., Sim, Stuart A., Xiong, Zewei, Martinez-Pinedo, Gabriel, Soultanis, Theodoros, Vijayan, Vimal
The time until black hole formation in a binary neutron-star (NS) merger contains invaluable information about the nuclear equation of state (EoS) but has thus far been difficult to measure. We propose a new way to constrain the merger remnant's NS l
Externí odkaz:
http://arxiv.org/abs/2411.03427
Autor:
Collins, Christine E., Shingles, Luke J., Bauswein, Andreas, Sim, Stuart A., Soultanis, Theodoros, Vijayan, Vimal, Floers, Andreas, Just, Oliver, Leck, Gerrit, Lioutas, Georgios, Martínez-Pinedo, Gabriel, Sneppen, Albert, Watson, Darach, Xiong, Zewei
Recent analysis of the kilonova, AT2017gfo, has indicated that this event was highly spherical. This may challenge hydrodynamics simulations of binary neutron star mergers, which usually predict a range of asymmetries, and radiative transfer simulati
Externí odkaz:
http://arxiv.org/abs/2309.05579
Autor:
Shingles, Luke J., Collins, Christine E., Vijayan, Vimal, Flörs, Andreas, Just, Oliver, Leck, Gerrit, Xiong, Zewei, Bauswein, Andreas, Martínez-Pinedo, Gabriel, Sim, Stuart A.
Publikováno v:
2023, ApJL, 954, L41
We present three-dimensional radiative transfer calculations for the ejecta from a neutron star merger that include line-by-line opacities for tens of millions of bound-bound transitions, composition from an r-process nuclear network, and time-depend
Externí odkaz:
http://arxiv.org/abs/2306.17612
Autor:
Vijayan, Vimal, Rahman, Ninoy, Bauswein, Andreas, Martínez-Pinedo, Gabriel, Arbina, Ignacio L.
We study the impact of pions in simulations of neutron star mergers and explore the impact on gravitational-wave observables. We model charged and neutral pions as a non-interacting Boson gas with a chosen, constant effective mass. We add the contrib
Externí odkaz:
http://arxiv.org/abs/2302.12055
Autor:
Just, Oliver, Vijayan, Vimal, Xiong, Zewei, Goriely, Stephane, Soultanis, Theodoros, Bauswein, Andreas, Guilet, Jérôme, Janka, Hans-Thomas, Martínez-Pinedo, Gabriel
We investigate the nucleosynthesis and kilonova properties of binary neutron-star (NS) merger models which lead to intermediate remnant lifetimes of ~0.1-1seconds until black-hole (BH) formation and describe all components of material ejected during
Externí odkaz:
http://arxiv.org/abs/2302.10928
Autor:
Collins, Christine E., Bauswein, Andreas, Sim, Stuart A., Vijayan, Vimal, Martínez-Pinedo, Gabriel, Just, Oliver, Shingles, Luke J., Kromer, Markus
The detection of GW170817 and the accompanying electromagnetic counterpart, AT2017gfo, have provided an important set of observational constraints for theoretical models of neutron star mergers, nucleosynthesis, and radiative transfer for kilonovae.
Externí odkaz:
http://arxiv.org/abs/2209.05246
Autor:
Bauswein, Andreas, Blacker, Sebastian, Lioutas, Georgios, Soultanis, Theodoros, Vijayan, Vimal, Stergioulas, Nikolaos
Publikováno v:
Phys. Rev. D 103, 123004 (2021)
This study addresses the collapse behavior of neutron star (NS) mergers expressed through the binary threshold mass M_thr for prompt black hole (BH) formation, which we determine by relativistic hydrodynamical simulations for 40 equation of state (Eo
Externí odkaz:
http://arxiv.org/abs/2010.04461
Autor:
Bauswein, Andreas, Blacker, Sebastian, Vijayan, Vimal, Stergioulas, Nikolaos, Chatziioannou, Katerina, Clark, James A., Bastian, Niels-Uwe F., Blaschke, David B., Cierniak, Mateusz, Fischer, Tobias
Publikováno v:
Phys. Rev. Lett. 125, 141103 (2020)
Using hydrodynamical simulations for a large set of high-density matter equations of state (EoSs) we systematically determine the threshold mass M_thres for prompt black-hole formation in equal-mass and asymmetric neutron star (NS) mergers. We devise
Externí odkaz:
http://arxiv.org/abs/2004.00846
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Akademický článek
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