Zobrazeno 1 - 10
of 329
pro vyhledávání: '"Brünn, S."'
Autor:
Pospiech Anton
Autor:
Yakunin, K. N., Endeve, E., Mezzacappa, A., Szczpanczyk, M., Zanolin, M., Marronetti, P., Lentz, E. J., Bruenn, S. W., Hix, W. R., Messer, O. E. B., Blondin, J. M., Harris, J. A.
In this work we report briefly on the gravitational wave (GW) signal computed in the context of a self-consistent, 3D simulation of a core-collapse supernova (CCSN) explosion of a 15M$_\odot$ progenitor star. We present a short overview of the GW sig
Externí odkaz:
http://arxiv.org/abs/1710.08372
Autor:
Hix, W. R., Lentz, E. J., Bruenn, S. W., Mezzacappa, A., Messer, O. E. B., Endeve, E., Blondin, J. M., Harris, J. A., Marronett, P., Yakunin, K. N.
Publikováno v:
Acta Physica Polonica B Vol. 47 No. 3 Pg 645 (2016)
Core-collapse supernovae, the culmination of massive stellar evolution, are spectacular astronomical events and the principle actors in the story of our elemental origins. Our understanding of these events, while still incomplete, centers around a ne
Externí odkaz:
http://arxiv.org/abs/1602.05553
Autor:
Bruenn, S. W., Mezzacappa, A., Hix, W. R., Blondin, J. M., Marronetti, P., Messer, O. E. B., Dirk, C. J., Yoshida, S.
Publikováno v:
PROBING STELLAR POPULATIONS OUT TO THE DISTANT UNIVERSE: CEFALU 2008, Proceedings of the International Conference. AIP Conference Proceedings, Volume 1111, pp. 593-601 (2009)
Unraveling the mechanism for core-collapse supernova explosions is an outstanding computational challenge and the problem remains essentially unsolved despite more than four decades of effort. However, much progress in realistic modeling has occurred
Externí odkaz:
http://arxiv.org/abs/1002.4909
Autor:
Bruenn, S. W., Mezzacappa, A., Hix, W. R., Blondin, J. M., Marronetti, P., Messer, O. E. B., Dirk, C. J., Yoshida, S.
Publikováno v:
SciDAC 2009 Scientific Discovery through Advanced Computing, 14-18 June, San Diego, California, USA. AIP Conference Proceedings, Volume 180 (2009) 012018, pp. 1-5
Much progress in realistic modeling of core-collapse supernovae has occurred recently through the availability of multi-teraflop machines and the increasing sophistication of supernova codes. These improvements are enabling simulations with enough re
Externí odkaz:
http://arxiv.org/abs/1002.4914
Publikováno v:
AIP Conf.Proc.924:234-242,2007
Here we present the results from two sets of simulations, in two and three spatial dimensions. In two dimensions, the simulations include multifrequency flux-limited diffusion neutrino transport in the "ray-by-ray-plus" approximation, two-dimensional
Externí odkaz:
http://arxiv.org/abs/0709.1484
Autor:
Bruenn, S. W., Dirk, C. J., Mezzacappa, A., Hayes, J. C., Blondin, J. M., Hix, W. R., Messer, O. E. B.
Publikováno v:
J.Phys.Conf.Ser.46:393-402,2006
The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence from simulations that the explosion is marginal presents great computa
Externí odkaz:
http://arxiv.org/abs/0709.0537
We have developed a formalism for analyzing the stability of a fluid in the presence of neutrinos of all flavors and in the presence of a gravitational field. When applied to an extensive two-dimensional grid of core radii and fluid element sizes for
Externí odkaz:
http://arxiv.org/abs/astro-ph/0404099
Publikováno v:
J.Phys.G29:2523-2542,2003
New facilities to measure neutrino-nucleus cross sections, such as those possible in conjunction with spallation neutron sources, could provide an experimental foundation for the many neutrino-nucleus weak interaction rates needed in supernova models
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310763
Autor:
Liebendoerfer, M., Messer, O. E. B., Mezzacappa, A., Bruenn, S. W., Cardall, C. Y., Thielemann, F. -K.
Publikováno v:
Astrophys.J.Suppl.150:263-316,2004
We present an implicit finite difference representation for general relativistic radiation hydrodynamics in spherical symmetry. Our code, Agile-Boltztran, solves the Boltzmann transport equation for the angular and spectral neutrino distribution func
Externí odkaz:
http://arxiv.org/abs/astro-ph/0207036