Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Balberg, Shmuel"'
Autor:
Derei, Nitay, Balberg, Shmuel, Heizler, Shay I., Steinberg, Elad, McClarren, Ryan G., Krief, Menahem
We derive a family of similarity solutions to the nonlinear non-equilibrium Marshak wave problem for an inhomogeneous planar medium which is coupled to a time dependent radiation driving source. We employ the non-equilibrium gray diffusion approximat
Externí odkaz:
http://arxiv.org/abs/2411.14891
Publikováno v:
ApJL 972 L22 (Oct 2024)
High-velocity stellar collisions near supermassive black holes may result in a complete disruption of the stars. The initial disruption can have energies on par with supernovae and power a very fast transient. In this work we examine the primary flar
Externí odkaz:
http://arxiv.org/abs/2408.16383
Autor:
Balberg, Shmuel
Publikováno v:
ApJ 962, 2, 150 (2024)
The centers of galaxies host a supermassive black hole surrounded by a dense stellar cluster. The cluster is expected to develop mass segregation, in which gravitational scatterings among the stars cause heavier objects to sink closer to the central
Externí odkaz:
http://arxiv.org/abs/2311.00497
We consider the solutions of the Guderley problem, consisting of a converging and diverging hydrodynamic shock wave in an ideal gas with a power law initial density profile. The self-similar solutions, and specifically the reflected shock coefficient
Externí odkaz:
http://arxiv.org/abs/2305.16400
Autor:
Balberg, Shmuel, Yassur, Gilad
Publikováno v:
ApJ, 952, 2, 149 (2023)
Centers of galaxies host both a supermassive black hole and a dense stellar cluster. Such an environment should lead to stellar collisions, possibly at very high velocities so that the total energy involved is of the same order as supernovae explosio
Externí odkaz:
http://arxiv.org/abs/2305.04997
We consider the solutions of the Guderley problem, consisting of an imploding strong shock wave in an ideal gas with a power law initial density profile. The self-similar solutions, and specifically the similarity exponent which determines the behavi
Externí odkaz:
http://arxiv.org/abs/2106.04971
Publikováno v:
The Astrophysical Journal, Volume 815, Issue 1, article id. 37, 20 pp. (2015)
We examine the conditions for the revival of the stalled accretion shock in core-collapse supernovae, in the context of the neutrino heating mechanism. We combine one dimensional simulations of the shock revival process with a derivation of a quasi-s
Externí odkaz:
http://arxiv.org/abs/1508.03640
Akademický článek
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Publikováno v:
2015MNRAS.447.3678B
Galaxy evolution depends strongly on the physics of the interstellar medium (ISM). Motivated by the need to incorporate the properties of the ISM in cosmological simulations we construct a simple method to include the contribution of non-thermal comp
Externí odkaz:
http://arxiv.org/abs/1311.1206
Autor:
Ginzburg, Sivan, Balberg, Shmuel
Publikováno v:
The Astrophysical Journal, 780:18, 2014 January 1
Recent observations suggest that some supernovae may be the result of an explosion into an optically thick circumstellar material, the product of pre-explosion mass-loss (wind) by the progenitor star. This scenario has been studied previously both an
Externí odkaz:
http://arxiv.org/abs/1308.6434