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Title:
Radiating scalar soliton-like stars in a pressurized environment
Authors:
Esculpi, M.; Herrera, L.
Affiliation:
AA(Univ. Central de Venezuela, Caracas, Venezuela), AB(Univ. Central de Venezuela, Caracas, Venezuela)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 437, no. 1, p. 317-331 (ApJ Homepage)
Publication Date:
12/1994
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Nonadiabatic Conditions, Radiation Transport, Relativity, Shock Wave Interaction, Stellar Evolution, Stellar Interiors, Stellar Models, Stellar Radiation, Mathematical Models, Rankine-Hugoniot Relation, Solitary Waves
DOI:
10.1086/174998
Bibliographic Code:
1994ApJ...437..317E

Abstract

We study the nonadiabatic evolution of scalar soliton stars embedded in a pressurized environment. The spacetime within the star is assumed to be self-similar, and radiation transport is modeled through a combination of diffusion and streaming out. Generalized Rankine-Hugoniot conditions for impulsive shocks are used to match the soliton to the surrounding mantle. Attention is focused on the influence of different variables on the survival capacity of the soliton all along the evolution of the system. The conspicuous role played by the thin shell, at the boundary of the soliton, in the ejection of the outer mantle, is brought out.

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