Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Display Documents



  history
ID: 320081.0, MPI für Gravitationsphysik / Geometric Analysis and Gravitation
Type II critical phenomena of neutron star collapse
Authors:Noble, Scott C.; Choptuik, Matthew W.
Date of Publication (YYYY-MM-DD):2008-09-23
Title of Journal:Physical Review D
Volume:78
Issue / Number:6
Sequence Number of Article:064059
Review Status:not specified
Audience:Not Specified
Abstract / Description:We investigate spherically symmetric, general relativistic systems of collapsing perfect fluid distributions. We consider neutron star models that are driven to collapse by the addition of an initially “ingoing” velocity profile to the nominally static star solution. The neutron star models we use are Tolman-Oppenheimer-Volkoff solutions with an initially isentropic, gamma law equation of state. The initial values of (1) the amplitude of the velocity profile, and (2) the central density of the star, span a parameter space, and we focus only on that region that gives rise to type II critical behavior, wherein black holes of arbitrarily small mass can be formed. In contrast to previously published work, we find that—for a specific value of the adiabatic index (Gamma=2)—the observed type II critical solution has approximately the same scaling exponent as that calculated for an ultrarelativistic fluid of the same index. Further, we find that the critical solution computed using the ideal-gas equations of state asymptotes to the ultrarelativistic critical solution.
External Publication Status:published
Document Type:Article
Communicated by:Gerhard Huisken
Affiliations:MPI für Gravitationsphysik/Geometric Analysis and Gravitation
Identifiers:LOCALID:arXiv:0709.3527v1 [gr-qc]
URL:http://link.aps.org/doi/10.1103/PhysRevD.78.064059
ISSN:1089-4918
DOI:10.1103/PhysRevD.78.064059
Full Text:
You have privileges to view the following file(s):
0709.3527v1.pdf  [935,00 Kb] [Comment:ArXiv]  
 
PRD78-064059.pdf  [1,00 Mb] [Comment:Online Journal]  
 
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.