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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents



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ID: 288719.0, MPI für Gravitationsphysik / Astrophysical Relativity
3D Collapse of Rotating Stellar Iron Cores in General Relativity Including Deleptonization and a Nuclear Equation of State
Authors:Ott, Christian D.; Dimmelmeier, Harald; Marek, Andreas; Janka, Hans-Thomas; Hawke, Ian; Zink, B.; Schnetter, Erik
Date of Publication (YYYY-MM-DD):2007-06-29
Title of Journal:Physical Review Letters
Volume:98
Issue / Number:26
Sequence Number of Article:261101
Review Status:not specified
Audience:Not Specified
Abstract / Description:We present 2D and 3D simulations of the collapse of rotating stellar iron cores in general relativity employing a nuclear equation of state and an approximate treatment of deleptonization. We compare fully general relativistic and conformally flat evolutions and find that the latter treatment is sufficiently accurate for the core-collapse supernova problem. We focus on gravitational wave (GW) emission from rotating collapse, bounce, and early postbounce phases. Our results indicate that the GW signature of these phases is much more generic than previously estimated. We also track the growth of a nonaxisymmetric instability in one model, leading to strong narrow-band GW emission.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:DOI:10.1103/PhysRevLett.98.261101
URL:http://link.aps.org/doi/10.1103/PhysRevLett.98.261...
ISSN:0031-9007
LOCALID:arXiv:astro-ph/0609819v2
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