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Resonant Shattering of Neutron Star Crusts

Tsang, David and Read, Jocelyn S. and Hinderer, Tanja and Piro, Anthony L. and Bondarescu, Ruxandra (2012) Resonant Shattering of Neutron Star Crusts. Physical Review Letters, 108 (1). 011102. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20120206-102145924

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Abstract

The resonant excitation of neutron star (NS) modes by tides is investigated as a source of short gamma-ray burst (SGRB) precursors. We find that the driving of a crust-core interface mode can lead to shattering of the NS crust, liberating ∼10^(46)–10^(47)  erg of energy seconds before the merger of a NS-NS or NS-black-hole binary. Such properties are consistent with Swift/BAT detections of SGRB precursors, and we use the timing of the observed precursors to place weak constraints on the crust equation of state. We describe how a larger sample of precursor detections could be used alongside coincident gravitational wave detections of the inspiral by Advanced LIGO class detectors to probe the NS structure. These two types of observations nicely complement one another, since the former constrains the equation of state and structure near the crust-core boundary, while the latter is more sensitive to the core equation of state.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.108.011102DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.108.011102PublisherUNSPECIFIED
Additional Information:© 2012 American Physical Society. Received 29 September 2011; published 5 January 2012. D. T., T. H., and A. L. P. were supported by the Sherman Fairchild Foundation at Caltech; J. S. R. by NSF Grants No. PHY-0900735 and No. PHY-1055103; A. L. P. by NASA ATP Grant No. NNX07AH06G and NSF Grant No. AST-0855535; and R. B. by NSF Grants No. PHY 06-53462 and No. PHY 09-69857, and NASA Grant No. NNG05GF71G. We thank A. Steiner for providing EOS and compositional tables and useful advice. We also thank D. Lai, C. Hirata, B. Metzger, C. Ott, E. Flanagan, C. Cutler, C. Horowitz, S. Phinney, B. Giacomazzo, P. Goldreich, A. Lundgren, N. Andersson, C. Gundlach, and the organizers of the MICRA workshop for valuable discussion.
Group:TAPIR
Funders:
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
NSFPHY-0900735
NSFPHY-1055103
NASA ATPNNX07AH06G
NSFAST-0855535
NSFPHY 06-53462
NSFPHY 09-69857
NASANNG05GF71G
Classification Code:PACS: 97.60.Jd, 95.85.Sz, 97.80.-d, 98.70.Rz
Record Number:CaltechAUTHORS:20120206-102145924
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120206-102145924
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29147
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:06 Feb 2012 21:07
Last Modified:26 Dec 2012 14:47

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