publication . Article . Preprint . 2017

Dispersion and decay of collective modes in neutron star cores

Dmitry Kobyakov; Sanjay Reddy; Christopher J. Pethick; Achim Schwenk;
Open Access
  • Published: 23 Aug 2017 Journal: Physical Review C, volume 96 (issn: 2469-9985, eissn: 2469-9993, Copyright policy)
  • Publisher: American Physical Society (APS)
Abstract
We calculate the frequencies of collective modes of neutrons, protons and electrons in the outer core of neutron stars. The neutrons and protons are treated in a hydrodynamic approximation and the electrons are regarded as collisionless. The coupling of the nucleons to the electrons leads to Landau damping of the collective modes and to significant dispersion of the low-lying modes. We investigate the sensitivity of the mode frequencies to the strength of entrainment between neutrons and protons, which is not well characterized. The contribution of collective modes to the thermal conductivity is evaluated.
doi: 10.1103/physrevc.96.025805
Subjects
arXiv: Nuclear Experiment
free text keywords: Proton, Neutron star, Neutron, Dispersion (optics), Nuclear theory, Outer core, Physics, Electron, Atomic physics, Nuclear physics
Related Organizations
View more
Funded by
EC| STRONGINT
Project
STRONGINT
The strong interaction at neutron-rich extremes
  • Funder: European Commission (EC)
  • Project Code: 307986
  • Funding stream: FP7 | SP2 | ERC
Download fromView all 2 versions
https://link.aps.org/accepted/...
Article
Provider: UnpayWall
arXiv.org e-Print Archive
Preprint . 2017
Provider: arXiv.org e-Print Archive
http://www.diva-portal.org/sma...
Article
Provider: Microsoft Academic Graph
https://link.aps.org/accepted/...
Article . 2017
Provider: Crossref
27 references, page 1 of 2

[1] M. Hoffberg, A. E. Glassgold, R. W. Richardson, and M. Ruderman, Phys. Rev. Lett. 24, 775 (1970).

[2] A. Schwenk and B. Friman, Phys. Rev. Lett. 92, 082501 (2004).

[3] A. Gezerlis, C. J. Pethick, and A. Schwenk, in Novel Superfluids, Volume 2, ed. K. H. Bennemann and J. B. Ketterson (Oxford University Press, Oxford, 2014) p. 580. [OpenAIRE]

[4] R. I. Epstein, Astrophys. J. 333, 880 (1988).

[5] P. Bedaque and S. Reddy, Phys. Lett. B 735, 340 (2014).

[6] D. Kobyakov, L. Samuelsson, E. Lundh, M. Marklund, V. Bychkov, and A. Brandenburg, arXiv:1504.00570v4.

[7] D. N. Aguilera, V. Cirigliano, J. A. Pons, S. Reddy, and R. Sharma, Phys. Rev. Lett. 102, 091101 (2009).

[8] L. Landau, J. Phys. U.S.S.R. 9 25 (1945).

[9] K. Hebeler, J. M. Lattimer, C. J. Pethick, and A. Schwenk, Astrophys. J. 773, 11 (2013). [OpenAIRE]

[10] G. Mendell, Astrophys. J 380, 515 (1991).

[11] D. N. Kobyakov and C. J. Pethick, Astrophys. J. 836, 203 (2017).

[12] M. Borumand, R. Joynt, and W. Kluz´niak, Phys. Rev. C 54, 2745 (1996).

[13] P. S. Shternin and D. G. Yakovlev, Phys. Rev. D 78, 063006 (2008).

[14] B. Jancovici, Nuovo Cimento 25, 428 (1962).

[15] D. Bohm and T. Staver, Phys. Rev. 84, 836 (1951).

27 references, page 1 of 2
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue