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Cold equation of state in a strong magnetic field - Effects of inverse beta-decay
Abstract
The influence of a high magnetic field (B is greater than 10 exp 12 G) on the degenerate matter equation of state appropriate to a neutron star is studied. The regime dominated by relativistic electrons up to the neutron drip density is highlighted. The equilibrium matter composition and equation of state, allowing for inverse beta-decay. Two different equilibrium models are determined: an ideal neutron-proton-electron (npe) gas and the more realistic model of Baym, Pethick, and Sutherland (1971) consisting of a Coulomb lattice of heavy nuclei embedded in an electron gas. For a sufficiently high field strength, the magnetic field has an appreciable effect, changing the adiabatic index of the matter and the nuclear transition densities. The influence of a strong field on some simple nonequilibrium processes, including beta-decay and inverse beta-decay (electron capture) is also considered. The effects produced by the magnetic field are mainly due to the changes in the transverse electron quantum orbits and the allowed electron phase space induced by the field.
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Citations
Cited by
Physics of strongly magnetized neutron stars
Harding, A. K., & Lai, D. (2006) · Reports on Progress in Physics · doi:10.1088/0034-4885/69/9/r03 · Cited by 823
Self-citationMatter in strong magnetic fields
Lai, D. (2001) · Reviews of Modern Physics · doi:10.1103/revmodphys.73.629 · Cited by 540
Self-citationThe Equation of State of Neutron Star Matter in Strong Magnetic Fields
Broderick, A., Prakash, M., & Lattimer, J. M. (2000) · The Astrophysical Journal · doi:10.1086/309010 · Cited by 338
Equation of state of a dense and magnetized fermion system
Ferrer, E. J., de la Incera, V., Keith, J. P., Portillo, I., & Springsteen, P. L. (2010) · Physical Review C · doi:10.1103/physrevc.82.065802 · Cited by 314
Metadata
- Authors
- Lai, D., & Shapiro, S. L.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1991-12
- Volume
- 383
- Pages
- 745
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2007951420
- Cited by
- 357
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lai, D., & Shapiro, S. L. (1991). Cold equation of state in a strong magnetic field - Effects of inverse beta-decay. The Astrophysical Journal. https://doi.org/10.1086/170831
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