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The Ground State of Matter at High Densities: Equation of State and Stellar Models
Abstract
The equation of state of zero-temperature matter in complete nuclear equilibrium is given for mass densities below 5 X 1014 g . We redetermine, taking into account the effect of the Coulomb lattice and using more recent nuclear mass extrapolations, the sequence of equilibrium nuclides present at mass densities betv en 10' and 4.3 X 1011 g , the point of neutron drip; and calculate the equation of state here. For densities between 4.3 X 1011 and 5 X 1014 g the equation of state is taken from the calculations of Baym, Bethe, and Pethick; included is an extension of the equation of state to still higher densities, taken from the calculations of Pandharipande, which include the effects of hyperons. We calculate zero-temperature white-dwarf and neutron-star models for the equation of state. The maximum stable white-dwarf mass, the Chandrasekhar limit, is 1.00 io. The lightest stable neutron star has a mass 0.0925 M0 and a central density 1.55 X 1014 g cm-3 neutron stars between 0.0925 and 0.11 M0 are entirely solid. Moments of inertia, surface deformations, and mass quadrupole moments are calculated for slowly rotating neutron stars.
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Citations
Cited by
Hot and cold, nuclear and neutron matter
Friedman, B., & Pandharipande, V. R. (1981) · Nuclear Physics A · doi:10.1016/0375-9474(81)90649-7 · Cited by 916
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
Hybrid Stars that Masquerade as Neutron Stars
Alford, M., Braby, M., Paris, M., & Reddy, S. (2005) · The Astrophysical Journal · doi:10.1086/430902 · Cited by 721
Matter in strong magnetic fields
Lai, D. (2001) · Reviews of Modern Physics · doi:10.1103/revmodphys.73.629 · Cited by 540
A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437–4715
Choudhury, D., Salmi, T., Vinciguerra, S., Riley, T. E., Kini, Y., Watts, A. L., Dorsman, B., Bogdanov, S., Guillot, S., Ray, P. S., et al. (2024) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ad5a6f · Cited by 291
Metadata
- Authors
- Baym, G., Pethick, C., & Sutherland, P.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1971-12
- Volume
- 170
- Pages
- 299
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2076752847
- Cited by
- 1,735
- References
- 0
- FWCI
- 22.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Baym, G., Pethick, C., & Sutherland, P. (1971). The Ground State of Matter at High Densities: Equation of State and Stellar Models. The Astrophysical Journal. https://doi.org/10.1086/151216
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