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The decompression of cold neutron star matter
Open accessAbstract
The ejection of cold neutron-star matter is examined, and an attempt is made to determine whether the final composition of this matter may be similar to that normally associated with the hot high-neutron-flux r-process. A semiempirical liquid-drop model is used for the nucleus, and the equilibrium composition of the matter is determined by assuming it to be in its absolute ground state at a given density. Physical mechanisms operating during the expansion are analyzed, and the composition of the ejected matter is found as a function of its density during expansion. The results indicate that it is virtually impossible for deuterium to form, that neutrons can be captured only after beta decay increases the atomic numbers of nuclei, and that no free neutrons can escape. It is concluded that neutron-star ejecta can produce heavy neutron-rich nuclei and may produce somewhat heavier nuclei than a standard r-process.
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Cited by
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Eichler, D., Livio, M., Piran, T., & Schramm, D. N. (1989) · Nature · doi:10.1038/340126a0 · Cited by 2,107
Self-citationNeutron-Capture Elements in the Early Galaxy
Sneden, C., Cowan, J. J., & Gallino, R. (2008) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.46.060407.145207 · Cited by 968
Bauswein, A., Goriely, S., & Janka, H.-T. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/773/1/78 · Cited by 567
AN r -PROCESS KILONOVA ASSOCIATED WITH THE SHORT-HARD GRB 130603B
Berger, E., Fong, W., & Chornock, R. (2013) · The Astrophysical Journal · doi:10.1088/2041-8205/774/2/l23 · Cited by 486
Identification of strontium in the merger of two neutron stars
Watson, D., Hansen, C. J., Selsing, J., Koch, A., Malesani, D. B., Andersen, A. C., Fynbo, J. P. U., Arcones, A., Bauswein, A., Covino, S., et al. (2019) · Nature · doi:10.1038/s41586-019-1676-3 · Cited by 482
Metadata
- Authors
- Lattimer, J. M., Mackie, F., Ravenhall, D. G., & Schramm, D. N.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1977-04
- Volume
- 213
- Pages
- 225
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1986183096
- Cited by
- 217
- References
- 0
- FWCI
- 1.72
- Type
- journal article
- Language
- en
- Open access
- green
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- Lattimer, J. M., Mackie, F., Ravenhall, D. G., & Schramm, D. N. (1977). The decompression of cold neutron star matter. The Astrophysical Journal. https://doi.org/10.1086/155148
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
