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Capture by the sun of a galactic population of weakly interacting, massive particles
Abstract
In this paper, hypothetical particles are assumed to make up the missing dynamical mass in the Galaxy, providing a mass density between 0.01 and 0.1 solar mass/cu pc and with a velocity dispersion of about 30 (disk) or 300 (halo) km/s. The number of particles which would be captured by the sun up to its present age by the capture mechanism of scattering off individual nucleons in the sun and into bound orbits is computed. For scattering cross sections not too far from the value of 4 x 10 to the -36th sq cm, which is optimal for suppressing solar neutrinos, it is found that just the right number can be captured. The solutions to the neutrino problem in the sun and the missing mass problem in the Galaxy may thus be one and the same.
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Citations
Cited by
Bertone, G., & Hooper, D. (2018) · Reviews of Modern Physics · doi:10.1103/revmodphys.90.045002 · Cited by 1,241
Griest, K., & Kamionkowski, M. (2000) · Physics Reports · doi:10.1016/s0370-1573(00)00021-1 · Cited by 1,076
Testing the nature of dark compact objects: a status report
Cardoso, V., & Pani, P. (2019) · Living Reviews in Relativity · doi:10.1007/s41114-019-0020-4 · Cited by 956
Solar models, neutrino experiments, and helioseismology
Bahcall, J. N., & Ulrich, R. K. (1988) · Reviews of Modern Physics · doi:10.1103/revmodphys.60.297 · Cited by 937
Detecting cold dark-matter candidates
Drukier, A. K., Freese, K., & Spergel, D. N. (1986) · Physical Review D · doi:10.1103/physrevd.33.3495 · Cited by 855
Self-citation
Metadata
- Authors
- Press, W. H., & Spergel, D. N.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1985-09
- Volume
- 296
- Pages
- 679
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2016027253
- Cited by
- 498
- References
- 0
- FWCI
- 12.43
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Capture by the sun of a galactic population of weakly interacting, massive particles. https://app.cochat.ai/papers/10.1086/163485
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- Press, W. H., & Spergel, D. N. (1985). Capture by the sun of a galactic population of weakly interacting, massive particles. The Astrophysical Journal. https://doi.org/10.1086/163485
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