A new solar system dark matter population of weakly interacting massive particles

Thibault Damour, Lawrence Krauss

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Perturbations due to the planets combined with the non-Coulomb nature of the gravitational potential in the Sun imply that weakly interacting massive particles (WIMPs) that are gravitationally captured by scattering in surface layers of the Sun can evolve into orbits that no longer intersect the Sun. For orbits with a semimajor axis <1/2 of Jupiter's orbit, such WIMPs can persist in the solar system for >109 years, leading to a previously unanticipated population intersecting Earth's orbit. For WIMPs detectable in the next generation of detectors, this population can provide a complementary signal, in the keV range, to that of galactic halo dark matter.

Original languageEnglish (US)
Pages (from-to)5726-5729
Number of pages4
JournalPhysical Review Letters
Volume81
Issue number26
StatePublished - 1998
Externally publishedYes

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weakly interacting massive particles
solar system
dark matter
sun
orbits
Earth orbits
galactic halos
gravitational fields
planets
surface layers
perturbation
detectors
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

A new solar system dark matter population of weakly interacting massive particles. / Damour, Thibault; Krauss, Lawrence.

In: Physical Review Letters, Vol. 81, No. 26, 1998, p. 5726-5729.

Research output: Contribution to journalArticle

Damour, Thibault ; Krauss, Lawrence. / A new solar system dark matter population of weakly interacting massive particles. In: Physical Review Letters. 1998 ; Vol. 81, No. 26. pp. 5726-5729.
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