skip to main content

Title: Bounds on dark matter in solar orbit

The possibility is considered that a spherical distribution of dark matter (DM), matter not visible with current instruments, is trapped in the sun's gravitational field. Bounds are placed from the motion of Uranus and Neptune, on the amount of DM that could be so trapped within the radius of those planets' orbits, as follows: from the Voyager 2, Uranus-flyby data new, more accurate ephemeris values are generated. Trapped DM mass is bounded by noting that such a distribution would increase the effective mass of the sun as seen by the outer planets and by using the new ephemeris values to bound such an increase. 34 refs.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. (California Institute of Technology, Pasadena (USA)
  2. (USA)
  3. (USA))
Publication Date:
OSTI Identifier:
5398250
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; (USA); Journal Volume: 342
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SOLAR SYSTEM; NONLUMINOUS MATTER; GRAVITATIONAL FIELDS; NEPTUNE PLANET; ORBITS; SPATIAL DISTRIBUTION; URANUS PLANET; VOYAGER SPACE PROBES; DISTRIBUTION; PLANETS; SPACE VEHICLES; VEHICLES 640104* -- Astrophysics & Cosmology-- Solar Phenomena