[Northern Arizona University]

Companion City

 [Georgia State University]
NStars Database NStars Forum NFinder Project ASPENS Nearby Stars Research Spitzer Space Telescope Research Astrobiology Club Dr. Koerner's Home Page
Science Objectives
Faint Dwarf Multiplicity
Imaging Surveys
Astrometric Surveys
Radial Velocity Surveys
Companion Mass Function
Extrasolar Planets Encyclopaedia
"Companionicity" References
Ideal Companions
Companion City Personnel

Until recently, very little was known about substellar companions to nearby stars. Advances in astronomical techniques have now made the critical observations possible. "Companion City" is an informal research group that seeks both to compile the results of all relevant surveys into the NStars Database and to carry out strategic surveys where data are needed. The overall aim of this program is to determine the mass/separation distribution for companions down into the planetary mass regime.

Current observational efforts include :

  • Astrometric searches (e.g., ASPENS)
  • Deep sky surveys (for wide companions)
  • HST Snapshot surveys
  • Keck survey
  • Speckle IR surveys

Tools

Valid HTML 4.01 Strict Valid CSS!