LINKS

AGN Surveys & Image Databanks

• The Radio Optical Reference Frame
  VLBI images at 2 cm, 4 cm, and 13 cm wavelengths
  
  Fey et al. 1996, ApJS, 105, 299
  Fey & Charlot, 1997, ApJS, 111, 95
  Fey & Charlot, 2000, ApJS, 128, 17
  

• The Pearson & Readhead and the Caltech-Jodrell Bank Surveys
  VLBI images at 6 cm and 18 cm along with 6 cm B-configuration VLA maps
  
  Pearson & Readhead 1988, ApJ, 328, 114
  Polatidis et al. 1995, ApJS 98, 1
  Thakkar et al. 1995, ApJS, 98, 33
  Xu et al. 1995, ApJS, 99, 297
  Taylor et al. 1994, ApJS, 95, 345
  Henstock et al. 1995, ApJS, 100, 1
  

• The VLBA Calibrator Survey
  VLBA images at 3.6 cm and 13 cm wavelengths

• The VSOP Pre-Launch Survey
  VLBA images at 6 cm wavelength
  
  Fomalont et al. ApJS, 131, 95
  

• The University of Michigan Radio Astronomy Observatory Database
  Evolution of total and polarized flux density of AGN at 6 cm, 3.6 cm, and 2 cm wavelengths, measured with the 25 m radio telescope at Peach Mountain

Other resources

• SIMBAD Astronomical Database
  (Set of Identifications, Measurements, and Bibliography for Astronomical Data: SIMBAD), astronomical database with basic data, cross-identifications, observational measurements and bibliography for astronomical objects outside the solar system

• Astronomical Data Center (NASA) - Basic Data on Quasars & AGN
  Quick reference page from the NASA ADC with links to AGN surveys and general information on QSOs

• NASA/IPAC Extragalactic Database (NED)
  Interface to the NED database, built around a master list of extragalactic objects, with cross-identifications, accurate positions, redshifts, basic data, and bibliographic references

• SkyView
  The Internet's Virtual Telescope (NASA)