CaltechAUTHORS
Published May 31, 1996 | Version public
Journal Article Metadata-only

The Global Oscillation Network Group (GONG) Project

Creators

  • 1. ROR icon NOIRLab
  • 2. ROR icon National Center for Atmospheric Research
  • 3. ROR icon Smithsonian Astrophysical Observatory
  • 4. ROR icon University of Colorado Boulder
  • 5. ROR icon University of California, Los Angeles
  • 6. ROR icon Physical Research Laboratory
  • 7. ROR icon California Institute of Technology
  • 8. ROR icon Instituto de Astrofísica de Canarias

Abstract

Helioseismology requires nearly continuous observations of the oscillations of the solar surface for long periods of time in order to obtain precise measurements of the sun's normal modes of oscillation. The GONG project acquires velocity images from a network of six identical instruments distributed around the world. The GONG network began full operation in October 1995. It has achieved a duty cycle of 89 percent and reduced the magnitude of spectral artifacts by a factor of 280 in power, compared with single-site observations. The instrumental noise is less than the observed solar background.

Additional Information

© 1996 American Association for the Advancement of Science. 18 March 1996; Accepted 6 May 1996. The GONG project is managed by the National Solar Observatory, a Division of the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy under a cooperative agreement with NSF.

Additional details

Identifiers

Eprint ID
53933
Resolver ID
CaltechAUTHORS:20150121-094920761

Related works

Describes
http://www.jstor.org/stable/2889785 (URL)

Funding

National Solar Observatory
National Optical Astronomy Observatory (NOAO)
Association of Universities for Research in Astronomy (AURA)
NSF

Dates

Created
2015-01-21
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Updated
2021-11-10
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