Harvey, J. W. and Hill, F. and Hubbard, R. P. and Kennedy, J. R. and Leibacher, J. W. and Pintar, J. A. and Gilman, P. A. and Noyes, R. W. and Title, A. M. and Toomre, J. and Ulrich, R. K. and Bhatnagar, A. and Kennewell, J. A. and Marquette, W. and Patrón, J. and Saá, O. and Yasukawa, E. (1996) The Global Oscillation Network Group (GONG) Project. Science, 272 (5266). pp. 1284-1286. ISSN 0036-8075. doi:10.1126/science.272.5266.1284. https://resolver.caltech.edu/CaltechAUTHORS:20150121-094920761
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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.
| Item Type: | Article | ||||||||||||
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| 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. | ||||||||||||
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| Issue or Number: | 5266 | ||||||||||||
| DOI: | 10.1126/science.272.5266.1284 | ||||||||||||
| Record Number: | CaltechAUTHORS:20150121-094920761 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150121-094920761 | ||||||||||||
| Official Citation: | Harvey, J. W., Hill, F., Hubbard, R. P., Kennedy, J. R., Leibacher, J. W., Pintar, J. A., . . . Yasukawa, E. (1996). The Global Oscillation Network Group (GONG) Project. Science, 272(5266), 1284-1286. doi: 10.1126/science.272.5266.1284 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 53933 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | INVALID USER | ||||||||||||
| Deposited On: | 21 Jan 2015 20:36 | ||||||||||||
| Last Modified: | 10 Nov 2021 20:25 |
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