Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-10T21:04:36.962Z Has data issue: false hasContentIssue false
  • English
  • Français

Ground-Based Near-Infrared Observations of Global Solar Oscillations

Published online by Cambridge University Press:  03 August 2017

L. V. Didkovsky  and
V. A. Kotov
L. V. Didkovsky
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea 334413, USSR
V. A. Kotov
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea 334413, USSR Center for Space Science and Astrophysics, Stanford University, Stanford, CA 94305, U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Near-infrared (0.7-1.0 μm) observations of solar brightness oscillations were performed in 1983-1991 at the Crimean Solar Tower with the use of two (16 × 16 and 32 × 32) photodiode arrays. In 1991 new observations of p-modes were made simultaneously in two spectral ranges, near 0.7 and 1.0 μm. The data is analysed to check for the presence of solar variation with the 160-min period. It is found that the mean relative amplitude for the 160-min solar irradiance variation at 0.73 - 1.65 μm wavelengths, ~ 2 × 10–6, is much lower than the upper limits set by the ACRIM and IPHIR space experiments.

Keywords

infrared: starsSun: oscillations
Type
Part 3: Infrared Perspectives on Atmospheric Dynamics
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 277 - 282
Copyright
Copyright © Kluwer 1994 

References

Brookes, J.R., Isaak, G.R., and van der Raay, H.B.: 1976, Nature 259, 92.Google Scholar
Didkovsky, L.V., and Kotov, V.A.: 1986, Izv. Krym. Astrofiz. Obs. 74, 132.Google Scholar
Didkovsky, L.V., and Kotov, V.A.: 1987, Izv. Krym. Astrofiz. Obs. 76, 119.Google Scholar
Didkovsky, L.V., and Kotov, V.A.: 1988, Izv. Krym. Astrofiz. Obs. 80, 118.Google Scholar
Gough, D., and Toomre, J.: 1991, Ann. Rev. Astron. Astrophys. 29, 627.Google Scholar
Kotov, V.A., Haneychuk, V.I., and Tsap, T.T.: 1992, Crimean J. Astrophys., in press.Google Scholar
Kotov, V.A., Koutchmy, S., and Koutchmy, O.: 1983, Solar Phys. 82, 21.Google Scholar
Koutchmy, S., Koutchmy, O., and Kotov, V.A.: 1980, Astron. Astrophys. 90, 372.Google Scholar
Severny, A.B., Kotov, V.A., and Tsap, T.T.: 1976, Nature 259, 87.Google Scholar
Woodard, M., and Hudson, H.: 1983, Solar Phys. 82, 67.Google Scholar