Global solar oscillations observed in the visible to near-infrared continuum
Thesis/Dissertation
·
OSTI ID:7182959
A new technique for detecting solar oscillations in the visible to near-infrared continuum was developed and tested at the Santa Catalina Laboratory for Experimental Relativity by Astrometry (SCLERA). In 1985, measurements of the solar radiation intensity near, disk center were made by Oglesby (1986, 1987). The results of these observations were compared to the reported detections and classifications by Hill (1984, 1985) and Rabaey and Hill (1987) of the low-order, low-degree acoustic modes; the intermediate degree f-modes; and the low-order g-modes. For the low-order, low-degree, acoustic modes and the intermediate degree f-modes, a total of 40 multiplets were used in the analysis. The coincidence rates between the peaks in the power spectrum of the 1985 observations and the classified frequency spectrum for multiplets taken in subgroups of approx. = 5 (same n and contiguous in l) are typically 4-5 sigma above the accidental coincidence rate. Also included in this work is a comparison of diameter measurements obtained at SCLERA in 1978 (Caudell 1980) with the classified modes mentioned above. Agreement in this case is at the 3.1 sigma level for both the f-mode (n = O) multiplets with 21 less than or equal to l greater than or equal to 36 and the n = 1,6 less than or equal to l greater than or equal to 12 acoustic modes.
- Research Organization:
- Arizona Univ., Tucson (USA)
- OSTI ID:
- 7182959
- Country of Publication:
- United States
- Language:
- English
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