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Performance of a stabilized Fabry-Perot solar analyzer

Published online by Cambridge University Press:  03 August 2017

D. M. Rust ,
T. Appourchaux  and
F. Hill
D. M. Rust
Affiliation:
The Johns Hopkins University Applied Physics Laboratory Johns Hopkins Road, Laurel, Maryland 20707 USA
T. Appourchaux
Affiliation:
The Johns Hopkins University Applied Physics Laboratory Johns Hopkins Road, Laurel, Maryland 20707 USA
F. Hill
Affiliation:
National Solar Observatory*, P.O. Box 26732 Tucson, Arizona, 85726, USA

Abstract

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A unique solar lineshift analyzer described by Rust, Burton and Leistner (1986) has been used at the Sacramento Peak Observatory to study solar oscillations. Operation of this “Stablized Solar Analyzer” (SSA) depends on the electro-optic effect in crystalline lithium niobate, the substrate of the solid Fabry-Perot etalon. Voltage on the etalon shifts the passband by ∼ 4.5 × 10−4 Å/V. The etalon has a passband of 0.175 Å at 6102.7 Å. The stabilization system uses a tunable diode laser to relate the Fabry-Perot passband to the D2 line of atomic Cs 133, at 8521.46 Å. This system reduced instrumental noise to less than Δλ/λ = 10−9 over a six-hour interval.

Type
Chapter 8: Techniques for Observing Solar Oscillations
Information
Symposium - International Astronomical Union , Volume 123: Advances In Hello- and Asteroseismology , 1988 , pp. 475 - 479
Copyright
Copyright © Reidel 1988 

References

1. Hill, F., Rust, D. M. and Appourchaux, T., 1987, ‘Rotation in the Solar Convection Zone Inferred from Fabry-Perot Observations of the 5 min Oscillations,’ IAU Symp. 123 – Advances in Helio- and Asterosiesmology (Christensen-Dalsgaard, J., ed.), D. Reidel, Dordrecht (these proceedings).Google Scholar
2. Rust, D. M., 1985a, ‘Some Design Considerations for a Satellite-Borne Magnetograph,’ Workshop on Measurements of Solar Vector Magnetic Fields (Hagyard, M. J., ed.), NASA Conference Publication 2374 , p. 141.Google Scholar
3. Rust, D. M., 1985b, ‘New Materials Applications in Solar Spectral Analysis,’ Aust. J. Phys. 38, 781.Google Scholar
4. Rust, D. M., Burton, C. H. and Leistner, A. J., 1986, ‘A Tunable, Solid, Fabry-Perot Etalon for Solar Seismology,’ Soc. Photo-Opt. Inst. Eng. Conf. Proc. 627 (in press).Google Scholar
5. Rust, D. M., Kunski, R. and Cohn, R.F., 1986, ‘Development of Ultra-stable Filters and Lasers for Solar Seismology,’ APL Technical Digest 7, 209.Google Scholar