Share Email Print

Proceedings Paper

Long Time-Base Monitoring Of The Solar Spectrum-An Instrumental Challenge
Author(s): W. C. Livingston
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Fraunhofer spectrum appears to show subtle variability at the 0.1% level indicative of non-constant temperature and possibly mechanical wave flux in the solar atmosphere. Persistent or secular changes in these physical conditions on time scales of years has terrestrial climate implications. Spectrum line monitoring requires control of spectrometer scattered light, zero point, resolution, and linearity to high accuracy (< 0.05%). Inevitably system components such as filters, detectors, gratings, etc. will break or deteriorate and have to be replaced. The general problem of maintaining a time invariant instrument is discussed.

Paper Details

Date Published: 3 May 1979
PDF: 6 pages
Proc. SPIE 0172, Instrumentation in Astronomy III, (3 May 1979); doi: 10.1117/12.957076
Show Author Affiliations
W. C. Livingston, Kitt Peak National Observatory (United States)

Published in SPIE Proceedings Vol. 0172:
Instrumentation in Astronomy III
David L. Crawford, Editor(s)

© SPIE. Terms of Use
Back to Top