Spectral Imaging with a CID Camera.
Abstract
This report describes a program of spectral imaging observations of the solar atmosphere using the Sacramento Peak Vacuum Tower Telescope. The observations were obtained with Lockheed instruments including: an active tilt mirror for image motion compensation; polarization analyzer; narrowband tunable birefringent filter; photoelectric cid array camera; digital video image processor; and a microcomputer controller. Five observing runs were made, three of them with the entire system in operation. The images obtained were processed to measure magnetic and velocity fields in the solar photosphere with very high spatial resolution - 0.5 arcseconds on the best frames. Sets of these images have been studied to address three scientific problems; (1) The relationship among small magnetic flux tubes, downdrafts and granulation; (2) The puzzling flux changes in isolated mangetic features in a decaying active region; (3) The temporal power spectrum of the magnetogram signal in isolated flux tubes. Examples of the narrowband images are included in the report, along with abstracts and manuscripts of papers, resulting from this research. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 22, 1985
- Accession Number
- ADA161608
Entities
People
- Theodore D. Tarbell
Organizations
- Lockheed Martin Missiles and Space