Abstract
During the total solar eclipse of 11 June 1983 over Java, Indonesia, a dual-channel Fabry-Perot interferometric system was used to study simultaneously the coronal emission lines at 5303 Å (Fe xiv) and at 6374 Å (Fe x). The two coronal lines were spatially separated by a multilayer interference beam splitter; the beams then entered two separate optically contacted Fabry-Perot systems operating off-axis. The resulting interference fringes were imaged on fine-grain film. Initial results indicate an emission corona confined largely within 1.2 R⊙. Doppler temperatures derived from the width of the 5303-Å line appear to be appreciably lower than similar temperatures determined during the solar-maximum eclipse of 1980.
© 1984 Optical Society of America
Full Article | PDF ArticleMore Like This
G. Henderson
Appl. Opt. 9(12) 2635-2642 (1970)
Matthew W. Noble, David M. Rust, Pietro N. Bernasconi, Jay M. Pasachoff, Bryce A. Babcock, and Megan A. Bruck
Appl. Opt. 47(31) 5744-5749 (2008)
B. Fort
Appl. Opt. 9(12) 2643-2647 (1970)