Photometric study of the profiles of the Fraunhofer lines in the solar spectrum: Part 1. MG. b. Group

Abstract

The paper consists of the results of the photometric studies carried out by the authors during the last year. After a brief description of the improvements and refine ments perfected in the Direct-Reading Photo-electric Spectrophotometer described by Narayan and Ananthasubrahmanyam, the use of the instrument in the study of the line contours is discussed. Contours obtained by photographic photometry and this instrument are given.