Non-LTE profiles of the Aliautoionization lines

✍ Scribed by G. D. Finn; J. T. Jefferies

• Book ID: 104642929
• Publisher: Springer
• Year: 1974
• Tongue: English
• Weight: 815 KB
• Volume: 34
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00149599

✦ Synopsis

A non-LTE formulation is given for the transfer of radiation in the autoionizing lines of neutral aluminum at ~,1932 and 21936 through both the Bilderberg and Harvard-Smithsonian model atmospheres. Numerical solutions for the common source function of these lines and their theoretical line profiles are calculated and compared with the corresponding LTE profiles. Our results show that the non-LTE profiles provide a better match with the observations. They also indicate that the continuous opacity of the standard solar models should be increased in this wavelength region if the center-limb variations of observed and theoretical profiles O f these lines are to be in reasonable agreement.