Effects of line blanketing on the solar windows

✍ Scribed by Duane Carbon; Owen Gingerich; Robert Kurucz

• Book ID: 104645647
• Publisher: Springer
• Year: 1968
• Tongue: English
• Weight: 471 KB
• Volume: 3
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00154243

✦ Synopsis

Theincreasingly high flux predicted to the violet of 4500 ~ by many model solar atmospheres stands in contradiction to the observations. Since one possible cause of the disagreement is that the solar 'windows' by which the observed continuum is established might be obscured by line wings, we have made detailed calculations of these narrow spectral regions. With the exception of a few windows affected by the wings of Balmer lines, those redward of the Balmer discontinuity appear free of line blanketing. Even the assumption that the ultraviolet continuum is depressed 5 % by unseen lines not included in our calculations leaves substantial disagreements between the models and observations. The discrepancies could perhaps be explained by a veil of weak lines across the ultraviolet spectrum.

Our calculations indicate that the windows become narrower at shorter wavelengths. Many of the ambiguities to the violet of 3600 ~ would be resolved if spectrophotometric tracings with a band pass of 10 m~ were available,