Improved values for the solar micro- and macro-turbulent filter functions

✍ Scribed by Cornelis Jager; Jan Vermue

• Publisher: Springer
• Year: 1977
• Tongue: English
• Weight: 236 KB
• Volume: 54
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00159921

✦ Synopsis

The contributions of any arbitrary photospheric velocity field to (macroturbulent) line displacement, and to (microturbulent) line broadening can be expressed by the macro-and micro-turbulent filters fM(k) and ft(k), where k is the wavenumber of the energy spectrum in which the line-of-sight component of the velocity field can be decomposed. As a correction to a previous computation of/M and f/we give in this Note improved values for the filter functions for weak lines in LTE. An example of the way to use the filter functions is given.