Article
On the Transition Rate of the Fe X RED Coronal Line
Astrophysical Journal
Abstract
We present a lifetime measurement of the 3s 23p 5 2 Po 1/2 first excited fine-structure level of the ground state configuration in chlorine-like Fe X, which relaxes to the ground state through a magnetic dipole (M1) transition (the so-called red coronal line) with a wavelength accurately determined to 637.454(1) nm. Moreover, the Zeeman splitting of line was observed. The lifetime of 14.2(2) ms is the most precise one measured in the red wavelength region and agrees well with advanced theoretical predictions and an empirically scaled interpolation based on experimental values from the same isoelectronic sequence.
Department(s)
Physics
Keywords and Phrases
- Atomic Data,
- Atomic Processes,
- Line:profiles,
- Plasmas,
- Stars:coronae,
- Sun:corona
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2009 Institute of Physics - IOP Publishing, All rights reserved.
Publication Date
9-1-2009
Publication Date
01 Sep 2009
Disciplines
Citation Information
Gunter Brenner, Jose R. Crespo Lopez-Urrutia, Sven Bernitt, Daniel Fischer, et al.. "On the Transition Rate of the Fe X RED Coronal Line" Astrophysical Journal Vol. 703 Iss. 1 (2009) p. 68 - 73 ISSN: 0004-637X Available at: http://works.bepress.com/daniel-fischer/49/