Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-07-09
Astrophys.J.663:1386-1405,2007
Astronomy and Astrophysics
Astrophysics
31 pages, 13 figures, accepted to ApJ
Scientific paper
10.1086/518714
We study non-LTE inversions of the Ca II infrared triplet lines as a tool for inferring physical properties of the quiet Sun. The inversion code is successful in recovering the temperature, velocity and longitudinal magnetic flux density in the photosphere and chromosphere, but the height range where the inversions are sensitive is limited, especially in the chromosphere. We present results of inverting spectropolarimetric observations of the lines in a quiet Sun region. We find three distinct ranges in chromospheric temperature: low temperatures in the internetwork, high temperatures in the enhanced magnetic network and intermediate temperatures associated with low magnetic flux regions in the network. The differences between these regions become more pronounced with height as the plasma-$\beta$ decreases. These inversions support the picture of the chromosphere, especially close to the magnetic network, being highly inhomogeneous both in the vertical and horizontal directions.
Bogdan Thomas
Pietarila Anna
Socas-Navarro Hector
No associations
LandOfFree
Spectropolarimetric inversions of the Ca II 8498 A and 8542 A lines in the quiet Sun does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spectropolarimetric inversions of the Ca II 8498 A and 8542 A lines in the quiet Sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectropolarimetric inversions of the Ca II 8498 A and 8542 A lines in the quiet Sun will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-159690