Lazy loaded imageChromospheric lines
Jul 2, 2021
| Apr 18, 2025
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This work examines specific emission lines. The visibility of the Stokes V signals was roughly tested by naked eyes in AD Leo's spectra.
Possible Chromospheric Lines
Emission lines
Wavelength (nm)
Visibility
Transition terms
Land\'e factors
$g_\mathrm{eff}$
H I (H$\alpha$)
656.28
yes
-
-
1
H I (H$\beta$)
486.13
yes
-
-
1
H I (H$\gamma$)
434.05
yes
-
-
1
H I (H$\delta$)
410.17
yes
-
-
1
H I (H$\epsilon$)
397.01
yes
-
-
1
H I (H8)
3889.064
no
-
-
1
He I
587.56
yes
3/2 - 4/3
7/6
He I
447.15
no
3/2 - 7/6
4/3
He I
402.62
no
3/2 - 6/7
1
He I
388.86
yes
2 - 3/2
5/4
He II
468.57038
?
3/2 - 5/2
9/10
Na II K
589.00
no
1 - 4/3
7/6
Na II H
589.59
no
2 - 2/3
4/3
Ca II K
393.37
yes?
1 - 4/3
7/6
Ca II H
396.85
yes?
2 - 2/3
4/3
Ca II triplet
849.80
no
0.8 - 4/3
1.07
Ca II triplet
854.21
no
1.2 - 4/3
1.1
Ca II triplet
866.21
yes
0.8 - 2/3
5/6
Fe II?
390.56
no
?
?
?
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