Ion | No. of levels | |
---|---|---|
H I | 22 | |
H II | 1 | |
He I | 35 | |
He II | 26 | |
He III | 1 | |
N I | 10 | |
N II | 38 | |
N III | 36 | |
N IV | 38 | |
N V | 20 | |
N VI | 14 | |
N VII | 2 | |
C I | 15 |
Ion | No. of levels | |
---|---|---|
C II | 32 | |
C III | 40 | |
C IV | 25 | |
C V | 5 | |
C VI | 15 | |
C VII | 1 | |
O I | 13 | |
O II | 37 | |
O III | 33 | |
O IV | 25 | |
O V | 36 | |
O VI | 16 | |
O VII | 15 |
Ion | No. of levels | |
---|---|---|
O VIII | 15 | |
Si III | 24 | |
Si IV | 23 | |
Si V | 1 | |
G II | 1 | |
G III | 8 | |
G IV | 11 | |
G V | 13 | |
G VI | 17 | |
G VII | 11 | |
G VIII | 9 | |
G IX | 9 | |
G X | 1 |
Notes: Element "G" stands for the generic iron-group element, which combines the elements from Sc to Ni in solar relative mixture. In case of the "G" element, the number of levels given in the above table actually refers to superlevels.
For a couple of lines, contour plots of the equivalent width have been prepared. The contours are labeled with Wλ in Angstroem:
H | α | ps | png | |
H | β | ps | png | |
He I | 5876 | ps | png | |
He II | 5412 | ps | png | |
C IV | 5801-5812 | ps | png | |
N III | 4640 | ps | png | |
N IV | 4058 | ps | png | |
N V | 4604-4620 | ps | png | |
N V | 4933-4944 | ps | png |
The following contour plot relates the stellar temperature T, which refers to the hydrostatic radius, to the "effective" temperature T2/3 referring to the radius of the optical depth 2/3. The contours are labeled with log T2/3 in Kelvin.
ps | png |