Broad_And_Narrow 
========================

+-----------+---------------+-----------+--------+
| center    | element       | line_name | rarity |
+===========+===============+===========+========+
| 3970.072  | Hydrogen      | Hε        | common |
+-----------+---------------+-----------+--------+
| 4101.742  | Hydrogen      | Hδ        | common |
+-----------+---------------+-----------+--------+
| 1304.35   | OxygenSilicon | OI+SiII   | common |
+-----------+---------------+-----------+--------+
| 1215.67   | Hydrogen      | Lyalpha   |        |
+-----------+---------------+-----------+--------+
| 1240.8125 | Nitrogen      | NV        |        |
+-----------+---------------+-----------+--------+
| 1031.926  | Oxigen        | OVIa      |        |
+-----------+---------------+-----------+--------+
| 1037.617  | Oxigen        | OVIb      |        |
+-----------+---------------+-----------+--------+
| 1393.755  | Silicon       | SiIV      |        |
+-----------+---------------+-----------+--------+
| 1402.77   | Oxygen        | OIV]      |        |
+-----------+---------------+-----------+--------+
| 1549.4795 | Carbon        | CIV       |        |
+-----------+---------------+-----------+--------+
| 1640.42   | Helium        | HeIIa     |        |
+-----------+---------------+-----------+--------+
| 2733.29   | Helium        | HeIIb     |        |
+-----------+---------------+-----------+--------+
| 2945.106  | Helium        | HeIa      |        |
+-----------+---------------+-----------+--------+
| 3187.745  | Helium        | HeIb      |        |
+-----------+---------------+-----------+--------+
| 3203.1    | Helium        | HeIIc     |        |
+-----------+---------------+-----------+--------+
| 4143.761  | Helium        | HeIc      |        |
+-----------+---------------+-----------+--------+
| 4340.471  | Hydrogen      | Hg        |        |
+-----------+---------------+-----------+--------+
| 4471.479  | Helium        | HeId      |        |
+-----------+---------------+-----------+--------+
| 4685.71   | Helium        | HeIId     |        |
+-----------+---------------+-----------+--------+
| 4861.333  | Hydrogen      | Hbeta     |        |
+-----------+---------------+-----------+--------+
| 5877.2539 | Helium        | HeIe      |        |
+-----------+---------------+-----------+--------+
| 6562.82   | Hydrogen      | Halpha    |        |
+-----------+---------------+-----------+--------+
| 6678.2    | Helium        | HeIf      |        |
+-----------+---------------+-----------+--------+
| 7065.196  | Helium        | HeIg      |        |
+-----------+---------------+-----------+--------+
| 7281.349  | Helium        | HeIh      |        |
+-----------+---------------+-----------+--------+
| 7816.136  | Helium        | HeIi      |        |
+-----------+---------------+-----------+--------+
| 8236.79   | Helium        | HeIIe     |        |
+-----------+---------------+-----------+--------+
| 8446.36   |               | OIe       |        |
+-----------+---------------+-----------+--------+
| 8598.392  | Hydrogen      | Pa14      |        |
+-----------+---------------+-----------+--------+
| 8665.019  | Hydrogen      | Pa13      |        |
+-----------+---------------+-----------+--------+
| 8750.472  | Hydrogen      | Pa12      |        |
+-----------+---------------+-----------+--------+
| 8862.782  | Hydrogen      | Pa11      |        |
+-----------+---------------+-----------+--------+
| 9014.909  | Hydrogen      | Pa10      |        |
+-----------+---------------+-----------+--------+
| 9229.014  | Hydrogen      | Pa9       |        |
+-----------+---------------+-----------+--------+
| 9545.969  | Hydrogen      | Pae       |        |
+-----------+---------------+-----------+--------+
| 10049.368 | Hydrogen      | Pad       |        |
+-----------+---------------+-----------+--------+
| 10027.73  | Helium        | HeIj      |        |
+-----------+---------------+-----------+--------+
| 10031.16  | Helium        | HeIk      |        |
+-----------+---------------+-----------+--------+
| 10830.34  | Helium        | HeIk      |        |
+-----------+---------------+-----------+--------+
| 10938.086 | Hydrogen      | Pag       |        |
+-----------+---------------+-----------+--------+