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Coronal Fe XIII emission line in CN Leonis

This chart represents a "decomposition" of an emission line at wavelength 3388.1 Ångstrom (338.81 nm) into two components. The observed spectral intensity is indicated by the ''step''-curve (in blue). As will be seen, the sum (fully drawn red line) of a strong and narrow line from titanium ions (Ti II) in the stellar chromosphere (dashed, in red) and an underlying, much broader, coronal line from 12 times ionised iron (Fe XIII; dashed, in red, slightly to the right of the titanium line) fits the observed spectral intensity curve perfectly.

Kredit:

ESO

O snímku

Id:eso0127d
Typ:Pozorování
Datum zveřejnění:1. srpna 2001
Související články:eso0127
Velikost:800 x 726 px

O objektu

Jméno:CN Leonis
Typ:Milky Way : Star : Type : Variable : Flare Star
Vzdálenost:8 světelné roky
Kategorie:Stars

Image Formats


Barvy & filtry

PásmoVlnová délkaDalekohled
Ultrafialový
U
338 nmVery Large Telescope
UVES