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.

Crédit:

ESO

À propos de l'image

Identification:eso0127d
Type:Observation
Date de publication:1 août 2001
Communiqués de presse en rapport:eso0127
Taille:800 x 726 px

À propos de l'objet

Nom:CN Leonis
Type:Milky Way : Star : Type : Variable : Flare Star
Distance:8 années lumière
Catégorie:Stars

Formats des images

Grand JPEG
88,4 Kio
JPEG taille écran
107,2 Kio

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Ultraviolet
U
338 nmVery Large Telescope
UVES