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.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0127d
Tipo:Osservazione
Data di pubblicazione:01 Agosto 2001
Notizie relative:eso0127
Dimensione:800 x 726 px

A proposito delll'oggetto

Nome:CN Leonis
Tipo:Milky Way : Star : Type : Variable : Flare Star
Distanza:8 Anni luce
Categoria:Stars

Formati delle immagini

JPEG grande
88,4 KB

Colori e filtri

BandaLunghezza d'ondaTelescopio
Ultravioletto
U
338 nmVery Large Telescope
UVES