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.

Credit:

ESO

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About the Image

Id:eso0127d
Type:Observation
Release date:1 August 2001
Related releases:eso0127
Size:800 x 726 px

About the Object

Name:CN Leonis
Type:• Milky Way : Star : Type : Variable : Flare Star
• X - Stars
Distance:8 light years

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Colours & filters

BandWavelengthTelescope
Ultraviolet
U
338 nm Very Large Telescope
UVES

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