|
Instruments |
|
Click on each image separately to view the larger image, or click
here to view all three simultaneously. |
|
These three
sequences show a Coronal Mass Ejection as it travels through the field of
view of the three coronagraphs that comprise LASCO. This ejection occurred on
23rd February 1997. Towards the
top-left of the
top panel, from the
C1 telescope, a
magnetic loop structure near to the solar surface is seen to erupt outwards.
This image shows the emission from highly ionized iron atoms (Fe XIV) and
indicates temperatures around 2 million Kelvin. The
C2 telescope (
middle panel) allows us to track the morphology of this ejection in detail
as it expands out to the left of the solar disk to 6 solar radii. Here the
scattered sunlight from the excess mass which has been ejected into the
corona is observed. The material can be
tracked further still from the Sun as it moves into the field of the
C3 telescope (
bottom panel) at speeds of around 900 km/s. Panel three shows the ejection
as it passes through the field of view of the outermost coronagraph. LASCO collaborates
well with other instruments on
SOHO and other
spacecraft. |
