Optical spectrum of SN 2001el and fractional polarisation

The optical spectrum of SN 2001el in NGC 1448 (upper panel). The middle and lower panels show the corresponding fractional polarisations. They measure the different numbers of photons oscillating in perpendicular directions; they are directly related to the geometry of the supernova. The shaded area indicates the spectral signatures of high-velocity matter in the expanding envelope.

Credit:

ESO

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About the Image

Id:eso0325b
Type:Chart
Release date:6 August 2003
Related releases:eso0325
Size:800 x 944 px

About the Object

Name:SN 2001el
Type:• Local Universe : Star : Evolutionary Stage : Supernova
• X - Stars
Distance:55 million light years

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