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Supernova in M82

by Integral
Tags: supernova
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Feb4-14, 04:50 PM
P: 54
According to the spectra for SN2014J at +3 days, it shows strong Silicon II absorption line at 607 nm.

At rest, the Silicon II absorption line should be 635.5 nm. Which would mean the spectra is blue-shifted by 4.48% the speed of light. Which would put the speed of the ejecta at ~13,445 km/s.

That would seem to rule out the possibility of SN2014J being a Type Iax SNe, which all have ejecta traveling less than 8,000 km/s.

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