Clumping and Smallscale Mixing in Supernova 1987A

Details Clumping and Smallscale Mixing in Supernova 1987A Clumping and Smallscale Mixing in Supernova 1987A

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263..530s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 263, NO.2/JUL15, P. 530, 1993

Astronomy and Astrophysics

Astronomy

19

Scientific paper

We investigate high-resolution line profiles of Hα, [Fe II] 7155A and Ca II] 7291,7323 A in the spectra of SN 1987A. We identify a common prominent narrow feature in all four lines. We attribute the emission to a fast knot of metals and hydrogen. Our observations provide the first direct evidence for mixing on a small as well as a large scale in the ejecta of SN 1987A. Our observations support the idea that such knots may well have contributed the bulk of the emission of the supernova after the ejecta cooled and dust formed at about day 500. The ratio of the two components of the blend of Ca II] 7291,7323A provides an upper limit on the number density of Ca^+^ of 1 x 10^5^ cm^-3^ on day 673 for both the knot and the rest of the ejecta.

Affiliated with

Also associated with

No associations

Rating

Clumping and Smallscale Mixing in Supernova 1987A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Clumping and Smallscale Mixing in Supernova 1987A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clumping and Smallscale Mixing in Supernova 1987A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1073364