Observation of Fe II (26.0 microns) in SN 1987A

Details Observation of Fe II (26.0 microns) in SN 1987A Observation of Fe II (26.0 microns) in SN 1987A

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330l..39e&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 330, July 1, 1988, p. L39-L41. NASA-supported research.

Astronomy and Astrophysics

Astronomy

55

Far Infrared Radiation, Infrared Astronomy, Stellar Envelopes, Stellar Spectra, Supernova 1987A, Iron, Light Curve, Line Spectra, Nuclear Fusion

Scientific paper

The first observation of the 26-micron line from singly ionized iron in SN 1987A is reported. The total flux is 4.5 + or - 0.9 x 20 to the -18th W/sq cm. The line width (FWHM) is 4000 + or - 600 km/s. The minimum iron mass is found to be about 0.02 solar, indicating that the emission originates in the heavy element mantle and not in the hydrogen-rich envelope. Since this mass is less than estimates based on near-infrared measurements or the optical light curve, the emission is probably optically thick. In this case, the flux measurement together with the observed line width suggest a temperature of 3500 + or - 1500 K for the mantle. The broad line width suggests that mixing of the ejected iron with lighter elements in overlying layers has occurred.

Affiliated with

Also associated with

No associations

Rating

Observation of Fe II (26.0 microns) in SN 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 Observation of Fe II (26.0 microns) in SN 1987A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Fe II (26.0 microns) in SN 1987A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1422703