Theoretical infrared spectra of SN 1987A

Details Theoretical infrared spectra of SN 1987A Theoretical infrared spectra of SN 1987A

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...329l..25c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 329, June 1, 1988, p. L25-L28.

Astronomy and Astrophysics

Astronomy

23

Astronomical Spectroscopy, Infrared Astronomy, Stellar Models, Supernovae, Cobalt Isotopes, Ejecta, Line Spectra, Positive Ions

Scientific paper

The authors apply a simple model for the ejecta of SN 1987A to show that the expected fluxes in infrared fine-structure lines from nickel, cobalt, iron, argon, silicon, sulfur, and neon are likely to be detectable for several years following the supernova explosion. If radioactive decay of 56Co heats and ionizes the gas, the temperature is ⪉7000K, and the elements are largely singly ionized for 800 days after the explosion. Strong infrared lines at λ ⪆ 12 μm are optically thick in this period and provide a probe of the temperature . After 400 - 800 days, detectable infrared lines of Co+, Fe+, Ar+, Si+, S0, and Ne+ become optically thin and probe the mass of the ejecta.

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