Spectroscopy of supernova 1987A at 1-5 microns. I - The first year

Details Spectroscopy of supernova 1987A at 1-5 microns. I - The first year Spectroscopy of supernova 1987A at 1-5 microns. I - The first year

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238..193m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 1, 1989, p. 193-223. Research supported by SER

Astronomy and Astrophysics

Astronomy

81

Infrared Astronomy, Line Spectra, Stellar Spectra, Supernova 1987A, Absorption Spectra, Emission Spectra, Red Shift

Scientific paper

IR spectra of SN 1987A are presented from 18, 110, 112, 192, 255, 284, and 349 days after the explosion. The atmospheric windows from 1.05 to 4.1 microns were covered, usually at a spectral resolution greater than 1000. The majority of the emission and absorption features are identified, including H I, He I, C I, O I, Na I Mg I, Ci I, K I, Ca I, Ca II, Fe II, Co II, Ni I, Sr II, CO, CO(+), and possibly AL I, and CS. In addition, the velocity behavior of SN 1987A is examined. The results suggest that mixing of the ejecta occurred. Consideration is also given to the observed redshift of several hundreds of km/s in the emission lines.

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