Optical spectra of the supernova 1993J in M81

Details Optical spectra of the supernova 1993J in M81 Optical spectra of the supernova 1993J in M81

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasj...45l..43t&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 45, no. 3, p. L43-L46.

Astronomy and Astrophysics

Astronomy

12

Stellar Spectra, Supernovae, Visible Spectrum, Emission Spectra, Stellar Spectrophotometry

Scientific paper

We present the optical spectra of supernova 1993J which occurred in M81. The observations were made on 1993 March 31, covering the wavelength region between 4500 and 9000 A. Although there are no remarkable emission features, weak emission lines at both lambda 5858 and 6559 A exist in the spectra. These emission lines can probably be attributed to He I lambda 5876 A and H-alpha lambda 6563 A, respectively. The He I emission is blueshifted by 800 km/s with respect to the H I velocity of the position of SN 1993J.

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