Supernova 1996cr in ESO 97-G13 [with corrected sentence, re: Cbet 876]

Details Supernova 1996cr in ESO 97-G13 [with corrected sentence, re: Cbet 876] Supernova 1996cr in ESO 97-G13 [with corrected sentence, re: Cbet 876]

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cbet..879...13g&link_type=abstract

Central Bureau Electronic Telegrams, 879, 13 (2007). Edited by Green, D. W. E.

Physics

Scientific paper

A flux-calibrated reduced spectrogram (range 300-850 nm; four 1200-s exposures), obtained of the region around 1996cr with the Very Large Telescope (+ FORS1) in 0".7 seeing on 2006 Jan. 26.30, shows narrow emission lines (most notably strong H_alpha) superimposed on classic broad, asymmetric [O III], [O I], and [Ca II] blended emission profiles -- characteristic features of late-time type-IIn supernovae. A deblended fit to the narrow H_alpha-and-[N II] emission blend gives a line width of about 700 km/s, with a small broader H_alpha base remaining unfitted; the various forbidden lines in the spectrum have similar line widths.

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