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A peculiar supernova in the spiral galaxy NGC4618

Filippenko, Alexei V. and Sargent, Wallace L. W. (1985) A peculiar supernova in the spiral galaxy NGC4618. Nature, 316 (6027). pp. 407-412. ISSN 0028-0836. doi:10.1038/316407a0.

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Optical spectra of a bright stellar object near the nucleus of the spiral galaxy NGC4618 reveal strong, very broad emission lines similar to those in quasars but having the wrong relative wavelengths. Although lines of hydrogen and helium are absent, the most prominent features can be attributed to neutral atoms of oxygen, sodium, and magnesium at the redshift of NGC4618. The object is almost certainly a supernova whose highly unusual spectrum may be indicative of a fundamentally new subclass.

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Filippenko, Alexei V.0000-0003-3460-0103
Additional Information:© Nature Publishing Group 1985. Received 19 March; accepted 10 June 1985. We thank J. Carrasco, J. Henning, and D. Tennant for assistance at Palomar Observatory. A photograph confirming the presence of the supernova was obtained by E. A. Harlan with the 0.9-m Crossley telescope at Lick Observatory. R. A. Sramek provided radio data from the Very Large Array in Socorro, New Mexico. Informative discussions with K. Ebneter, J. L. Greenstein, C. F. McKee, and J. B. Oke are appreciated. This work was supported by the Miller Institute for Basic Research in Science (University of California at Berkeley) and by NSF grant AST 82-16544.
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Miller Institute for Basic Research in ScienceUNSPECIFIED
NSFAST 82-16544
Issue or Number:6027
Record Number:CaltechAUTHORS:20190507-145525388
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95317
Deposited By: George Porter
Deposited On:07 May 2019 22:42
Last Modified:16 Nov 2021 17:11

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