Figure 4 from RAPIDLY RISING TRANSIENTS IN THE SUPERNOVA

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RAPIDLY RISING TRANSIENTS IN THE SUPERNOVA—SUPERLUMINOUS SUPERNOVA GAP

Authors: Iair Arcavi, William M. Wolf, D. Andrew Howell, Lars Bildsten, Giorgos Leloudas, Delphine Hardin, Szymon Prajs, Daniel A. Perley, Gilad Svirski, Avishay Gal-Yam, Boaz Katz, Curtis McCully, S. Bradley Cenko, Chris Lidman, Mark Sullivan, Stefano Valenti, Pierre Astier, Cristophe Balland, Ray G. Carlberg, Alex Conley, Dominique Fouchez, Julien Guy, Reynald Pain, Nathalie Palanque-Delabrouille, Kathy Perrett, Chris J. Pritchet, Nicolas Regnault, James Rich, and Vanina Ruhlmann-Kleider

2016 The Astrophysical Journal 819 35.

Provider: AAS Journals

Caption: Figure 4.

Spectra of the host galaxies of our events and of Dougie. Several narrow emission and/or absorption features are used to securely determine the redshift of each galaxy. The host galaxies of our events all exhibit strong emission features, indicative of ongoing star formation. Dougie’s host, in contrast, shows only absorption features. It is therefore less likely that Dougie was the explosion of a massive star.

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