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Spectroscopy of the first resolved strongly lensed Type Ia supernova iPTF16geu
J. Johansson, A. Goobar, S. H. Price +14
We report the results from spectroscopic observations of the multiple images of the strongly lensed Type Ia supernova (SN Ia), iPTF16geu, obtained with ground based telescopes and…
The Redshift Completeness of Local Galaxy Catalogs
S. R. Kulkarni, D. A. Perley, A. A. Miller
There is considerable interest in understanding the demographics of galaxies within the local universe (defined, for our purposes, as the volume within a radius of 200 Mpc or z<0.0…
Detection of Broad H Emission Lines in the Late-time Spectra of a Hydrogen-poor Superluminous Supernova
Lin Yan, R. Quimby, E. Ofek +14
iPTF13ehe is a hydrogen-poor superluminous supernova (SLSN) at z=0.3434, with a slow-evolving light curve and spectral features similar to SN2007bi. It rises within (83-148)days (r…
The rise of SN2014J in the nearby galaxy M82
A. Goobar, J. Johansson, R. Amanullah +31
We report on the discovery of SN2014J in the nearby galaxy M82. Given its proximity, it offers the best opportunity to date to study a thermonuclear supernova over a wide range of…