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A detailed study of the optical attenuation of gamma-ray bursts in the Swift era
O. M. Littlejohns, N. R. Butler, A. Cucchiara +16
We present optical and near-infrared (NIR) photometry of 28 gamma-ray bursts (GRBs) detected by the \textit{Swift} satellite and rapidly observed by the Reionization and Transients…
Spitzer observations of SN 2014J and properties of mid-IR emission in Type Ia supernovae
J. Johansson, A. Goobar, M. M. Kasliwal +13
SN 2014J in M82 is the closest Type Ia supernova (SN Ia) in decades. The proximity allows for detailed studies of supernova physics and provides insights into the circumstellar and…
Early Emission from the Type IIn Supernova 1998S at High Resolution
Isaac Shivvers, Jose H. Groh, Jon C. Mauerhan +3
The well-studied Type IIn supernova (SN) 1998S is often dubbed the prototypical SN IIn, and it provides a unique opportunity to study its progenitor star from within as the SN ligh…
Uncovering the Putative B-Star Binary Companion of the SN 1993J Progenitor
Ori D. Fox, K. Azalee Bostroem, Schuyler D. Van Dyk +9
The Type IIb supernova (SN) 1993J is one of only a few stripped-envelope supernovae with a progenitor star identified in pre-explosion images. SN IIb models typically invoke H enve…
A Trio of GRB-SNe: GRB 120729A, GRB 130215A / SN 2013ez and GRB 130831A / SN 2013fu
Z. Cano, A. de Ugarte Postigo, A. Pozanenko +62
We present optical and near-infrared (NIR) photometry for three gamma-ray burst supernovae (GRB-SNe): GRB 120729A, GRB 130215A / SN 2013ez and GRB 130831A / SN 2013fu. In the case…
Extensive HST Ultraviolet Spectra and Multi-wavelength Observations of SN 2014J in M82 Indicate Reddening and Circumstellar Scattering by Typical Dust
Ryan J. Foley, O. D. Fox, C. McCully +20
SN 2014J in M82 is the closest detected Type Ia supernova (SN Ia) in at least 28 years and perhaps in 410 years. Despite its small distance of 3.3 Mpc, SN 2014J is surprisingly fai…