202 citations · 1.5k across the 23 of their papers we have counts for
23 papers
Early Dust Formation and a Massive Progenitor for SN 2011ja?
J. E. Andrews, Kelsie M. Krafton, Geoffrey C. Clayton +6
SN 2011ja was a bright (I = -18.3) Type II supernova occurring in the nearby edge on spiral galaxy NGC 4945. Flat-topped and multi-peaked H-alpha and H-beta spectral emission lines…
The Destruction of the Circumstellar Ring of SN 1987A
Claes Fransson, Josefin Larsson, Katia Migotto +23
We present imaging and spectroscopic observations with HST and VLT of the ring of SN 1987A from 1994 to 2014. After an almost exponential increase of the shocked emission from the…
Evolution of the 1919 Ejecta of V605 Aquilae
Geoffrey C. Clayton, Howard E. Bond, Lindsey A. Long +7
New imaging of V605 Aql, was obtained in 2009 with HST/WFPC2, which had a nova-like outburst in 1919, and is located at the center of the planetary nebula (PN), Abell 58. This even…
Thirty years of SN 1980K: Evidence for light echoes
Ben E. K. Sugerman, Jennifer E. Andrews, Michael J. Barlow +7
We report optical and mid-infrared photometry of SN 1980K between 2004 and 2010, which show slow monotonic fading consistent with previous spectroscopic and photometric observation…
Late-time Light Curves of Type II Supernovae: Physical Properties of SNe and Their Environment
Masaaki Otsuka, Margaret Meixner, Nino Panagia +9
We present BVRIJHK band photometry of 6 core-collapse supernovae, SNe 1999bw, 2002hh, 2003gd, 2004et, 2005cs, and 2006bc measured at late epochs (>2 yrs) based on Hubble Space Tele…
HST-COS Observations of Hydrogen, Helium, Carbon and Nitrogen Emission from the SN 1987A Reverse Shock
Kevin France, Richard McCray, Steven V. Penton +18
We present the most sensitive ultraviolet observations of Supernova 1987A to date. Imaging spectroscopy from the Hubble Space Telescope-Cosmic Origins Spectrograph shows many narro…