Early Ultraviolet Observations of Type IIn Supernovae Constrain the Asphericity of Their Circumstellar Material

Maayane T. Soumagnac, Eran O. Ofek, Jingyi Liang, Avishay Gal-Yam, Peter Nugent, Yi Yang, S. Bradley Cenko, Jesper Sollerman, Daniel A. Perley, Igor Andreoni, Cristina Barbarino, Kevin B. Burdge, Rachel J. Bruch, Kishalay De, Alison Dugas, Christoffer Fremling, Melissa L. Graham, Matthew J. Hankins, Nora Linn Strotjohann, Shane MoranShow 25 othersShow lessJames D. Neill, Steve Schulze, David L. Shupe, Brigitta M. Sipőcz, Kirsty Taggart, Leonardo Tartaglia, Richard Walters, Lin Yan, Yuhan Yao, Ofer Yaron, Eric C. Bellm, Chris Cannella, Richard Dekany, Dmitry A. Duev, Michael Feeney, Sara Frederick, Matthew J. Graham, Russ R. Laher, Frank J. Masci, Mansi M. Kasliwal, Marek Kowalski, Thomas Kupfer, Adam A. Miller, Mickael Rigault, Ben Rusholme