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Early-time Spectropolarimetry of the Aspherical Type II Supernova SN 2023ixf
Sergiy S. Vasylyev, Yi Yang, Alexei V. Filippenko +13
We present six epochs of optical spectropolarimetry of the Type II supernova (SN) 2023ixf ranging from 2 to 15 days after the explosion. Polarimetry was obtained with the Ka…
SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova
W. V. Jacobson-Galan, L. Dessart, R. Margutti +65
We present UV/optical observations and models of supernova (SN) 2023ixf, a type II SN located in Messier 101 at 6.9 Mpc. Early-time ("flash") spectroscopy of SN 2023ixf, obtained p…
What Does the Virial Coefficient of the \Hb Broad-Line Region Depend On?
Lizvette Villafaña, Peter R. Williams, Tommaso Treu +37
We combine our dynamical modeling black hole mass measurements from the Lick AGN Monitoring Project 2016 sample with measured cross-correlation time lags and line widths to recover…