We present UV and/or optical observations and models of SN 2023ixf, a type II supernova
(SN) located in Messier 101 at 6.9 Mpc. Early time (flash) spectroscopy of SN 2023ixf …

We present the discovery of the Type II supernova SN 2023ixf in M101 and follow-up
photometric and spectroscopic observations, respectively, in the first month and week of its …

The early evolution of a supernova (SN) can reveal information about the environment and
the progenitor star. When a star explodes in vacuum, the first photons to escape from its …

We present preexplosion optical and infrared (IR) imaging at the site of the type II supernova
(SN II) 2023ixf in Messier 101 at 6.9 Mpc. We astrometrically registered a ground-based …

We present the optical spectroscopic evolution of SN 2023ixf seen in subnight cadence
spectra from 1.18 to 15 days after explosion. We identify high-ionization emission features …

We analyze pre-explosion near-and mid-infrared (IR) imaging of the site of SN 2023ixf in the
nearby spiral galaxy M101 and characterize the candidate progenitor star. The star displays …

Abstract The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is scheduled to be
launched to geostationary orbit in 2027. It will carry a telescope with an unprecedentedly …

We present the densely sampled early light curve of the Type II supernova (SN) 2023ixf, first
observed within hours of explosion in the nearby Pinwheel Galaxy (Messier 101; 6.7 Mpc) …

We present early-phase panchromatic photometric and spectroscopic coverage spanning
the far-ultraviolet to near-infrared regime of the nearest hydrogen-rich core-collapse …

We present a series of high-resolution echelle spectra of SN 2023ixf in M101, obtained
nightly during the first week or so after discovery using PEPSI on the Large Binocular …