2 papers
astro-ph.HE2026
Nebular Spectra of the Extremely Metal-Poor SN II 2023ufx Over a Year After Explosion: A Massive Progenitor and Unique Circumstellar Environment
Evan Jennerjahn, Michael A. Tucker, Christopher S. Kochanek +3
We present new observations of the metal-poor ( ) Type II supernova 2023ufx and its host galaxy. The deep nebular spectrum, obtained roughly a year after explos…
astro-ph.IM2023
Initial Characterization of the First Speedster-EXD550 Event-Driven X-Ray Hybrid Complementary Metal-Oxide Semiconductor Detectors
Joseph M. Colosimo, Hannah M. Grzybowski, Evan C. Jennerjahn +8
Future x-ray observatories will require imaging detectors with fast readout speeds that simultaneously achieve or exceed the other high performance parameters of x-ray charge-coupl…