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A Linear Relation Between the Color Stretch and the Rising Color Slope of Type Ia Supernovae
Ping Chen, Subo Dong, Chris Ashall +34
Using data from the Complete Nearby () sample of Type Ia Supernovae (CNIa0.02), we discover a linear relation between two parameters derived from the color cur…
The supernova of the MAGIC GRB190114C
A. Melandri, L. Izzo, E. Pian +42
We observed GRB190114C (redshift z = 0.4245), the first GRB ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hub…
Carnegie Supernova Project: kinky -band light-curves of Type Ia supernovae
P. J. Pessi, E. Y. Hsiao, G. Folatelli +19
We present detailed investigation of a specific -band light-curve feature in Type Ia supernovae (SNe Ia) using the rapid cadence and high signal-to-noise ratio light-curves obta…
The Whisper of a Whimper of a Bang: 2400 Days of the Type Ia SN 2011fe Reveals the Decay of Fe
M. A. Tucker, B. J. Shappee, C. S. Kochanek +4
We analyze new multi-filter Hubble Space Telescope (HST) photometry of the normal Type Ia supernova (SN Ia) 2011fe out to days after maximum light, the latest observ…
A Rapid Ionization Change in the Nebular-Phase Spectra of the Type Ia SN 2011fe
M. A. Tucker, C. Ashall, B. J. Shappee +3
We present three new spectra of the nearby Type Ia supernova (SN Ia) 2011fe covering days after maximum light and show that the ejecta undergoes a rapid ionizatio…
Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-Envelope Core-Collapse Supernovae
M. Shahbandeh, E. Y. Hsiao, C. Ashall +29
We present 75 near-infrared (NIR; 0.82.5 m) spectra of 34 stripped-envelope core-collapse supernovae (SESNe) obtained by the Carnegie Supernova Project-II (CSP-II), encompass…