A. Haynie

collaborators

3 papers

astro-ph.HE2025

Multi-Phase Shock Cooling Emission in Ultra-Stripped Supernovae

Annastasia Haynie, Samantha C. Wu, Anthony L. Piro +1

Ultra-stripped and Type Ibn supernovae (USSNe and SNe Ibn, respectively) are fast-evolving, hydrogen-poor transients that often show signs of interaction with dense circumstellar m…

astro-ph.HE2024

SN 2023zaw: an ultra-stripped, nickel-poor supernova from a low-mass progenitor

Kaustav K. Das, Christoffer Fremling, Mansi M. Kasliwal +34

We present SN 2023zaw $-$ a sub-luminous ( $M_{r} = - 16.7$ mag) and rapidly-evolving supernova ( $t_{1/2, r} = 4.9$ days), with the lowest nickel mass ( $\approx 0.002$ …

astro-ph.HE2024

Final Moments II: Observational Properties and Physical Modeling of CSM-Interacting Type II Supernovae

W. V. Jacobson-GalÃ¡n, L. Dessart, K. W. Davis +52

We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early-time ( $I^´ t < 2$ days) spectra show transient, narrow emission line…