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Binary progenitor systems for Type Ic supernovae [PDF]

open access: yesNature Communications
Core-collapse supernovae are explosions of massive stars at the end of their evolution. They are responsible for metal production and for halting star formation, having a significant impact on galaxy evolution.
Martín Solar   +20 more
doaj   +4 more sources

Optical Color of Type Ib and Ic Supernovae and Implications for Their Progenitors [PDF]

open access: yesThe Astrophysical Journal, 2023
Type Ib and Ic supernovae (SNe Ib/Ic) originate from hydrogen-deficient massive star progenitors, of which the exact properties are still much debated.
Harim Jin   +2 more
doaj   +2 more sources

Estimating Ejecta Masses of Stripped-envelope Supernovae Using Late-time Light Curves

open access: yesThe Astrophysical Journal, 2023
Stripped-envelope supernovae (SESNe) are a subclass of core-collapse supernovae that are deficient in hydrogen (SN IIb, SN Ib) and possibly helium (SN Ic) in their spectra.
Annastasia Haynie, Anthony L. Piro
doaj   +1 more source

The Iron Yield of Core-collapse Supernovae

open access: yesThe Astrophysical Journal, 2023
We present a systematic analysis of 191 stripped-envelope supernovae (SE SNe), aimed at computing their ^56 Ni masses from the luminosity in their radioactive tails ( ${M}_{\mathrm{Ni}}^{\mathrm{tail}}$ ) and/or in their maximum light, and the mean ^56 ...
Ósmar Rodríguez, Dan Maoz, Ehud Nakar
doaj   +1 more source

Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies

open access: yesThe Astrophysical Journal, 2023
We measure the molecular gas environment near recent (
Ness Mayker Chen   +21 more
doaj   +1 more source

Near-infrared and Optical Observations of Type Ic SN 2021krf: Luminous Late-time Emission and Dust Formation

open access: yesThe Astrophysical Journal, 2023
We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes.
Aravind P. Ravi   +31 more
doaj   +1 more source

SN 2022jli: A Type Ic Supernova with Periodic Modulation of Its Light Curve and an Unusually Long Rise

open access: yesThe Astrophysical Journal Letters, 2023
We present multiwavelength photometry and spectroscopy of SN 2022jli, an unprecedented Type Ic supernova discovered in the galaxy NGC 157 at a distance of ≈ 23 Mpc. The multiband light curves reveal many remarkable characteristics. Peaking at a magnitude
T. Moore   +44 more
doaj   +1 more source

Inferring the Progenitor Mass–Kinetic Energy Relation of Stripped-envelope Core-collapse Supernovae from Nebular Spectroscopy

open access: yesThe Astrophysical Journal, 2023
The relation between the progenitor mass and the kinetic energy of the explosion is a key toward revealing the explosion mechanism of stripped-envelope core-collapse supernovae (SESNe).
Qiliang Fang, Keiichi Maeda
doaj   +1 more source

Limit on Supernova Emission in the Brightest Gamma-Ray Burst, GRB 221009A

open access: yesThe Astrophysical Journal Letters, 2023
We present photometric and spectroscopic observations of the extraordinary gamma-ray burst (GRB) 221009A in search of an associated supernova. Some past GRBs have shown bumps in the optical light curve that coincide with the emergence of supernova ...
Manisha Shrestha   +32 more
doaj   +1 more source

Photospheric Velocity Evolution of SN 2020bvc: Signature of r-process Nucleosynthesis from a Collapsar

open access: yesThe Astrophysical Journal Letters, 2023
Whether binary neutron star mergers are the only astrophysical site of rapid neutron-capture process ( r -process) nucleosynthesis remains unknown.
Long Li, Shu-Qing Zhong, Zi-Gao Dai
doaj   +1 more source

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