JWST/NIRSpec data on SN 2024uj reveal complex He I emission overlapping central Ca and O, plus CO and dust, favoring a thermonuclear origin from low-mass white dwarfs.
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Late-time IR spectroscopy of SN 2024ggi shows varied line morphologies implying chemical inhomogeneity and aspherical ionization, with modeling favoring 12-15 solar mass progenitors but only high-mass energetic 3D simulations matching the observed Ni mixing extent.
SN 2026gzf exhibits early circumstellar interaction with 0.02 solar masses of material and decadal pre-explosion variability suggesting enhanced eruptive mass loss.
Jittering jets in core-collapse supernovae enhance dust formation and imprint jet-shaped morphologies on the dust in remnants, supporting the jittering jets explosion mechanism.
citing papers explorer
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JWST Observations of Calcium-Strong Transients: I. Complex Nebular He Emission in SN 2024uj
JWST/NIRSpec data on SN 2024uj reveal complex He I emission overlapping central Ca and O, plus CO and dust, favoring a thermonuclear origin from low-mass white dwarfs.
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Mapping 3-D Explosive Nucleosynthesis with Type II Supernova Infrared Emission Lines
Late-time IR spectroscopy of SN 2024ggi shows varied line morphologies implying chemical inhomogeneity and aspherical ionization, with modeling favoring 12-15 solar mass progenitors but only high-mass energetic 3D simulations matching the observed Ni mixing extent.
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Decadal pre-explosion activity and circumstellar interaction in a supernova
SN 2026gzf exhibits early circumstellar interaction with 0.02 solar masses of material and decadal pre-explosion variability suggesting enhanced eruptive mass loss.
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Jittering jets promote dust formation in core-collapse supernovae
Jittering jets in core-collapse supernovae enhance dust formation and imprint jet-shaped morphologies on the dust in remnants, supporting the jittering jets explosion mechanism.