A5095838923- Gamma-ray bursts and supernovae
- Pulsars and Gravitational Waves Research
- Astro and Planetary Science
- Astrophysical Phenomena and Observations
- Astronomy and Astrophysical Research
Florida State University
2024
Thermodynamical explosions of White Dwarfs (WD)are one the keys to high precision cosmology. Nebular spectra, namely mid-infrared (MIR) with JWST are an effective tool probe for multi-dimensional imprints explosion physics WDs and their progenitor systems but also pose a challenge simulations. What we observe as SNe Ia low-energy photons, light curves, spectra detected some days years after explosion. The is emitted from rapidly expanding envelope consisting low-density low-temperature...
Abstract Understanding the Physics of thermonuclear explosions a White Dwarf star (WD), so called Type Ia Supernovae (SNe Ia), provide playground for modern physics, computational methods, and are key to cosmology. We identify new investigate variety observational signatures underlying physical processes related runaway, flame propagation environment. Being intrinsically multi-dimensional phenomena, probing physics requires radiation-hydrodynamics MHD simulations. For this task, we developed...
We present a JWST MIRI/MRS spectrum (5-27 $\mathrm{\mu}$m) of the Type Ia supernova (SN Ia), SN 2021aefx at $+415$ days past $B$-band maximum. The spectrum, which was obtained during iron-dominated nebular phase, has been analyzed in combination with previous observations 2021aefx, to provide first time series analysis an Ia. find temporal evolution [Co III] 11.888 $\mathrm{\mu}$m feature directly traces decay $^{56}$Co. spectra, line profiles, and their are off-center delayed-detonation...
Abstract We present a JWST MIRI medium-resolution spectrometer spectrum (5–27 μ m) of the Type Ia supernova (SN Ia) SN 2021aefx at +415 days past B -band maximum. The spectrum, which was obtained during iron-dominated nebular phase, has been analyzed in combination with previous observations to provide first time series analysis an Ia. find that temporal evolution [Co iii ] 11.888 m feature directly traces decay 56 Co. spectra, line profiles, and their are off-center delayed-detonation...