Researchers announced the latest findings from the James Webb Space Telescope (JWST) of the supernova remnant, Cassiopeia A (Cas A). These observations of the youngest known core collapse supernova in the Milky Way provide insights into the conditions that lead to the formation and destruction of molecules and dust within supernova ejecta.
Observations of the youngest known core collapse supernova in the Milky Way provide insights into the conditions that lead to the formation and destruction of molecules and dust within supernova ejecta.Researchers announced the latest findings from the James Webb Space Telescope of the supernova remnant, Cassiopeia A .
Detailed Spectroscopy: The NIRSpec-IFU spectra of two significant areas in Cas A show differences in how elements were formed. Both regions have strong CO gas signals and show various ionized elements like argon, silicon, calcium, and magnesium. The fundamental CO lines are a few tens of sinusoidal patterns of CO fundamental rovibrational lines with a continuum-like underneath due to the high velocity of the CO molecules.
"To see such hot CO in a young supernova remnant is truly remarkable and indicates that CO formation is still happening thousands of years after the explosion," said Chris Ashall, Assistant Professor at Virginia Tech."Combining such impressive data sets with earlier JWST observations of supernovae will allow us to understand the pathway to molecules and dust formation in a way not previously possible.
While this study offers new perspectives, the debate continues regarding the extent to which supernovae contribute to dust formation in the early universe. Researchers will continue exploring these phenomena with future observations and research to unravel the mysteries of cosmic dust and molecular formation.
Nebulae Astrophysics Stars Astronomy Black Holes Cosmology Extrasolar Planets
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