3 papers
astro-ph.HE2025
Evolution of X-ray Gas in SN 1987A from 2007 to 2021: Ring Fading and Ejecta Brightening Unveiled through Differential Emission Measure Analysis
Lei Sun, Salvatore Orlando, Emanuele Greco +4
As the nearest supernova (SN) observed since Kepler's SN of 1604, SN 1987A provides an unprecedented opportunity to study in detail the early evolution of supernova remnants (SNRs)…
astro-ph.HE2025
Unusual X-ray Oxygen Line Ratios of SN 1987A Arising From the Absorption of Galactic Hot Interstellar Medium
Lei Sun, Salvatore Orlando, Emanuele Greco +5
Recent high-resolution X-ray spectroscopic studies have revealed unusual oxygen line ratios, such as the high O VII forbidden-to-resonance ratio, in several supernova remnants. Whi…
astro-ph.GA2024
Molecular chemistry induced by J-shock toward supernova remnant W51C
Tian-Yu Tu, Valentine Wakelam, Yang Chen +2
Shock waves from supernova remnants (SNRs) have strong influence on the physical and chemical properties of molecular clouds (MCs). Shocks propagating into magnetized MCs can be cl…