Supernova 1987A: a Template to Link Supernovae to their Remnants
S. Orlando, M. Miceli, M.L. Pumo, F. Bocchino

TL;DR
This study uses hydrodynamic simulations of SN 1987A to connect early supernova properties with the later remnant's X-ray emission, revealing insights into the explosion energy, ejecta structure, and surrounding environment.
Contribution
It demonstrates that models fitting early supernova observations can also reproduce remnant X-ray emission, linking supernovae to their remnants and constraining environmental and explosion parameters.
Findings
Constrained explosion energy to 1.2-1.4×10^{51} erg.
Determined outer ejecta density profile index α = -8.
Linked X-ray emission features to ejecta and nebula structures.
Abstract
The emission of supernova remnants reflects the properties of both the progenitor supernovae and the surrounding environment. The complex morphology of the remnants, however, hampers the disentanglement of the two contributions. Here we aim at identifying the imprint of SN 1987A on the X-ray emission of its remnant and at constraining the structure of the environment surrounding the supernova. We performed high-resolution hydrodynamic simulations describing SN 1987A soon after the core-collapse and the following three-dimensional expansion of its remnant between days 1 and 15000 after the supernova. We demonstrated that the physical model reproducing the main observables of SN 1987A during the first 250 days of evolution reproduces also the X-ray emission of the subsequent expanding remnant, thus bridging the gap between supernovae and supernova remnants. By comparing model results with…
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