The sculpting of rectangular and jet-like morphologies in supernova remnants by anisotropic equatorially confined progenitor stellar winds

VELAZQUEZ, P. F; MEYER, D.M.-A.; CHIOTELLIS, A.; A. E. CRUZ- ÁLVAREZ; E. M. SCHNEITER; TOLEDO-ROY, J.C.; REYNOSO, E M; ESQUIVEL, A

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2023 vol. 519 p. 5358 - 5358

0035-8711

hermonuclear and core-collapse supernova remnants (SNRs) are the nebular leftovers of defunct stars. Their morphology andemission properties provide insights into the evolutionary history of the progenitor star. But while some SNRs are spherical, asexpected from a point-like explosion expanding into a roughly uniform medium, many others e xhibit comple x non-sphericalmorphologies that are often not easily explained. In this work, we use 3D magnetohydrodynamic simulations to show thatrectangular and jet-like morphologies can be explained by supernovae (SNe), either type Ia or type II, expanding withinanisotropic, bipolar stellar wind bubbles driven by the progenitor star. The stellar wind has an anisotropic density distribution,which channels the SN ejecta differently depending on the anisotropy characteristics. We compute synthetic thermal (X-ray) andnon-thermal (synchrotron) emission maps from our numerical simulations to compare with observa