Using Anisotropies as a Forensic Tool for Decoding Supernova Remnants

Abstract We present a method for analyzing supernova remnants (SNRs) by diagnosing the drivers responsible structure at different angular scales. First, we perform suite of hydrodynamic models Rayleigh–Taylor instability (RTI) as (SN) collides with its surrounding medium. Using these demonstrate how power spectral analysis can be used to attribute which scales in an SNR are driven RTI and must caused intrinsic asymmetries initial explosion. predict spectrum turbulence identify dominant mode that represents largest scale efficiently grows via RTI. find this relates density height ejecta, therefore reveals profile SN ejecta. If there is significant on larger than mode, then it likely anisotropies Structure smaller exhibits steep scaling wavenumber, possibly too consistent turbulent cascade, might determined saturation length (although systematic 3D studies needed investigate this). also demonstrate, previous studies, independent magnitude perturbations medium diagnostic unaffected “clumpiness” circumstellar