Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants

Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in the radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise th...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 2004
Materias:
Conduction
ISM: magnetic fields
Methods: numerical
Supernova remnants
X-rays: ISM
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v601_n2I_p885_Velazquez
http://hdl.handle.net/20.500.12110/paper_0004637X_v601_n2I_p885_Velazquez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0004637X_v601_n2I_p885_Velazquez
record_format dspace
spelling paper:paper_0004637X_v601_n2I_p885_Velazquez2023-06-08T14:28:48Z Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants Conduction ISM: magnetic fields Methods: numerical Supernova remnants X-rays: ISM Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in the radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise the density at the center of SNRs, increasing the X-ray emission from these regions. In this work, we have carried out axisymmetric numerical simulations with the adaptive grid Yguazú-a code, which includes advection of the magnetic field and thermal conduction. We have considered cases with anisotropic and isotropic thermal conduction, as well as with no conduction. We have simulated X-ray (as well as radio synchrotron) emission maps from our numerical simulations, which can be directly compared with observations. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v601_n2I_p885_Velazquez http://hdl.handle.net/20.500.12110/paper_0004637X_v601_n2I_p885_Velazquez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Conduction
ISM: magnetic fields
Methods: numerical
Supernova remnants
X-rays: ISM
spellingShingle Conduction
ISM: magnetic fields
Methods: numerical
Supernova remnants
X-rays: ISM
Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
topic_facet Conduction
ISM: magnetic fields
Methods: numerical
Supernova remnants
X-rays: ISM
description Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in the radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise the density at the center of SNRs, increasing the X-ray emission from these regions. In this work, we have carried out axisymmetric numerical simulations with the adaptive grid Yguazú-a code, which includes advection of the magnetic field and thermal conduction. We have considered cases with anisotropic and isotropic thermal conduction, as well as with no conduction. We have simulated X-ray (as well as radio synchrotron) emission maps from our numerical simulations, which can be directly compared with observations.
title Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
title_short Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
title_full Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
title_fullStr Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
title_full_unstemmed Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
title_sort effects of thermal conduction on the x-ray and synchrotron emission from supernova remnants
publishDate 2004
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v601_n2I_p885_Velazquez
http://hdl.handle.net/20.500.12110/paper_0004637X_v601_n2I_p885_Velazquez
_version_ 1768544483172941824

Ejemplares similares