Artículos de revistas
Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants
Fecha
2004-02-01Registro en:
Velazquez, Pablo F.; Martinell, Julio J.; Raga, Alejandro C.; Giacani, Elsa Beatriz; Effects of thermal conduction on the X-ray and synchrotron emission from supernova remnants; IOP Publishing; Astrophysical Journal; 601; 2; 1-2-2004; 885-895
0004-637X
CONICET Digital
CONICET
Autor
Velazquez, Pablo F.
Martinell, Julio J.
Raga, Alejandro C.
Giacani, Elsa Beatriz
Resumen
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.