Investigating the morphology of the supernova remnant G349.7+00.2 in the medium with a density gradient

Abstract

G349.7 + 00.2 is a young Galactic supernova remnant (SNR) with a mushroom morphology in radio and X-rays, and it has been detected across the entire electromagnetic spectrum from radio to high energy $\gamma$-rays. Moreover, the remnant is interacting with a molecular cloud based on the observations in the radio and infrared band. The reason for the formation of the periphery and the dynamical evolution of the remnant are investigated using 3D hydrodynamical (HD) simulations. Under the assumption that the supernova ejecta is evolved in the medium with a density gradient, the shell is composed of two hemispheres with different radiuses, and the smaller hemisphere is in relatively dense media. The resulting periphery of remnant is consistent with detected ones, and it can be concluded that the peculiar periphery of G349.7+00.2 can be reproduced as the remnants interacting with the medium with a density gradient.

arXiv comment8 pages, 5 figures

References in corpus (16)

• PLUTO: a Numerical Code for Computational Astrophysics
• The PLUTO Code for Adaptive Mesh Computations in Astrophysical Fluid Dynamics
• Fermi LAT Observations of Supernova Remnants Interacting with Molecular Clouds
• On the Origin of Strong Magnetic Fields in Young Supernova Remnants
• Evolution of high-energy particle distribution in Supernova Remnants
• CO observations toward supernova remnants with associated OH 1720 MHz masers
• Chandra detection of ejecta in the small-diameter supernova remnant G349.7+0.2
• A molecular shell with star formation toward the supernova remnant G349.7+0.2
• Abundances in the Ejecta of Core Collapse Supernova Remnants, G350.1-0.3 and G349.7+0.2
• An ASCA Study of the High Luminosity SNR G349.7+0.2
• SNR G349.7+0.2: A gamma-ray source in the far 3 kpc arm of the Galactic center
• Shocked molecular gas towards the SNR G359.1-0.5 and the Snake
• An explanation of the formation of the peculiar periphery of Tycho's supernova remnant
• Searching for Overionized Plasma in the Gamma-ray Emitting Supernova Remnant G349.7$+$0.2
• Early acceleration of electrons and protons at the nonrelativistic quasiparallel shocks with different obliquity angles
• Numerically investigating the morphology of the supernova remnant SN 1006 in the ambient medium with a density discontinuity

Cited by in corpus (2)

• Identifying jittering-jet-shaped ejecta in the Cygnus Loop supernova remnant
• Magneto hydrodynamic simulations of the supernova remnant G1.9+0.3