{\it Suzaku} observation of Galactic supernova remnant CTB 37A (G348.5+0.1)

Abstract

We present here the results of the observation of CTB 37A obtained with the X-ray Imaging Spectrometer onboard the {\it Suzaku} satellite. The X-ray spectrum of CTB 37A is well fitted by two components, a single-temperature ionization equilibrium component (VMEKAL) with solar abundances, an electron temperature of $k{T}_{\mathrm{e}}\sim 0.6$ keV, absorbing column density of $N_{\mathrm{H}}\sim 3\times 10^{22}$ $\mathrm{c}{\mathrm{m}}^{-2}$ and a power-law component with photon index of $\Gamma$ $\sim 1.6$. The X-ray spectrum of CTB 37A is characterized by clearly detected K-shell emission lines of Mg, Si, S, and Ar. The plasma with solar abundances supports the idea that the X-ray emission originates from the shocked interstellar material. The ambient gas density, and age of the remnant are estimated to be $\sim 1f^{-1/2}$$\mathrm{c}{\mathrm{m}}^{-3}$ and $\sim 3\times 10^4{f}^{1/2}$ yr, respectively. The center-filling X-ray emission surrounded by a shell-like radio structure and other X-ray properties indicate that this remnant would be a new member of mixed-morphology supernova remnant class.

References in corpus (1)

• Mixed-Morphology Supernova Remnants in X-rays: Isothermal Plasma in HB21 and Probable Oxygen-Rich Ejecta in CTB 1

Cited by in corpus (15)

• Gamma-rays from molecular clouds illuminated by accumulated diffusive protons. II: interacting supernova remnants
• Evolution of high-energy particle distribution in Supernova Remnants
• A Catalogue of Galactic Supernova Remnants in the far-infrared: revealing ejecta dust in pulsar wind nebulae
• Elemental Abundances in the Possible Type Ia Supernova Remnant G344.7-0.1
• The Metal-enriched Thermal Composite Supernova Remnant Kesteven 41 (G337.8-0.1) in a Molecular Environment
• Prediction of the diffuse neutrino flux from cosmic ray interactions near Supernova Remnants
• The X-ray Properties of Five Galactic Supernova Remnants Detected by the Spitzer GLIMPSE Survey
• Interstellar gas towards CTB 37A and the TeV gamma-ray source HESS J1714-385
• Thermal and Non-thermal X-Rays from the Galactic Supernova Remnant G348.5+0.1
• Evolution of High-Energy Particle Distribution in Mature Shell-Type Supernova Remnants
• Theoretical study of ionization profiles of molecular clouds near supernova remnants: Tracing the hadronic origin of GeV gamma radiation
• On the Origin of the Gamma-Ray Emission toward SNR CTB 37A with $Fermi$-LAT
• On the theory of mass loss in dwarf galaxies: I - basic equations and the case of wave/thermal driven winds
• High energy gamma-ray detection of supernova remnants in the Large Magellanic Cloud
• On the formation of over-ionized plasma in evolved supernova remnants