X-ray emission from the mixed-morphology supernova remnant HB 9
arXiv:2004.07465 · doi:10.1093/pasj/psaa042
Abstract
We present the results of a spectral analysis of the central region of the mixed-morphology supernova remnant HB 9. A prior Ginga observation of this source detected a hard X-ray component above 4 keV and the origin of this particular X-ray component is still unknown. Our results demonstrate that the extracted X-ray spectra are best represented by a model consisting of a collisional ionization equilibrium plasma with a temperature of ~0.1-0.2 keV (interstellar matter component) and an ionizing plasma with a temperature of ~0.6-0.7 keV and an ionization timescale of >1 x 10^{11} cm^{-3} s (ejecta component). No significant X-ray emission was found in the central region above 4 keV. The recombining plasma model reported by a previous work does not explain our spectra.
arXiv commentAccepted for publication in PASJ
References in corpus (22)
- On the Absorption of X-rays in the Interstellar Medium
- Monte-Carlo Simulator and Ancillary Response Generator of Suzaku XRT/XIS System for Spatially Extended Source Analysis
- Reproducibility of Non-X-ray Background for the X-ray Imaging Spectrometer aboard Suzaku
- Study of the X-Ray Background Spectrum and its Large-Scale Fluctuation with ASCA
- A Census of High-Energy Observations of Galactic Supernova Remnants
- The complete set of ASCA X-ray observations of non-magnetic cataclysmic variables
- Suzaku Discovery of the Strong Radiative Recombination Continuum of Iron from the Supernova Remnant W49B
- New CTI Correction Method for the Spaced-Row Charge Injection of the Suzaku X-Ray Imaging Spectrometer
- Discovery of Strong Radiative Recombination Continua from The Supernova Remnant IC 443 with Suzaku
- The K-shell Line Distribution of Heavy Elements along the Galactic Plane Observed with Suzaku
- X-Ray Observations of the Supernova Remnant W28 with Suzaku --- I. Spectral Study of the Recombining Plasma
- Performance of the Charge Injection Capability of Suzaku XIS
- Radio Spectrum and Distance of the SNR HB9
- Discovery of the recombining plasma in the south of the Galactic center; a relic of the past Galactic center activity?
- Quiescent state and outburst evolution of SGR 0501+4516
- Scale heights and equivalent widths of the iron K-shell lines in the Galactic diffuse X-ray emission
- Origin of the Galactic Diffuse X-ray Emission: Iron K-shell Line Diagnostics
- Evidence for Recombining Plasma in the Supernova Remnant G346.6-0.2
- OI Fluorescent Line Contamination in Soft X-Ray Diffuse Background Obtained with Suzaku/XIS
- Fermi LAT Observation of Supernova Remnant HB9
- Discovery of recombining plasma inside the extended gamma-ray supernova remnant HB9
- New Scenario of plasma evolution in IC 443