Evolution of the Chandra CCD Spectra of SNR 1987A: Probing the Reflected-Shock Picture

Abstract

We continue to explore the validity of the reflected shock structure (RSS) picture in SNR 1987A that was proposed in our previous analyses of the X-ray emission from this object. We used an improved version of our RSS model in a global analysis of 14 CCD spectra from the monitoring program with Chandra. In the framework of the RSS picture, we are able to match both the expansion velocity curve deduced from the analysis of the X-ray images and light curve. Using a simplified analysis, we also show that the X-rays and the non-thermal radio emission may originate from the same shock structure (the blast wave). We believe that using the RSS model in the analysis of grating data from the Chandra monitoring program of SNR 1987A that cover a long enough time interval, will allow us to build a more realistic physical picture and model of SNR 1987A.

14 pages, 1 Table, 8 figures, accepted for publication in MNRAS

References in corpus (18)

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• Multi-frequency Radio Measurements of SN 1987A over 22 Years
• Infrared and X-Ray Evidence for Circumstellar Grain Destruction by the Blast Wave of Supernova 1987A
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• Chandra HETG Spectra of SN 1987A at 20 years
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• Probing Elemental Abundances in SNR 1987A Using XMM-Newton
• Evolution of the Reverse Shock Emission from SNR 1987A
• High resolution 36 GHz imaging of the Supernova Remnant of SN1987A
• Coronal emission from the shocked circumstellar ring of SN 1987A
• Magnetic field in supernova remnant SN 1987A
• High Resolution X-ray Imaging of Supernova Remnant 1987A
• Chandra Observations of WR147 Reveal a Double X-ray Source

Cited by in corpus (21)

• Supernova remnants: the X-ray perspective
• X-ray illumination of the ejecta of Supernova 1987A
• Chandra Observes the End of an Era SN 1987A
• Abundances and density structure of the inner circumstellar ring around SN 1987A
• Spectral and morphological analysis of the remnant of Supernova 1987A with ALMA & ATCA
• Chandra observations of SN 1987A: the soft X-ray light curve revisited
• Late Spectral Evolution of the Ejecta and Reverse Shock in SN1987A
• Multi-dimensional simulations of the expanding supernova remnant of SN 1987A
• The outer rings of SN1987A
• Highlights and Discoveries from the Chandra X-ray Observatory
• Thermal Emission and Radioactive Lines, but No Pulsar, in the Broadband X-Ray Spectrum of Supernova 1987A
• Expected gamma-ray emission of supernova remnant SN 1987A
• The remnant of Supernova 1987A resolved at 3 mm wavelength
• A New Evolutionary Phase of Supernova Remnant 1987A
• Spectral Evolution of the X-Ray Remnant of SN 1987A: A High-Resolution $Chandra$ HETG Study
• The Post-impact Evolution of the X-ray Emitting Gas in SNR 1987A Viewed by XMM-Newton
• SN 1987A : Tracing the flux decline and spectral evolution through a comparison of SRG/eROSITA and XMM-Newton observations
• Sensitivity of the Cherenkov Telescope Array to TeV photon emission from the Large Magellanic Cloud
• Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
• The Exceptional X-ray Evolution of SN1996cr in High Resolution
• Unusual X-ray Oxygen Line Ratios of SN 1987A Arising From the Absorption of Galactic Hot Interstellar Medium