Chandra Observes the End of an Era SN 1987A

Abstract

Updated imaging and photometric results from Chandra observations of SN 1987A, covering the last 16 years, are presented. We find that the 0.5-2 keV light curve has remained constant at ~8x10^-12 erg s^-1 cm^-2 since 9500 days, with the 3-8 keV light curve continuing to increase until at least 10000 days. The expansion rate of the ring is found to be energy dependent, such that after day 6000 the ring expands faster in the 2-10 keV band than it does at energies <2 keV. Images show a reversal of the east-west asymmetry between 7000 and 8000 days after the explosion. The latest images suggest the southeastern side of the equatorial ring is beginning to fade. Consistent with the latest optical and infrared results, our Chandra analysis indicates the blast wave is now leaving the dense equatorial ring, which marks the beginning of a major change in the evolutionary phase of the supernova remnant 1987A.

References in corpus (24)

• The Triple-Ring Nebula around SN1987A: Fingerprint of a binary merger
• The Line Emission from the Circumstellar Gas Around SN 1987A
• The X-ray Remnant of SN1987A
• Supernova 1987A: a Template to Link Supernovae to their Remnants
• Multiple ring nebulae around blue supergiants
• Monitoring the Evolution of the X-ray Remnant of SN 1987A
• Five Years of Mid-Infrared Evolution of the Remnant of SN 1987A: The Encounter Between the Blast Wave and the Dusty Equatorial Ring
• The Destruction of the Circumstellar Ring of SN 1987A
• Spectral and morphological analysis of the remnant of Supernova 1987A with ALMA & ATCA
• A Chandra View of The Morphological And Spectral Evolution of Supernova Remnant 1987A
• Evolution and Geometry of Hot Spots in Supernova Remnant 1987A
• High-Resolution X-ray Spectroscopy of SNR 1987A: Chandra LETG and HETG Observations in 2007
• Chandra observations of SN 1987A: the soft X-ray light curve revisited
• Supernova Remnant 1987A: Opening the Future by Reaching the Past
• High-resolution radio observations of SNR 1987A at high frequencies
• Evolutionary Status of SNR 1987A at the Age of Eighteen
• X-ray Evolution of SNR 1987A: The Radial Expansion
• Infrared Continuum and Line Evolution of the Equatorial Ring around SN 1987A
• XMM-Newton observations of SN1987A
• Evolution of the Radio Remnant of Supernova 1987A: Morphological Changes from Day 7000
• Evolution and Hydrodynamics of the Very-Broad X-ray Line Emission in SN 1987A
• Evolution of the Chandra CCD Spectra of SNR 1987A: Probing the Reflected-Shock Picture
• XMM-Newton observations of SNR 1987A. II. The still increasing X-ray light curve and the properties of Fe K lines
• A New Evolutionary Phase of Supernova Remnant 1987A

Cited by in corpus (43)

• The eROSITA X-ray telescope on SRG
• Thermal and non-thermal emission from circumstellar interaction
• High angular resolution ALMA images of dust and molecules in the SN 1987A ejecta
• The fully developed remnant of a neutrino-driven supernova: Evolution of ejecta structure and asymmetries in SNR Cassiopeia A
• Hydrodynamic simulations unravel the progenitor-supernova-remnant connection in SN 1987A
• Three-dimensional distribution of ejecta in Supernova 1987A at 10 000 days
• 3D MHD modeling of the expanding remnant of SN 1987A. Role of magnetic field and non-thermal radio emission
• Collisionless shock heating of heavy ions in SN 1987A
• SOFIA mid-infrared observations of Supernova 1987A in 2016 --- forward shocks and possible dust re-formation in the post-shocked region?
• The 30-Year Search for the Compact Object in SN 1987A
• The role of jets in exploding supernovae and in shaping their remnants
• The matter beyond the ring: the recent evolution of SN 1987A observed by the Hubble Space Telescope
• JWST NIRSpec observations of Supernova 1987A -- from the inner ejecta to the reverse shock
• The Re-Acceleration of the Shock Wave in the Radio Remnant of SN 1987A
• Systematic Study of Acceleration Efficiency in Young Supernova Remnants with Nonthermal X-ray Observations
• SNaX - A Database of Supernova X-ray Lightcurves
• Thermal Emission and Radioactive Lines, but No Pulsar, in the Broadband X-Ray Spectrum of Supernova 1987A
• Detailed X-Ray Mapping of the Shocked Ejecta and Circumstellar Medium in the Galactic Core-Collapse Supernova Remnant G292.0+1.8
• Quantitative Age Estimation of Supernova Remnants and Associated Pulsars
• Final Spitzer IRAC Observations of the Rise and Fall of SN 1987A
• Additional evidence for a pulsar wind nebula in the heart of SN 1987A from multi-epoch X-ray data and MHD modeling
• Spectral Evolution of the X-Ray Remnant of SN 1987A: A High-Resolution $Chandra$ HETG Study
• Can a bright and energetic X-ray pulsar be hiding amid the debris of SN 1987A?
• 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
• X-Ray and Gamma-Ray Emission From Core-collapse Supernovae: Comparison of Three-dimensional Neutrino-driven Explosions With SN 1987A
• Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
• X-Ray Luminous Supernovae: Threats to Terrestrial Biospheres
• High-cadence Dispersed Spectral Analysis of Supernova Remnant 1987A
• A 3D view of molecular hydrogen in Supernova 1987A
• The Exceptional X-ray Evolution of SN1996cr in High Resolution
• The morphology of the ejecta of SN 1987A at 31 years from 1150 to 10000 Å
• Mid-infrared imaging of Supernova 1987A
• Tracing the ejecta structure of SN 1987A: Insights and diagnostics from 3D MHD simulations
• An Exploration of X-ray Supernova Remnants in the Milky Way and Nearby Galaxies
• Investigating Time Evolution of Thermal Emission from the Putative Neutron Star in SN 1987A for 50+ Years
• Polarized radio emission unveils the structure of the pre-supernova circumstellar magnetic field and the radio emission in SN1987A
• Near-infrared evolution of the equatorial ring of SN 1987A
• Possible post-kick jets in SN 1987A
• Unusual X-ray Oxygen Line Ratios of SN 1987A Arising From the Absorption of Galactic Hot Interstellar Medium
• A Possible Gamma-Ray Enhancement Event in Tycho's Supernova Remnant
• Measuring the initial mass of 44Ti in SN 1987A through the 44Sc emission line
• Bridging the gap between supernovae and their remnants through multi-dimensional hydrodynamic modeling