Three-dimensional distribution of ejecta in Supernova 1987A at 10 000 days

Abstract

Due to its proximity, SN 1987A offers a unique opportunity to directly observe the geometry of a stellar explosion as it unfolds. Here we present spectral and imaging observations of SN 1987A obtained ~10,000 days after the explosion with HST/STIS and VLT/SINFONI at optical and near-infrared wavelengths. These observations allow us to produce the most detailed 3D map of H-alpha to date, the first 3D maps for [Ca II] λλ7292, 7324, [O I] λλ6300, 6364 and Mg II λλ9218, 9244, as well as new maps for [Si I]+[Fe II] 1.644 μm and He I 2.058 μm. A comparison with previous observations shows that the [Si I]+[Fe II] flux and morphology have not changed significantly during the past ten years, providing evidence that it is powered by 44Ti. The time-evolution of H-alpha shows that it is predominantly powered by X-rays from the ring, in agreement with previous findings. All lines that have sufficient signal show a similar large-scale 3D structure, with a north-south asymmetry that resembles a broken dipole. This structure correlates with early observations of asymmetries, showing that there is a global asymmetry that extends from the inner core to the outer envelope. On smaller scales, the two brightest lines, H-alpha and [Si I]+[Fe II] 1.644 μm, show substructures at the level of ~ 200 - 1000 km/s and clear differences in their 3D geometries. We discuss these results in the context of explosion models and the properties of dust in the ejecta.

arXiv commentAccepted for publication in ApJ

References in corpus (60)

• Progenitors of core-collapse supernovae
• Core-Collapse Supernovae from 9 to 120 Solar Masses Based on Neutrino-powered Explosions
• Spectral Irradiance Calibration in the Infrared. XIV: the Absolute Calibration of 2MASS
• Spectropolarimetry of Supernovae
• SINFONI - Integral Field Spectroscopy at 50 milli-arcsecond resolution with the ESO VLT
• Herschel Detects a Massive Dust Reservoir in Supernova 1987A
• The Cassiopeia A Supernova was of Type IIB
• Non-spherical Core Collapse Supernovae I. Neutrino-Driven Convection, Rayleigh-Taylor Instabilities, and the Formation and Propagation of Metal Clumps
• Three-dimensional neutrino-driven supernovae: Neutron star kicks, spins, and asymmetric ejection of nucleosynthesis products
• Asymmetries in core-collapse supernovae from maps of radioactive ${}^{44}$Ti in CassiopeiaA
• Three-Dimensional Simulations of Core-Collapse Supernovae: From Shock Revival to Shock Breakout
• A Million-Second Chandra View of Cassiopeia A
• A method to remove residual OH emission from near infrared spectra
• Three-Dimensional Simulations of Mixing Instabilities in Supernova Explosions
• Dust Production and Particle Acceleration in Supernova 1987A Revealed with ALMA
• A stubbornly large mass of cold dust in the ejecta of Supernova 1987A
• Nebular emission-line profiles of Type Ib/c Supernovae - probing the ejecta asphericity
• The 44Ti-powered spectrum of SN 1987A
• Condensation of dust in the ejecta of type II-P supernovae
• The Triple-Ring Nebula around SN1987A: Fingerprint of a binary merger
• The timing and location of dust formation in the remnant of SN 1987A
• A Spitzer Space Telescope Study of SN 2003gd: Still No Direct Evidence that Core-Collapse Supernovae are Major Dust Factories
• Double-peaked Oxygen Lines Are not Rare in Nebular Spectra of Core-Collapse Supernovae
• Late Spectral Evolution of SN 1987A: II. Line Emission
• Doublets and Double Peaks: Late-Time [O I] 6300, 6364 Line Profiles of Stripped-Envelope, Core-Collapse Supernovae
• Late-Time Optical Emission From Core-Collapse Supernovae
• The Bubble-like Interior of the Core-Collapse Supernova Remnant Cassiopeia A
• Modelling supernova line profile asymmetries to determine ejecta dust masses: SN 1987A from days 714 to 3604
• SN 2009E: a faint clone of SN 1987A
• X-ray illumination of the ejecta of Supernova 1987A
• Chandra Observes the End of an Era SN 1987A
• The 3-D Structure of SN 1987A's inner Ejecta
• The Destruction of the Circumstellar Ring of SN 1987A
• The Early Asymmetries of Supernova 2008D / XRF 080109
• SN 1993J VLBI (III): The Evolution of the Radio Shell
• The Evolution of Dust Mass in the Ejecta of SN1987A
• The Three-Dimensional Structure of Interior Ejecta in Cassiopeia A at High Spectral Resolution
• Radioactivities and nucleosynthesis in SN 1987A
• The morphology of the ejecta in Supernova 1987A: a study over time and wavelength
• Chandra observations of SN 1987A: the soft X-ray light curve revisited
• Time evolution of the line emission from the inner circumstellar ring of SN 1987A and its hot spots
• Late Spectral Evolution of the Ejecta and Reverse Shock in SN1987A
• A Case Study of Small Scale Structure Formation in 3D Supernova Simulations
• HST-COS Observations of Hydrogen, Helium, Carbon and Nitrogen Emission from the SN 1987A Reverse Shock
• Carbon Monoxide in the Cold Debris of Supernova 1987A
• Infrared Continuum and Line Evolution of the Equatorial Ring around SN 1987A
• Evolution of the Radio Remnant of Supernova 1987A: Morphological Changes from Day 7000
• Observing Supernova 1987A with the Refurbished Hubble Space Telescope
• The outer rings of SN1987A
• Asymmetry in the Outburst of SN 1987A Detected Using Light Echo Spectroscopy
• A Second Bright Source Detected Near SN1987A
• Discovery of molecular hydrogen in SN 1987A
• Non-spherical core collapse supernovae III. Evolution towards homology and dependence on the numerical resolution
• Radio emission of SN1993J: the complete picture. I. Re-analysis of all the available VLBI data
• Spectropolarimetry of the Type Ib Supernova iPTF 13bvn: Revealing the complex explosion geometry of a stripped-envelope core-collapse supernova
• Evolution of the Reverse Shock Emission from SNR 1987A
• Evolving into a remnant: optical observations of SN 1978K at three decades
• Properties of the three-dimensional structure in the central region of the supernova remnant SNR 0540-69.3
• The radio evolution of supernova SN2008iz in M82
• Mapping High-velocity H-alpha and Lyman-alpha Emission from Supernova 1987A

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• The matter beyond the ring: the recent evolution of SN 1987A observed by the Hubble Space Telescope
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