THE DESTRUCTION OF THE CIRCUMSTELLAR RING OF SN 1987A

@article{Fransson2015THEDO,
  title={THE DESTRUCTION OF THE CIRCUMSTELLAR RING OF SN 1987A},
  author={Claes Fransson and Josefin Larsson and K. Migotto and Dominic W. Pesce and Peter M. Challis and Roger A. Chevalier and Kevin France and Robert P. Kirshner and Bruno Leibundgut and Peter Lundqvist and Richard McCray and Jason Spyromilio and Francesco Taddia and Anders Jerkstrand and Seppo Mattila and Nathan Smith and Jesper Sollerman and J. Craig Wheeler and Arlin P. S. Crotts and Peter M. Garnavich and Kevin Heng and Stephen S. Lawrence and Nino Panagia and Chun Shing Jason Pun and George Sonneborn and Ben E. K. Sugerman},
  journal={The Astrophysical Journal Letters},
  year={2015},
  volume={806}
}
We present imaging and spectroscopic observations with Hubble Space Telescope and Very Large Telescope of the ring of SN 1987A from 1994 to 2014. After an almost exponential increase of the shocked emission from the hotspots up to day ∼8000 (∼2009), both this and the unshocked emission are now fading. From the radial positions of the hotspots we see an acceleration of these up to 500–1000 km s−1, consistent with the highest spectroscopic shock velocities from the radiative shocks. In the most… 

The Matter Beyond the Ring: The Recent Evolution of SN 1987A Observed by the Hubble Space Telescope

The nearby SN 1987A offers a spatially resolved view of the evolution of a young supernova (SN) remnant. Here we present recent Hubble Space Telescope imaging observations of SN 1987A, which we use

The Reacceleration of the Shock Wave in the Radio Remnant of SN 1987A

We report on updated radio imaging observations of the radio remnant of SN 1987A at 9 GHz, taken with the Australia Telescope Compact Array (ATCA), covering a 25 yr period (1992–2017). We use Fourier

INFRARED CONTINUUM AND LINE EVOLUTION OF THE EQUATORIAL RING AROUND SN 1987A

Spitzer observations of SN 1987A have now spanned more than a decade. Since day ∼4000, mid-infrared (mid-IR) emission has been dominated by that from shock-heated dust in the equatorial ring (ER).

CHANDRA OBSERVES THE END OF AN ERA IN SN 1987A

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 ∼8 × 10−12

High-Resolution Observations of Dust in SN 1987A

Abstract The dust produced by supernovae is an important topic for understanding supernova physics and the chemical evolution of galaxies. Recent ALMA observations of SN 1987A have allowed us to peer

THREE-DIMENSIONAL DISTRIBUTION OF EJECTA IN SUPERNOVA 1987A AT 10,000 DAYS

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

A Three-dimensional View of Molecular Hydrogen in SN 1987A

SN 1987A is the only young supernova (SN) in which H2 has been detected in the ejecta. The properties of H2 are important for understanding the explosion and the ejecta chemistry. Here we present new

Final Spitzer IRAC Observations of the Rise and Fall of SN 1987A

Spitzer's final Infrared Array Camera observations of SN 1987A show the 3.6 and 4.5 μm emission from the equatorial ring (ER) continues a period of steady decline. Deconvolution of the images reveals

Thermal Emission and Radioactive Lines, but No Pulsar, in the Broadband X-Ray Spectrum of Supernova 1987A

Supernova 1987A offers a unique opportunity to study an evolving supernova in unprecedented detail over several decades. The X-ray emission is dominated by interactions between the ejecta and the

The Post-impact Evolution of the X-Ray-emitting Gas in SNR 1987A as Viewed by XMM-Newton

Since 1996 the blast wave driven by SN 1987A has been interacting with the dense circumstellar material, which provides us with a unique opportunity to study the early evolution of a newborn

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We present optical spectroscopic data of the inner circumstellar ring around supernova (SN) 1987A from the Anglo-Australian Telescope and the Very Large Telescope (VLT) between ∼1400 and ∼5000 days

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THE optical fading of supernova 1987A has revealed a parsec-sized nebula glowing in narrow atomic lines. The emission is presumed to come from circumstellar material, shed during the life of the

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