High Angular Resolution ALMA Images of Dust and Molecules in the SN 1987A Ejecta

@article{Cigan2019HighAR,
  title={High Angular Resolution ALMA Images of Dust and Molecules in the SN 1987A Ejecta},
  author={Phil J. Cigan and Mikako Matsuura and Haley L. Gomez and R{\'e}my Indebetouw and F. J. Abell{\'a}n and Michael Gabler and Anita M. S. Richards and Dennis Alp and Timothy A. Davis and Hans-Thomas Janka and Jason Spyromilio and Michael J. Barlow and David N. Burrows and Eli Dwek and Claes Fransson and Bryan M. Gaensler and Josefin Larsson and Patrice Bouchet and Peter Lundqvist and J. M. Marcaide and C-Y. Ng and Sangwook Park and Patrick F. Roche and Jacco Th. van Loon and J. Craig Wheeler and Giovanna Zanardo},
  journal={The Astrophysical Journal},
  year={2019},
  volume={886}
}
We present high angular resolution (∼80 mas) ALMA continuum images of the SN 1987A system, together with CO J = 2 1, J = 6 5, and SiO J = 5 4 to J = 7 6 images, which clearly resolve the ejecta (dust continuum and molecules) and ring (synchrotron continuum) components. Dust in the ejecta is asymmetric and clumpy, and overall the dust fills the spatial void seen in Hα images, filling that region with material from heavier elements. The dust clumps generally fill the space where CO J = 6 5 is… 

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