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={P. Cigan and M. Matsuura and H. Gomez and R. Indebetouw and Fran Abell'an and M. Gabler and A. Richards and D. Alp and T. Davis and H. Janka and J. Spyromilio and M. Barlow and D. Burrows and E. Dwek and C. Fransson and B. Gaensler and J. Larsson and P. Bouchet and P. Lundqvist and J. Marcaide and C. Ng and S. Park and P. Roche and J. Loon and J. Wheeler and G. Zanardo},
  journal={The Astrophysical Journal},
  year={2019},
  volume={886},
  pages={51}
}
We present high angular resolution (~80 mas) ALMA continuum images of the SN 1987A system, together with CO J = 2 $\to $ 1, J = 6 $\to $ 5, and SiO J = 5 $\to $ 4 to J = 7 $\to $ 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… Expand
18 Citations
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