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Long Baseline Observations of the HD 100546 Protoplanetary Disk with ALMA

  • Authors: Sebastián Pérez, Simon Casassus, Antonio Hales, Sebastián Marino, Anthony Cheetham, Alice Zurlo, Lucas Cieza, Ruobing Dong, Felipe Alarcón, Pablo Benítez-Llambay, Ed Fomalont, and Henning Avenhaus

2020 The Astrophysical Journal Letters 889 L24.

  • Provider: AAS Journals

Caption: Figure 1.

ALMA observations of HD 100546 acquired in 2017 September. (a) Dust continuum emission map at 1.3 mm (I1.3 mm). (b) 12CO intensity map (zeroth moment, ICO). (c) Velocity map (first moment, v0) from 12CO(2–1) emission that shows perturbed non-Keplerian flows at the location of the continuum ring. (d) 12CO velocity dispersion map (second moment, σvel). Contours of I1.3 mm are plotted over moment maps with levels 0.15, 0.27, 0.40, 0.52, and 0.64 mJy beam−1. The lowest contour corresponds to 9σMEM. All panels display the same field of view.

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