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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 6.

SPHERE SAM observations of HD 100546. The IRDIS (a) and IFS (b) images were produced with the MIRA package, applied to the closure phases and visibilities, with a hyperbolic regularization term. The images show extended scattered light and an empty gap free of stellar companions. The dashed contour shows the 9σMEM level from the I1.3 mm continuum image. (c) IRDIS 5σ contrast curve for SAM observations in K1K2 band. A contrast of ∼7 mag is achieved between 50 and 200 mas.

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