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Molecules with ALMA at Planet-forming Scales (MAPS): A Circumplanetary Disk Candidate in Molecular-line Emission in the AS 209 Disk

  • Authors: Jaehan Bae, Richard Teague, Sean M. Andrews, Myriam Benisty, Stefano Facchini, Maria Galloway-Sprietsma, Ryan A. Loomis, Yuri Aikawa, Felipe Alarcón, Edwin Bergin, Jennifer B. Bergner, Alice S. Booth, Gianni Cataldi, L. Ilsedore Cleeves, Ian Czekala, Viviana V. Guzmán, Jane Huang, John D. Ilee, Nicolas T. Kurtovic, Charles J. Law, Romane Le Gal, Yao Liu, Feng Long, François Ménard, Karin I. Öberg, Laura M. Pérez, Chunhua Qi, Kamber R. Schwarz, Anibal Sierra, Catherine Walsh, David J. Wilner, Ke Zhang

Jaehan Bae et al 2022 The Astrophysical Journal Letters 934 .

  • Provider: AAS Journals

Caption: Figure 2.

Selected 13CO J = 2−1 channel maps. A point source is seen at a projected distance of 1.″4 with a position angle of 161° (east from north). The dashed ellipses show the projected circular orbit of an object with an orbital semimajor axis of 206 au. Near the center of the AS 209 disk, the inner disk appears as a point source because of an annular gap around ≃0.″5 (Law et al. 2021a; see also Figure 3). The synthesized beam is presented in the lower-left corner of each panel. The color map starts at 5σ ≃ 2.3 mJy beam−1.

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