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Molecules with ALMA at Planet-forming Scales (MAPS). VIII. CO Gap in AS 209—Gas Depletion or Chemical Processing?

  • Authors: Felipe Alarcón, Arthur D. Bosman, Edwin A. Bergin, Ke Zhang, Richard Teague, Jaehan Bae, Yuri Aikawa, Sean M. Andrews, Alice S. Booth, Jenny K. Calahan, Gianni Cataldi, Ian Czekala, Jane Huang, John D. Ilee, Charles J. Law, Romane Le Gal, Yao Liu, Feng Long, Ryan A. Loomis, François Ménard, Karin I. Öberg, Kamber R. Schwarz, Merel L. R. van 't Hoff, Catherine Walsh, David J. Wilner

Felipe Alarcón et al 2021 The Astrophysical Journal Supplement Series 257 .

  • Provider: AAS Journals

Caption: Figure 2.

CO depletion used in Model A to fit the CO intensity profile. This depletion is used to compare the case with CO chemical processing (Model A) and the case with CO used as a tracer of H2 surface density (Model B).

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