A far-ultraviolet–driven photoevaporation flow observed in a protoplanetary disk
Olivier Berné, E. Habart, E. Peeters, Ilane Schroetter, Amélie Canin, Ameek Sidhu, Ryan Chown, Émeric Bron, Thomas J. Haworth, Pamela Klaassen, Boris Trahin, Dries Van De Putte, Felipe Alarcón, Marion Zannese, A. Abergel, Edwin A. Bergin, J. Bernard‐Salas, Christiaan Boersma, J. Cami, S. Cuadrado, E. Dartois, D. Dicken, M. Elyajouri, A. Fuente, J. R. Goicoechea, Karl D. Gordon, Lina Issa, C. Joblin, Olga Kannavou, Baria Khan, Ozan Lacinbala, David Languignon, Romane Le Gal, Alexandros Maragkoudakis, Raphaël Meshaka, Yoko Okada, Takashi Onaka, Sofia Pasquini, Marc W. Pound, Massimo Robberto, M. Röllig, Bethany Schefter, Thiébaut Schirmer, Thomas Simmer, Benoît Tabone, A. G. G. M. Tielens, S. Vicente, M. G. Wolfire, PDRs4All Team†, Isabel Aleman, L. J. Allamandola, Rebecca Auchettl, G. A. Baratta, Clément Baruteau, Salma Bejaoui, Partha P. Bera, J. H. Black, F. Boulanger, Jordy Bouwman, Bernhard R. Brandl, Philippe Bréchignac, Sandra Brünken, Mridusmita Buragohain, Andrew M. Burkhardt, Alessandra Candian, S. Cazaux, J. Cernicharo, M. Chabot, Shubhadip Chakraborty, Jason Champion, Sean W. J. Colgan, Ilsa R. Cooke, A. Coutens, N. L. J. Cox, Karine Demyk, Jennifer L. Donovan, C. Engrand, Sacha Foschino, P. García-Lario, Lisseth Gavilan, Maryvonne Gérin, M. Godard, C. A. Gottlieb, P. Guillard, A. Gusdorf, Patrick Hartigan, Jinhua He, Eric Herbst, Liv Hornekær, C. Jäger, E. Janot-Pacheco, Michael J. Kaufman, F. Kemper, Sarah Kendrew, M. S. Kirsanova, Collin Knight, Sun Kwok, Á. Labiano, Thomas S. -Y. Lai, Timothy J. Lee
Abstract
Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiation produces photodissociation regions (PDRs) on the surfaces of protoplanetary disks around low-mass stars, which affects planet formation within the disks. We report James Webb Space Telescope and Atacama Large Millimeter Array observations of a FUV-irradiated protoplanetary disk in the Orion Nebula. Emission lines are detected from the PDR; modeling their kinematics and excitation allowed us to constrain the physical conditions within the gas. We quantified the mass-loss rate induced by the FUV irradiation and found that it is sufficient to remove gas from the disk in less than a million years. This is rapid enough to affect giant planet formation in the disk.