A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk

• Published in: arXiv.org
• Main Authors: Habart, Emilie, Peeters, Els, Canin, Amélie, Sidhu, Ameek, Chown, Ryan, Bron, Emeric, Haworth, Thomas J, Klaassen, Pamela, Trahin, Boris, Dries Van De Putte, Alarcón, Felipe, Zannese, Marion, Abergel, Alain, Bernard-Salas, Jeronimo, Cuadrado, Sara, Dicken, Daniel, Elyajouri, Meriem, Fuente, Asunción, Gordon, Karl D, Joblin, Christine, Kannavou, Olga, Lacinbala, Ozan, Languignon, David, Maragkoudakis, Alexandros, Onaka, Takashi, Robberto, Massimo, Röllig, Markus, Schefter, Bethany, Schirmer, Thiébaut, Simmer, Thomas, Tabone, Benoit, Alexander G G M Tielens, Allamandola, Louis, Auchettl, Rebecca, Baratta, Giuseppe Antonio, Baruteau, Clément, Boulanger, Francois, Bouwman, Jordy, Brechignac, Philippe, Buragohain, Mridusmita, Burkhardt, Andrew, Candian, Alessandra, Cazaux, Stéphanie, Cernicharo, Jose, Chabot, Marin, Champion, Jason, Colgan, Sean W J, Coutens, Audrey, Demyk, Karine, Jennifer Donovan Meyer, Engrand, Cécile, García-Lario, Pedro, Gavilan, Lisseth, Godard, Marie, Gottlieb, Carl A, Guillard, Pierre, Hartigan, Patrick, Herbst, Eric, Jäger, Cornelia, Kemper, Francisca, Kendrew, Sarah, Kirsanova, Maria S, Knight, Collin, Sun, Kwok, Lefloch, Bertrand, Li, Aigen, Linz, Hendrik, Mackie, Cameron J, Madden, Suzanne C, Mascetti, Joëlle, McGuire, Brett A, Merino, Pablo, Micelotta, Elisabetta R, Morse, Jon A, Ohsawa, Ryou, Paladini, Roberta, Palumbo, Maria Elisabetta, Pendleton, Yvonne J, Petrignani, Annemieke, Puga, Elena, Rangwala, Naseem, Rapacioli, Mathias, Roman-Duval, Julia, Roueff, Evelyne, Salama, Farid, Sales, Dinalva A, Sandstrom, Karin, Sarre, Peter, Sciamma-O'Brien, Ella, Sellgren, Kris, Shannon, Matthew J, Shenoy, Sachindev S, Teyssier, David, Thomas, Richard D, Togi, Aditya, Verstraete, Laurent, Witt, Adolf N, Ysard, Nathalie, Zhang, Yong, Zhen, Junfeng
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 29.02.2024
• Subjects: Accretion disks; Far ultraviolet radiation; Irradiation; Kinematics; Low mass stars; Massive stars; Orion nebula; Planet formation; Protoplanetary disks; Star clusters; Ultraviolet astronomy
• ISSN: 2331-8422

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 photo-dissociation regions (PDRs) on the surfaces of protoplanetary disks around low-mass stars, impacting planet formation within the disks. We report JWST and Atacama Large Millimetere Array observations of a FUV-irradiated protoplanetary disk in the Orion Nebula. Emission lines are detected from the PDR; modelling their kinematics and excitation allows us to constrain the physical conditions within the gas. We quantify the mass-loss rate induced by the FUV irradiation, finding 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.