Berné Olivier, Habart Emilie, Peeters Els, Schroetter Ilane, Canin Amélie, Sidhu Ameek, Chown Ryan, Bron Emeric, Haworth Thomas J, Klaassen Pamela, Trahin Boris, Van De Putte Dries, Alarcón Felipe, Zannese Marion, Abergel Alain, Bergin Edwin A, Bernard-Salas Jeronimo, Boersma Christiaan, Cami Jan, Cuadrado Sara, Dartois Emmanuel, Dicken Daniel, Elyajouri Meriem, Fuente Asunción, Goicoechea Javier R, Gordon Karl D, Issa Lina, Joblin Christine, Kannavou Olga, Khan Baria, Lacinbala Ozan, Languignon David, Le Gal Romane, Maragkoudakis Alexandros, Meshaka Raphael, Okada Yoko, Onaka Takashi, Pasquini Sofia, Pound Marc W, Robberto Massimo, Röllig Markus, Schefter Bethany, Schirmer Thiébaut, Simmer Thomas, Tabone Benoit, Tielens Alexander G G M, Vicente Sílvia, Wolfire Mark G, Aleman Isabel, Allamandola Louis, Auchettl Rebecca, Baratta Giuseppe Antonio, Baruteau Clément, Bejaoui Salma, Bera Partha P, Black John H, Boulanger Francois, Bouwman Jordy, Brandl Bernhard, Brechignac Philippe, Brünken Sandra, Buragohain Mridusmita, Burkhardt Andrew, Candian Alessandra, Cazaux Stéphanie, Cernicharo Jose, Chabot Marin, Chakraborty Shubhadip, Champion Jason, Colgan Sean W J, Cooke Ilsa R, Coutens Audrey, Cox Nick L J, Demyk Karine, Meyer Jennifer Donovan, Engrand Cécile, Foschino Sacha, García-Lario Pedro, Gavilan Lisseth, Gerin Maryvonne, Godard Marie, Gottlieb Carl A, Guillard Pierre, Gusdorf Antoine, Hartigan Patrick, He Jinhua, Herbst Eric, Hornekaer Liv, Jäger Cornelia, Janot-Pacheco Eduardo, Kaufman Michael, Kemper Francisca, Kendrew Sarah, Kirsanova Maria S, Knight Collin, Kwok Sun, Labiano Álvaro, Lai Thomas S-Y, Lee Timothy J, Lefloch Bertrand, Le Petit Franck, Li Aigen, Linz Hendrik, Mackie Cameron J, Madden Suzanne C, Mascetti Joëlle, McGuire Brett A, Merino Pablo, Micelotta Elisabetta R, Morse Jon A, Mulas Giacomo, Neelamkodan Naslim, Ohsawa Ryou, Paladini Roberta, Palumbo Maria Elisabetta, Pathak Amit, Pendleton Yvonne J, Petrignani Annemieke, Pino Thomas, Puga Elena, Rangwala Naseem, Rapacioli Mathias, Ricca Alessandra, Roman-Duval Julia, Roueff Evelyne, Rouillé Gaël, Salama Farid, Sales Dinalva A, Sandstrom Karin, Sarre Peter, Sciamma-O'Brien Ella, Sellgren Kris, Shannon Matthew J, Simonnin Adrien, Shenoy Sachindev S, Teyssier David, Thomas Richard D, Togi Aditya, Verstraete Laurent, Witt Adolf N, Wootten Alwyn, Ysard Nathalie, Zettergren Henning, Zhang Yong, Zhang Ziwei E, Zhen Junfeng
Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France.
Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France.
Science. 2024 Mar;383(6686):988-992. doi: 10.1126/science.adh2861. Epub 2024 Feb 29.
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.
大多数低质量恒星形成于恒星团中，这些恒星团还包含大质量恒星，而大质量恒星是远紫外线（FUV）辐射的来源。理论模型预测，这种FUV辐射会在低质量恒星周围的原行星盘表面产生光解离区域（PDR），这会影响盘内行星的形成。我们报告了詹姆斯·韦布空间望远镜和阿塔卡马大型毫米波阵列对猎户座星云内一个受FUV辐射的原行星盘的观测结果。从PDR中检测到了发射线；对它们的运动学和激发进行建模使我们能够限制气体中的物理条件。我们量化了FUV辐射引起的质量损失率，发现它足以在不到一百万年的时间内从盘中移除气体。这足够快，足以影响盘中巨行星的形成。
