| PDRs4All IV. An embarrassment of riches: Aromatic infrared bands in the Orion Bar | |
Chown, Ryan1,2; Sidhu, Ameek1,2; Peeters, Els1,2,3; Tielens, Alexander G. G. M.4,5; Cami, Jan1,2,3; Berné, Olivier6; Habart, Emilie7; Alarcón, Felipe8; Canin, Amélie6; Schroetter, Ilane6; Trahin, Boris7; Putte, Dries Van De9; Abergel, Alain7; Bergin, Edwin A.8; Bernard, Jeronimo10,11; Boersma, Christiaan12; Bron, Emeric13; Cuadrado, Sara14; Dartois, Emmanuel15; Dicken, Daniel16; El, Meriem7; Fuente, Asunción17; Goicoechea, Javier R.14; Gordon, Karl D.9,18; Issa, Lina6; Joblin, Christine4; Kannavou, Olga7; Khan, Baria1; Lacinbala, Ozan19; Languignon, David13; Gal, Romane Le20,21; Maragkoudakis, Alexandros12; Meshaka, Raphael7,13; Okada, Yoko22; Onaka, Takashi23,24; Pasquini, Sofia1; Pound, Marc W.5; Robberto, Massimo9,25; Röllig, Markus26,27; Schefter, Bethany1,2; Schirmer, Thiébaut7,28; Vicente, Sílvia29; Wolfire, Mark G.5; Zannese, Marion7; Aleman, Isabel30; Allamandola, Louis12,31; Auchettl, Rebecca32; Baratta, Giuseppe Antonio33; Bejaoui, Salma12; Bera, Partha P.12,29; Black, John H.28; Boulanger, François34; Bouwman, Jordy35,36,37; Brandl, Bernhard4,38; Brechignac, Philippe15; Brünken, Sandra39; Buragohain, Mridusmita40; Burkhardt, Andrew41; Candian, Alessandra42; Cazaux, Stéphanie43; Cernicharo, Jose14; Chabot, Marin44; Chakraborty, Shubhadip45,46; Champion, Jason6; Colgan, Sean W. J.12; Cooke, Ilsa R.47; Coutens, Audrey6; Cox, Nick L. J.10,11; Demyk, Karine6; Meyer, Jennifer Donovan48; Foschino, Sacha6; García, Pedro49; Gavilan, Lisseth12; Gerin, Maryvonne50; Gottlieb, Carl A.51; Guillard, Pierre52,53; Gusdorf, Antoine34,50; Hartigan, Patrick54; He JH(何金华)55,56 ; Herbst, Eric57; Hornekaer, Liv58; Jäger, Cornelia59; Janot, Eduardo60; Kaufman, Michael61; Kemper, Francisca62,63,64; Kendrew, Sarah65; Kirsanova, Maria S.66; Klaassen, Pamela16; Kwok, Sun67; Labiano, Álvaro68; Lai, Thomas S.-Y.69; Lee, Timothy J.(12,★★); Lefloch, Bertrand20; Petit, Franck Le13; Li, Aigen70; Linz, Hendrik71; Mackie, Cameron J.72,73; Madden, Suzanne C.74; Mascetti, Joëlle75; McGuire, Brett A.48,76; Merino, Pablo77; Micelotta, Elisabetta R.78; Misselt, Karl79; Morse, Jon A.80; Mulas, Giacomo6,33; Neelamkodan, Naslim81; Ohsawa, Ryou82; Omont, Alain52; Paladini, Roberta83; Palumbo, Maria Elisabetta33; Pathak, Amit84; Pendleton, Yvonne J.85; Petrignani, Annemieke86; Pino, Thomas15; Puga, Elena65; Rangwala, Naseem12; Rapacioli, Mathias87; Ricca, Alessandra3,12; Roman, Julia9; Roser, Joseph3,12; Roueff, Evelyne13; Rouillé, Gaël59; Salama, Farid12; Sales, Dinalva A.88; Sandstrom, Karin89; Sarre, Peter90; Sciamma, Ella12; Sellgren, Kris91; Shenoy, Sachindev S.92; Teyssier, David68; Thomas, Richard D.93; Togi, Aditya71; Verstraete, Laurent7; Witt, Adolf N.94; Wootten, Alwyn48; Zettergren, Henning93; Zhang, Yong95; Zhang, Ziwei E.96; Zhen, Junfeng97
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| 发表期刊 | ASTRONOMY & ASTROPHYSICS
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| 2024-05-14 | |
| 卷号 | 685 |
| DOI | 10.1051/0004-6361/202346662 |
| 产权排序 | 第55完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | astrochemistry infrared: ISM ISM: molecules ISM: individual objects: Orion Bar photon-dominated region (PDR) techniques: spectroscopic |
| 摘要 | Context. Mid-infrared observations of photodissociation regions (PDRs) are dominated by strong emission features called aromatic infrared bands (AIBs). The most prominent AIBs are found at 3.3, 6.2, 7.7, 8.6, and 11.2 mu m. The most sensitive, highest-resolution infrared spectral imaging data ever taken of the prototypical PDR, the Orion Bar, have been captured by JWST. These high-quality data allow for an unprecedentedly detailed view of AIBs. Aims. We provide an inventory of the AIBs found in the Orion Bar, along with mid-IR template spectra from five distinct regions in the Bar: the molecular PDR (i.e. the three H-2 dissociation fronts), the atomic PDR, and the H II region. Methods. We used JWST NIRSpec IFU and MIRI MRS observations of the Orion Bar from the JWST Early Release Science Program, PDRs4All (ID: 1288). We extracted five template spectra to represent the morphology and environment of the Orion Bar PDR. We investigated and characterised the AIBs in these template spectra. We describe the variations among them here. Results. The superb sensitivity and the spectral and spatial resolution of these JWST observations reveal many details of the AIB emission and enable an improved characterization of their detailed profile shapes and sub-components. The Orion Bar spectra are dominated by the well-known AIBs at 3.3, 6.2, 7.7, 8.6, 11.2, and 12.7 mu m with well-defined profiles. In addition, the spectra display a wealth of weaker features and sub-components. The widths of many AIBs show clear and systematic variations, being narrowest in the atomic PDR template, but showing a clear broadening in the H II region template while the broadest bands are found in the three dissociation front templates. In addition, the relative strengths of AIB (sub-)components vary among the template spectra as well. All AIB profiles are characteristic of class A sources as designated by Peeters (2022, A&A, 390, 1089), except for the 11.2 mu m AIB profile deep in the molecular zone, which belongs to class B-11.2. Furthermore, the observations show that the sub-components that contribute to the 5.75, 7.7, and 11.2 mu m AIBs become much weaker in the PDR surface layers. We attribute this to the presence of small, more labile carriers in the deeper PDR layers that are photolysed away in the harsh radiation field near the surface. The 3.3/11.2 AIB intensity ratio decreases by about 40% between the dissociation fronts and the H II region, indicating a shift in the polycyclic aromatic hydrocarbon (PAH) size distribution to larger PAHs in the PDR surface layers, also likely due to the effects of photochemistry. The observed broadening of the bands in the molecular PDR is consistent with an enhanced importance of smaller PAHs since smaller PAHs attain a higher internal excitation energy at a fixed photon energy. Conclusions. Spectral-imaging observations of the Orion Bar using JWST yield key insights into the photochemical evolution of PAHs, such as the evolution responsible for the shift of 11.2 mu m AIB emission from class B-11.2 in the molecular PDR to class A(11.2) in the PDR surface layers. This photochemical evolution is driven by the increased importance of FUV processing in the PDR surface layers, resulting in a weeding out of the weakest links of the PAH family in these layers. For now, these JWST observations are consistent with a model in which the underlying PAH family is composed of a few species: the so-called 'grandPAHs'. |
| 资助项目 | Association of Universities for Research in Astronomy, Inc., under NASA[NAS 5-03127]; NASA Space Telescope Science Institute[1288]; University of Western Ontario; Institute for Earth and Space Exploration; Canadian Space Agency (CSA)[22JWGO1-16]; Natural Sciences and Engineering Research Council of Canada; Dutch Science Agency; NWO; NASA Ames Research Center through the San Jose State University Research Foundation[80NSSC22M0107]; Programme National Physique et Chimie du Milieu Interstellaire (PCMI) of CNRS/INSU with INC/INP; CEA; CNES; Spanish MCINN[PID2019-106110GB-I00]; JSPS Bilateral Program[120219939]; Deutsche Forschungsgemeinschaft (DFG)[184018867]; Spanish program Unidad de Excelencia Maria de Maeztu - MCIN/AEI[CEX2020-001058-M]; United Arab Emirates University (UAEU) through UAEU Program for Advanced Research (UPAR)[G00003479]; Department of Science and Technology -SERB via Core Research Grant (DST-CRG)[SERB-CRG/2021/000907]; Institutes of Eminence (IoE) incentive grant; BHU[incentive/2021-22/32439]; Banaras Hindu University, Varanasi; CAS; NASA; DST; Swedish Research Council[2020-03437]; MCIN/AEI[EUR2021-122006]; MCIN/AEI[TED2021-129416A-I00]; MCIN/AEI[PID2021-125309OA-I00]; European Union NextGenerationEU/PRTR; RSCF[21-12-00373] |
| 项目资助者 | Association of Universities for Research in Astronomy, Inc., under NASA[NAS 5-03127] ; NASA Space Telescope Science Institute[1288] ; University of Western Ontario ; Institute for Earth and Space Exploration ; Canadian Space Agency (CSA)[22JWGO1-16] ; Natural Sciences and Engineering Research Council of Canada ; Dutch Science Agency ; NWO ; NASA Ames Research Center through the San Jose State University Research Foundation[80NSSC22M0107] ; Programme National Physique et Chimie du Milieu Interstellaire (PCMI) of CNRS/INSU with INC/INP ; CEA ; CNES ; Spanish MCINN[PID2019-106110GB-I00] ; JSPS Bilateral Program[120219939] ; Deutsche Forschungsgemeinschaft (DFG)[184018867] ; Spanish program Unidad de Excelencia Maria de Maeztu - MCIN/AEI[CEX2020-001058-M] ; United Arab Emirates University (UAEU) through UAEU Program for Advanced Research (UPAR)[G00003479] ; Department of Science and Technology -SERB via Core Research Grant (DST-CRG)[SERB-CRG/2021/000907] ; Institutes of Eminence (IoE) incentive grant ; BHU[incentive/2021-22/32439] ; Banaras Hindu University, Varanasi ; CAS ; NASA ; DST ; Swedish Research Council[2020-03437] ; MCIN/AEI[EUR2021-122006, TED2021-129416A-I00, PID2021-125309OA-I00] ; European Union NextGenerationEU/PRTR ; RSCF[21-12-00373] |
| 语种 | 英语 |
| 学科领域 | 天文学 |
| 文章类型 | Article |
| 出版者 | EDP SCIENCES S A |
| 出版地 | 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE |
| ISSN | 0004-6361 |
| URL | 查看原文 |
| WOS记录号 | WOS:001271220100003 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | WEBB-SPACE-TELESCOPE ; INTERSTELLAR-EMISSION FEATURE ; IR ABSORPTION-SPECTROSCOPY ; PHOTON-DOMINATED REGION ; LARGE-MAGELLANIC-CLOUD ; MU-M EMISSION ; PAH EMISSION ; HYDROCARBON EMISSION ; REFLECTION NEBULA ; PHOTODISSOCIATION REGIONS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27641 |
| 专题 | 其他 |
| 作者单位 | 1.Department of Physics & Astronomy, The University of Western Ontario, London ON N6A 3K7, Canada; 2.Institute for Earth and Space Exploration, The University of Western Ontario, London ON N6A 3K7, Canada; 3.Carl Sagan Center, SETI Institute, 339 Bernardo Avenue, Suite 200, Mountain View, CA 94043, USA; 4.Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands; 5.Astronomy Department, University of Maryland, College Park, MD 20742, USA; 6.Institut de Recherche en Astrophysique et Planétologie, Université Toulouse III – Paul Sabatier, CNRS, CNES, 9 Av. du colonel Roche, 31028 Toulouse Cedex 04, France; 7.Institut d’Astrophysique Spatiale, Université Paris-Saclay, CNRS, Bâtiment 121, 91405 Orsay Cedex, France; 8.Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA; 9.Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA; 10.ACRI-ST, Centre d’Etudes et de Recherche de Grasse (CERGA), 10 Av. Nicolas Copernic, 06130 Grasse, France; 11.INCLASS Common Laboratory, 10 Av. Nicolas Copernic, 06130 Grasse, France; 12.NASA Ames Research Center, MS 245-6, Moffett Field, CA 94035-1000, USA; 13.LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Université, 92190 Meudon, France; 14.Instituto de Física Fundamental (CSIC), Calle Serrano 121-123, 28006 Madrid, Spain; 15.Institut des Sciences Moléculaires d’Orsay, CNRS, Université Paris-Saclay, Bâtiment 520, 91405 Orsay Cedex, France; 16.UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK; 17.Observatorio Astronómico Nacional (OAN,IGN), Alfonso XII, 3, 28014 Madrid, Spain; 18.Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281/S9, 9000 Gent, Belgium; 19.KU Leuven Quantum Solid State Physics (QSP), Celestijnenlaan 200d – PO Box 2414, 3001 Leuven, Belgium; 20.Institut de Planétologie et d’Astrophysique de Grenoble (IPAG), Université Grenoble Alpes, CNRS, 38000 Grenoble, France; 21.Institut de Radioastronomie Millimétrique (IRAM), 300 rue de la Piscine, 38406 Saint-Martin-d’Hères, France; 22.I. Physikalisches Institut der Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany; 23.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan; 24.Department of Physics, Faculty of Science and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan; 25.Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA; 26.Physikalischer Verein – Gesellschaft für Bildung und Wissenschaft, Robert-Mayer-Straße 2, 60325 Frankfurt am Main, Germany; 27.Institut für Angewandte Physik. Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany; 28.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, Sweden; 29.Instituto de Astrofísica e Ciências do Espaço, Tapada da Ajuda, Edifício Leste, 2° Piso, 1349-018 Lisboa, Portugal; 30.Instituto de Física e Química, Universidade Federal de Itajubá, Av. BPS 1303, Pinheirinho, 37500-903, Itajubá, MG, Brazil; 31.Bay Area Environmental Research Institute, Moffett Field, CA 94035, USA; 32.Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Rd, Clayton, Victoria 3168, Melbourne, Australia; 33.INAF – Osservatorio Astrofisico di Catania, Via Santa Sofia 78, 95123 Catania, Italy; 34.Laboratoire de Physique de l’École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France; 35.Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303, USA; 36.Department of Chemistry, University of Colorado, Boulder, CO 80309, USA; 37.Institute for Modeling Plasma, Atmospheres, and Cosmic Dust (IMPACT), University of Colorado, Boulder, CO 80303, USA; 38.Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands; 39.FELIX Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands; 40.School of Physics, University of Hyderabad, Hyderabad, Telangana 500046, India; 41.Department of Earth, Environment, and Physics Worcester State University, 486 Chandler St, Worcester, MA 01602, USA; 42.Anton Pannekoek Institute for Astronomy (API), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands; 43.Delft University of Technology, Delft, Mekelweg 5, 2628 CD Delft, The Netherlands; 44.Laboratoire de Physique des deux infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS/IN2P3, Bâtiment 104, 91405 Orsay Cedex, France; 45.Department of Chemistry, GITAM school of Science, GITAM Deemed to be University, NH 207, Nagadenehalli, Doddaballapur taluk, Bengaluru – 561203, Karnataka, India; 46.Institut de Physique de Rennes, UMR CNRS 6251, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France; 47.Department of Chemistry, The University of British Columbia, Vancouver, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada; 48.National Radio Astronomy Observatory (NRAO), 520 Edgemont Road, Charlottesville, VA 22903, USA; 49.European Space Astronomy Centre (ESAC/ESA), Villanueva de la Cañada, 28692 Madrid, Spain; 50.Observatoire de Paris, PSL University, Sorbonne Université, LERMA, 75014 Paris, France; 51.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge MA 02138, USA; 52.Sorbonne Université, CNRS, UMR 7095, Institut d’Astrophysique de Paris, 98bis bd Arago, 75014 Paris, France; 53.Institut Universitaire de France, Ministère de l’Enseignement Supérieur et de la Recherche, 1 rue Descartes, 75231 Paris Cedex 05, France; 54.Department of Physics and Astronomy, Rice University, Houston TX, 77005-1892, USA; 55.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, PR China; 56.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, PR China; 57.Departments of Chemistry and Astronomy, University of Virginia, Charlottesville, Virginia 22904, USA; 58.InterCat and Dept. Physics and Astron., Aarhus University, Ny Munkegade 120, 8000 Aarhus C, Denmark; 59.Laboratory Astrophysics Group of the Max Planck Institute for Astronomy at the Friedrich Schiller University Jena, Institute of Solid State Physics, Helmholtzweg 3, 07743 Jena, Germany; 60.Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, 05509-090 São Paulo, SP, Brazil; 61.Department of Physics and Astronomy, San José State University, San Jose, CA 95192, USA; 62.Institut de Ciencies de l’Espai (ICE, CSIC), Can Magrans, s/n, 08193 Bellaterra, Barcelona, Spain; 63.ICREA, Pg. Lluìs Companys 23, 08010 Barcelona, Spain; 64.Institut d’Estudis Espacials de Catalunya (IEEC), 08034 Barcelona, Spain; 65.European Space Agency, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21218, USA; 66.Institute of Astronomy, Russian Academy of Sciences, 119017, Pyatnitskaya str. 48, Moscow, Russia; 67.Department of Earth, Ocean, & Atmospheric Sciences, University of British Columbia, British Columbia V6T 1Z4, Canada; 68.Telespazio UK for ESA, ESAC, 28692 Villanueva de la Cañada, Madrid, Spain; 69.IPAC, California Institute of Technology, Pasadena, CA, USA; 70.Department of Physics and Astronomy, University of Missouri, 701 S College Ave, Columbia, MO 65211, USA; 71.Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany; 72.Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; 73.Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, 420 Latimer Hall, University of California, Berkeley, CA 94720-1460, USA; 74.AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, 91191 Gif-sur-Yvette, France; 75.Institut des Sciences Moléculaires, CNRS, Université de Bordeaux, 33405 Talence, France; 76.Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; 77.Instituto de Ciencia de Materiales de Madrid (CSIC), Sor Juana Ines de la Cruz 3, 28049, Madrid, Spain; 78.Department of Physics, PO Box 64, 00014 University of Helsinki, Helsinki, Finland; 79.Steward Observatory, University of Arizona, Tucson, AZ 85721-0065, USA; 80.BoldlyGo Institute, 31 W 34TH ST FL 7 STE 7159, New York, NY 10001, USA; 81.Department of Physics, College of Science, United Arab Emirates University (UAEU), Al-Ain 15551, UAE; 82.National Astronomical Observatory of Japan, National Institutes of Natural Science, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 83.California Institute of Technology, IPAC, 770, S. Wilson Ave., Pasadena, CA 91125, USA; 84.Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India; 85.University of Central Florida, Orlando, FL 32765, USA; 86.Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, PO Box 94157, 1090 GD, Amsterdam, The Netherlands; 87.Laboratoire de Chimie et Physique Quantiques LCPQ/FERMI, UMR5626, Université de Toulouse (UPS) and CNRS, Toulouse, France; 88.Instituto de Matemática, Estatística e Física, Universidade Federal do Rio Grande, 96201-900 Rio Grande, RS, Brazil; 89.Center for Astrophysics and Space Sciences, Department of Physics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; 90.School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, UK; 91.Astronomy Department, Ohio State University, Columbus, OH 43210, USA; 92.Space Science Institute, 4765 Walnut St., R203, Boulder, CO 80301, USA; 93.Department of Physics, Stockholm University, 10691 Stockholm, Sweden; 94.Department of Physics, Texas State University, San Marcos, TX 78666, USA; 95.School of Physics and Astronomy, Sun Yat-sen University, 2 Da Xue Road, Tangjia, Zhuhai 519000, Guangdong Province, PR China; 96.Star and Planet Formation Laboratory, RIKEN Cluster for Pioneering Research, Hirosawa 2-1, Wako, Saitama 351-0198, Japan; 97.Institute of Deep Space Sciences, Deep Space Exploration Laboratory, Hefei 230026, PR China |
| 推荐引用方式 GB/T 7714 | Chown, Ryan,Sidhu, Ameek,Peeters, Els,et al. PDRs4All IV. An embarrassment of riches: Aromatic infrared bands in the Orion Bar[J]. ASTRONOMY & ASTROPHYSICS,2024,685. |
| APA | Chown, Ryan.,Sidhu, Ameek.,Peeters, Els.,Tielens, Alexander G. G. M..,Cami, Jan.,...&Zhen, Junfeng.(2024).PDRs4All IV. An embarrassment of riches: Aromatic infrared bands in the Orion Bar.ASTRONOMY & ASTROPHYSICS,685. |
| MLA | Chown, Ryan,et al."PDRs4All IV. An embarrassment of riches: Aromatic infrared bands in the Orion Bar".ASTRONOMY & ASTROPHYSICS 685(2024). |
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