PDRs4All - II. JWST’s NIR and MIR imaging view of the Orion Nebula

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dc.citation.articleNumberA73en_US
dc.citation.journalTitleAstronomy & Astrophysicsen_US
dc.citation.volumeNumber685en_US
dc.contributor.authorHabart, Emilieen_US
dc.contributor.authorPeeters, Elsen_US
dc.contributor.authorBerné, Olivieren_US
dc.contributor.authorTrahin, Borisen_US
dc.contributor.authorCanin, Amélieen_US
dc.contributor.authorChown, Ryanen_US
dc.contributor.authorSidhu, Ameeken_US
dc.contributor.authorPutte, Dries Van Deen_US
dc.contributor.authorAlarcón, Felipeen_US
dc.contributor.authorSchroetter, Ilaneen_US
dc.contributor.authorDartois, Emmanuelen_US
dc.contributor.authorVicente, Sílviaen_US
dc.contributor.authorAbergel, Alainen_US
dc.contributor.authorBergin, Edwin A.en_US
dc.contributor.authorBernard-Salas, Jeronimoen_US
dc.contributor.authorBoersma, Christiaanen_US
dc.contributor.authorBron, Emericen_US
dc.contributor.authorCami, Janen_US
dc.contributor.authorCuadrado, Saraen_US
dc.contributor.authorDicken, Danielen_US
dc.contributor.authorElyajouri, Meriemen_US
dc.contributor.authorFuente, Asunciónen_US
dc.contributor.authorGoicoechea, Javier R.en_US
dc.contributor.authorGordon, Karl D.en_US
dc.contributor.authorIssa, Linaen_US
dc.contributor.authorJoblin, Christineen_US
dc.contributor.authorKannavou, Olgaen_US
dc.contributor.authorKhan, Bariaen_US
dc.contributor.authorLacinbala, Ozanen_US
dc.contributor.authorLanguignon, Daviden_US
dc.contributor.authorGal, Romane Leen_US
dc.contributor.authorMaragkoudakis, Alexandrosen_US
dc.contributor.authorMeshaka, Raphaelen_US
dc.contributor.authorOkada, Yokoen_US
dc.contributor.authorOnaka, Takashien_US
dc.contributor.authorPasquini, Sofiaen_US
dc.contributor.authorPound, Marc W.en_US
dc.contributor.authorRobberto, Massimoen_US
dc.contributor.authorRöllig, Markusen_US
dc.contributor.authorSchefter, Bethanyen_US
dc.contributor.authorSchirmer, Thiébauten_US
dc.contributor.authorTabone, Benoiten_US
dc.contributor.authorTielens, Alexander G. G. M.en_US
dc.contributor.authorWolfire, Mark G.en_US
dc.contributor.authorZannese, Marionen_US
dc.contributor.authorYsard, Nathalieen_US
dc.contributor.authorMiville-Deschenes, Marc-Antoineen_US
dc.contributor.authorAleman, Isabelen_US
dc.contributor.authorAllamandola, Louisen_US
dc.contributor.authorAuchettl, Rebeccaen_US
dc.contributor.authorBaratta, Giuseppe Antonioen_US
dc.contributor.authorBejaoui, Salmaen_US
dc.contributor.authorBera, Partha P.en_US
dc.contributor.authorBlack, John H.en_US
dc.contributor.authorBoulanger, Francoisen_US
dc.contributor.authorBouwman, Jordyen_US
dc.contributor.authorBrandl, Bernharden_US
dc.contributor.authorBrechignac, Philippeen_US
dc.contributor.authorBrünken, Sandraen_US
dc.contributor.authorBuragohain, Mridusmitaen_US
dc.contributor.authorBurkhardt, Andrewen_US
dc.contributor.authorCandian, Alessandraen_US
dc.contributor.authorCazaux, Stéphanieen_US
dc.contributor.authorCernicharo, Joseen_US
dc.contributor.authorChabot, Marinen_US
dc.contributor.authorChakraborty, Shubhadipen_US
dc.contributor.authorChampion, Jasonen_US
dc.contributor.authorColgan, Sean W. J.en_US
dc.contributor.authorCooke, Ilsa R.en_US
dc.contributor.authorCoutens, Audreyen_US
dc.contributor.authorCox, Nick L. J.en_US
dc.contributor.authorDemyk, Karineen_US
dc.contributor.authorMeyer, Jennifer Donovanen_US
dc.contributor.authorFoschino, Sachaen_US
dc.contributor.authorGarcía-Lario, Pedroen_US
dc.contributor.authorGavilan, Lissethen_US
dc.contributor.authorGerin, Maryvonneen_US
dc.contributor.authorGottlieb, Carl A.en_US
dc.contributor.authorGuillard, Pierreen_US
dc.contributor.authorGusdorf, Antoineen_US
dc.contributor.authorHartigan, Patricken_US
dc.contributor.authorHe, Jinhuaen_US
dc.contributor.authorHerbst, Ericen_US
dc.contributor.authorHornekaer, Liven_US
dc.contributor.authorJäger, Corneliaen_US
dc.contributor.authorJanot-Pacheco, Eduardoen_US
dc.contributor.authorKaufman, Michaelen_US
dc.contributor.authorKemper, Franciscaen_US
dc.contributor.authorKendrew, Sarahen_US
dc.contributor.authorKirsanova, Maria S.en_US
dc.contributor.authorKlaassen, Pamelaen_US
dc.contributor.authorKwok, Sunen_US
dc.contributor.authorLabiano, Álvaroen_US
dc.contributor.authorLai, Thomas S.-Y.en_US
dc.contributor.authorLee, Timothy J.en_US
dc.contributor.authorLefloch, Bertranden_US
dc.contributor.authorPetit, Franck Leen_US
dc.contributor.authorLi, Aigenen_US
dc.contributor.authorLinz, Hendriken_US
dc.contributor.authorMackie, Cameron J.en_US
dc.contributor.authorMadden, Suzanne C.en_US
dc.contributor.authorMascetti, Joëlleen_US
dc.contributor.authorMcGuire, Brett A.en_US
dc.contributor.authorMerino, Pabloen_US
dc.contributor.authorMicelotta, Elisabetta R.en_US
dc.contributor.authorMisselt, Karlen_US
dc.contributor.authorMorse, Jon A.en_US
dc.contributor.authorMulas, Giacomoen_US
dc.contributor.authorNeelamkodan, Naslimen_US
dc.contributor.authorOhsawa, Ryouen_US
dc.contributor.authorOmont, Alainen_US
dc.contributor.authorPaladini, Robertaen_US
dc.contributor.authorPalumbo, Maria Elisabettaen_US
dc.contributor.authorPathak, Amiten_US
dc.contributor.authorPendleton, Yvonne J.en_US
dc.contributor.authorPetrignani, Annemiekeen_US
dc.contributor.authorPino, Thomasen_US
dc.contributor.authorPuga, Elenaen_US
dc.contributor.authorRangwala, Naseemen_US
dc.contributor.authorRapacioli, Mathiasen_US
dc.contributor.authorRicca, Alessandraen_US
dc.contributor.authorRoman-Duval, Juliaen_US
dc.contributor.authorRoser, Josephen_US
dc.contributor.authorRoueff, Evelyneen_US
dc.contributor.authorRouillé, Gaëlen_US
dc.contributor.authorSalama, Fariden_US
dc.contributor.authorSales, Dinalva A.en_US
dc.contributor.authorSandstrom, Karinen_US
dc.contributor.authorSarre, Peteren_US
dc.contributor.authorSciamma-O’Brien, Ellaen_US
dc.contributor.authorSellgren, Krisen_US
dc.contributor.authorShenoy, Sachindev S.en_US
dc.contributor.authorTeyssier, Daviden_US
dc.contributor.authorThomas, Richard D.en_US
dc.contributor.authorTogi, Adityaen_US
dc.contributor.authorVerstraete, Laurenten_US
dc.contributor.authorWitt, Adolf N.en_US
dc.contributor.authorWootten, Alwynen_US
dc.contributor.authorZettergren, Henningen_US
dc.contributor.authorZhang, Yongen_US
dc.contributor.authorZhang, Ziwei E.en_US
dc.contributor.authorZhen, Junfengen_US
dc.date.accessioned2024-08-29T21:11:45Zen_US
dc.date.available2024-08-29T21:11:45Zen_US
dc.date.issued2024en_US
dc.description.abstractContext. The James Webb Space Telescope (JWST) has captured the most detailed and sharpest infrared (IR) images ever taken of the inner region of the Orion Nebula, the nearest massive star formation region, and a prototypical highly irradiated dense photo-dissociation region (PDR). Aims. We investigate the fundamental interaction of far-ultraviolet (FUV) photons with molecular clouds. The transitions across the ionization front (IF), dissociation front (DF), and the molecular cloud are studied at high-angular resolution. These transitions are relevant to understanding the effects of radiative feedback from massive stars and the dominant physical and chemical processes that lead to the IR emission that JWST will detect in many Galactic and extragalactic environments. Methods. We utilized NIRCam and MIRI to obtain sub-arcsecond images over ~150″ and 42″ in key gas phase lines (e.g., Pa α, Br α, [FeII] 1.64 µm, H2 1−0 S(1) 2.12 µm, 0–0 S(9) 4.69 µm), aromatic and aliphatic infrared bands (aromatic infrared bands at 3.3–3.4 µm, 7.7, and 11.3 µm), dust emission, and scattered light. Their emission are powerful tracers of the IF and DF, FUV radiation field and density distribution. Using NIRSpec observations the fractional contributions of lines, AIBs, and continuum emission to our NIRCam images were estimated. A very good agreement is found for the distribution and intensity of lines and AIBs between the NIRCam and NIRSpec observations. Results. Due to the proximity of the Orion Nebula and the unprecedented angular resolution of JWST, these data reveal that the molecular cloud borders are hyper structured at small angular scales of ~0.1–1″ (~0.0002–0.002 pc or ~40–400 au at 414 pc). A diverse set of features are observed such as ridges, waves, globules and photoevaporated protoplanetary disks. At the PDR atomic to molecular transition, several bright features are detected that are associated with the highly irradiated surroundings of the dense molecular condensations and embedded young star. Toward the Orion Bar PDR, a highly sculpted interface is detected with sharp edges and density increases near the IF and DF. This was predicted by previous modeling studies, but the fronts were unresolved in most tracers. The spatial distribution of the AIBs reveals that the PDR edge is steep and is followed by an extensive warm atomic layer up to the DF with multiple ridges. A complex, structured, and folded H0/H2 DF surface was traced by the H2 lines. This dataset was used to revisit the commonly adopted 2D PDR structure of the Orion Bar as our observations show that a 3D “terraced” geometry is required to explain the JWST observations. JWST provides us with a complete view of the PDR, all the way from the PDR edge to the substructured dense region, and this allowed us to determine, in detail, where the emission of the atomic and molecular lines, aromatic bands, and dust originate. Conclusions. This study offers an unprecedented dataset to benchmark and transform PDR physico-chemical and dynamical models for the JWST era. A fundamental step forward in our understanding of the interaction of FUV photons with molecular clouds and the role of FUV irradiation along the star formation sequence is provided.en_US
dc.identifier.citationHabart, E., Peeters, E., Berné, O., Trahin, B., Canin, A., Chown, R., Sidhu, A., Putte, D. V. D., Alarcón, F., Schroetter, I., Dartois, E., Vicente, S., Abergel, A., Bergin, E. A., Bernard-Salas, J., Boersma, C., Bron, E., Cami, J., Cuadrado, S., … Zhen, J. (2024). PDRs4All—II. JWST’s NIR and MIR imaging view of the Orion Nebula. Astronomy & Astrophysics, 685, A73. https://doi.org/10.1051/0004-6361/202346747en_US
dc.identifier.digitalaa46747-23en_US
dc.identifier.doihttps://doi.org/10.1051/0004-6361/202346747en_US
dc.identifier.urihttps://hdl.handle.net/1911/117725en_US
dc.language.isoengen_US
dc.publisherEDP Sciencesen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titlePDRs4All - II. JWST’s NIR and MIR imaging view of the Orion Nebulaen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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