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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 14712naa a2202017 4500 | |
| 001 | oai:research.chalmers.se:4bd2c4be-ce64-4cd7-bdaa-db8758543cfb | |
| 003 | SwePub | |
| 008 | 240805s2024 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://research.chalmers.se/publication/5422192 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2024492952 DOI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a De Putte, Dries Vanu Space Telescope Science Institute (STScI)4 aut |
| 245 | 1 0 | a PDRs4All VIII. Mid-infrared emission line inventory of the Orion Bar |
| 264 | 1 | c 2024 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Context . Mid-infrared emission features are important probes of the properties of ionized gas and hot or warm molecular gas, which are difficult to probe at other wavelengths. The Orion Bar photodissociation region (PDR) is a bright, nearby, and frequently studied target containing large amounts of gas under these conditions. Under the “PDRs4All” Early Release Science Program for JWST, a part of the Orion Bar was observed with MIRI integral field unit (IFU) spectroscopy, and these high-sensitivity IR spectroscopic images of very high angular resolution (0.2′′) provide a rich observational inventory of the mid-infrared (MIR) emission lines, while resolving the H II region, the ionization front, and multiple dissociation fronts. Aims . We list, identify, and measure the most prominent gas emission lines in the Orion Bar using the new MIRI IFU data. An initial analysis summarizes the physical conditions of the gas and demonstrates the potential of these new data and future IFU observations with JWST. Methods. The MIRI IFU mosaic spatially resolves the substructure of the PDR, its footprint cutting perpendicularly across the ionization front and three dissociation fronts. We performed an up-to-date data reduction, and extracted five spectra that represent the ionized, atomic, and molecular gas layers. We identified the observed lines through a comparison with theoretical line lists derived from atomic data and simulated PDR models. The identified species and transitions are summarized in the main table of this work, with measurements of the line intensities and central wavelengths. Results . We identified around 100 lines and report an additional 18 lines that remain unidentified. The majority consists of H I recombination lines arising from the ionized gas layer bordering the PDR. The H I line ratios are well matched by emissivity coefficients from H recombination theory, but deviate by up to 10% because of contamination by He I lines. We report the observed emission lines of various ionization stages of Ne, P, S, Cl, Ar, Fe, and Ni. We show how the Ne III/Ne II, S IV/S III, and Ar III/Ar II ratios trace the conditions in the ionized layer bordering the PDR, while Fe III/Fe II and Ni III/Ni II exhibit a different behavior, as there are significant contributions to Fe II and Ni II from the neutral PDR gas. We observe the pure-rotational H2 lines in the vibrational ground state from 0–0 S(1) to 0–0 S(8), and in the first vibrationally excited state from 1–1 S(5) to 1–1 S(9). We derive H2 excitation diagrams, and for the three observed dissociation fronts, the rotational excitation can be approximated with one thermal (∼700 K) component representative of an average gas temperature, and one nonthermal component (∼2700 K) probing the effect of UV pumping. We compare these results to an existing model of the Orion Bar PDR, and find that the predicted excitation matches the data qualitatively, while adjustments to the parameters of the PDR model are required to reproduce the intensity of the 0–0 S(6) to S(8) lines. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng |
| 653 | a photon-dominated region (PDR) | |
| 653 | a ISM: atoms | |
| 653 | a ISM: lines and bands | |
| 653 | a infrared: ISM | |
| 653 | a ISM: molecules | |
| 700 | 1 | a Meshaka, Raphaelu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Trahin, Borisu Space Telescope Science Institute (STScI)4 aut |
| 700 | 1 | a Habart, Emilieu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Peeters, Elsu Western University4 aut |
| 700 | 1 | a Berné, O.u Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Alarcon, Felipeu University of Michigan4 aut |
| 700 | 1 | a Canin, Amelieu Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Chown, Ryanu Western University4 aut |
| 700 | 1 | a Schroetter, Ilaneu Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Sidhu, Ameeku Western University4 aut |
| 700 | 1 | a Boersma, Christiaanu NASA Ames Research Center4 aut |
| 700 | 1 | a Bron, E.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Dartois, E.u Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Goicoechea, J.R.u CSIC - Instituto de Fisica Fundamental (IFF)4 aut |
| 700 | 1 | a Gordon, K.u Space Telescope Science Institute (STScI)4 aut |
| 700 | 1 | a Onaka, Takashiu University of Tokyo, Japan4 aut |
| 700 | 1 | a Tielens, A.G.G.M.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
| 700 | 1 | a Verstraete, Laurentu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Wolfire, M.G.4 aut |
| 700 | 1 | a Abergel, Alainu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Bergin, E. A.u University of Michigan4 aut |
| 700 | 1 | a Bernard-Salas, J.u Observatoire de la Cote d'Azur4 aut |
| 700 | 1 | a Cami, Janu Western University4 aut |
| 700 | 1 | a Cuadrado, S.u CSIC - Instituto de Fisica Fundamental (IFF)4 aut |
| 700 | 1 | a Dicken, D.u Royal Observatory4 aut |
| 700 | 1 | a Elyajouri, Meriemu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Fuente, A.u Centro de Astrobiologia (CAB)4 aut |
| 700 | 1 | a Joblin, C.u Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Khan, Bariau Western University4 aut |
| 700 | 1 | a Lacinbala, Ozan4 aut |
| 700 | 1 | a Languignon, Davidu Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Gal, R. Le4 aut |
| 700 | 1 | a Maragkoudakis, Alexandrosu NASA Ames Research Center4 aut |
| 700 | 1 | a Okada, Yokou Universität zu Köln,University of Cologne4 aut |
| 700 | 1 | a Pasquini, Sofiau Western University4 aut |
| 700 | 1 | a Pound, Marc W.4 aut |
| 700 | 1 | a Robberto, Massimou Space Telescope Science Institute (STScI)4 aut |
| 700 | 1 | a Rollig, M.4 aut |
| 700 | 1 | a Schefter, Bethanyu Western University4 aut |
| 700 | 1 | a Schirmer, Thiébautu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Tabone, Benoîtu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Vicente, S.u Instituto de Astrofísica e Ciências do Espaço (IA),Institute of Astrophysics and Space Sciences (IA)4 aut |
| 700 | 1 | a Zannese, Marionu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Colgan, Sean W. J.u NASA Ames Research Center4 aut |
| 700 | 1 | a He, J. H.u Yunnan Observatories4 aut |
| 700 | 1 | a Rouillé, Gaëlu Friedrich-Schiller-Universität Jena,Friedrich Schiller University Jena4 aut |
| 700 | 1 | a Togi, Adityau Texas State University4 aut |
| 700 | 1 | a Aleman, I.u Universidade Federal de Itajuba,Federal University of Itajubá4 aut |
| 700 | 1 | a Auchettl, Rebeccau Australian Synchrotron (ANSTO)4 aut |
| 700 | 1 | a Baratta, Giuseppe Antoniou Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Bejaoui, Salmau NASA Ames Research Center4 aut |
| 700 | 1 | a Bera, Partha P.u NASA Ames Research Center4 aut |
| 700 | 1 | a Black, John H,d 1949u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)jblack |
| 700 | 1 | a Boulanger, F.4 aut |
| 700 | 1 | a Bouwman, Jordyu University of Colorado at Boulder4 aut |
| 700 | 1 | a Brandl, B. R.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
| 700 | 1 | a Brechignac, Philippeu Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Brünken, S.u Radboud Universiteit,Radboud University4 aut |
| 700 | 1 | a Buragohain, Mridusmitau University of Hyderabad4 aut |
| 700 | 1 | a Burkhardt, Andrew4 aut |
| 700 | 1 | a Candian, Alessandrau Anton Pannekoek Institute for Astronomy4 aut |
| 700 | 1 | a Cazaux, S.u Technische Universiteit Delft,Delft University of Technology (TU Delft)4 aut |
| 700 | 1 | a Cernicharo, Joseu CSIC - Instituto de Fisica Fundamental (IFF)4 aut |
| 700 | 1 | a Chabot, Marinu Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Chakraborty, Shubhadip4 aut |
| 700 | 1 | a Champion, Jasonu Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Cooke, Ilsa R.u University of British Columbia (UBC)4 aut |
| 700 | 1 | a Coutens, A.u Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Cox, N. L. J.u Observatoire de la Cote d'Azur4 aut |
| 700 | 1 | a Demyk, K.u Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Meyer, Jennifer Donovanu National Radio Astronomy Observatory4 aut |
| 700 | 1 | a Foschino, Sachau Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Garcia-Lario, P.u European Space Astronomy Centre (ESAC)4 aut |
| 700 | 1 | a Gerin, M.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Gottlieb, C. A.u Harvard-Smithsonian Center for Astrophysics4 aut |
| 700 | 1 | a Guillard, P.u Institut d 'Astrophysique de Paris4 aut |
| 700 | 1 | a Gusdorf, Antoine4 aut |
| 700 | 1 | a Hartigan, Patricku Rice University4 aut |
| 700 | 1 | a Herbst, Eu University of Virginia4 aut |
| 700 | 1 | a Hornekaer, Livu Århus Universitet,Aarhus University4 aut |
| 700 | 1 | a Issa, Linau Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Jäger, Corneliau Friedrich-Schiller-Universität Jena,Friedrich Schiller University Jena4 aut |
| 700 | 1 | a Janot-Pacheco, Eduardou Universidade de Sao Paulo (USP),University of Sao Paulo (USP)4 aut |
| 700 | 1 | a Kannavou, Olgau Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Kaufman, M.u San Jose State University4 aut |
| 700 | 1 | a Kemper, F.u Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC4 aut |
| 700 | 1 | a Kendrew, S.u European Space Agency (ESA)4 aut |
| 700 | 1 | a Kirsanova, M. S.u Russian Academy of Sciences4 aut |
| 700 | 1 | a Klaassen, Pamelau Royal Observatory4 aut |
| 700 | 1 | a Kwok, Sunu University of British Columbia (UBC)4 aut |
| 700 | 1 | a Labiano, A.u European Space Astronomy Centre (ESAC)4 aut |
| 700 | 1 | a Lai, Thomasu California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Le Floch, Bertrandu Laboratoire d'Astrophysique de Bordeaux4 aut |
| 700 | 1 | a Le Petit, Franck,d 1975u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Li, Aigenu University of Missouri4 aut |
| 700 | 1 | a Linz, H.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
| 700 | 1 | a MacKie, Cameron J.u Lawrence Berkeley National Laboratory4 aut |
| 700 | 1 | a Madden, S. C.u Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Mascetti, Joëlle4 aut |
| 700 | 1 | a McGuire, Brettu National Radio Astronomy Observatory4 aut |
| 700 | 1 | a Merino, Pablou CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM)4 aut |
| 700 | 1 | a Micelotta, Elisabetta R.u Helsingin Yliopisto,University of Helsinki4 aut |
| 700 | 1 | a Morse, Jon A.4 aut |
| 700 | 1 | a Mulas, Giacomou Institut de Recherche en Astrophysique et Planétologie (IRAP)4 aut |
| 700 | 1 | a Neelamkodan, Naslim4 aut |
| 700 | 1 | a Ohsawa, Ryouu National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Omont, A.A.u Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Paladini, R.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Palumbo, Maria Elisabettau Istituto nazionale di astrofisica (INAF)4 aut |
| 700 | 1 | a Pathak, Amitu Banaras Hindu University4 aut |
| 700 | 1 | a Pendleton, Yvonne J.u University of Central Florida (UCF)4 aut |
| 700 | 1 | a Petrignani, Annemiekeu Universiteit Van Amsterdam,University of Amsterdam4 aut |
| 700 | 1 | a Pino, Thomasu Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Puga, E.u European Space Agency (ESA)4 aut |
| 700 | 1 | a Rangwala, Naseemu NASA Ames Research Center4 aut |
| 700 | 1 | a Rapacioli, Mathias4 aut |
| 700 | 1 | a Rho, J.u SETI Institute4 aut |
| 700 | 1 | a Ricca, Alessandrau SETI Institute4 aut |
| 700 | 1 | a Roman-Duval, J.u Space Telescope Science Institute (STScI)4 aut |
| 700 | 1 | a Roser, Josephu SETI Institute4 aut |
| 700 | 1 | a Roueff, Evelyneu Observatoire de Paris,Paris Observatory4 aut |
| 700 | 1 | a Salama, Faridu NASA Ames Research Center4 aut |
| 700 | 1 | a Sales, Dinalva A.4 aut |
| 700 | 1 | a Sandstrom, Karinu University of California at San Diego (UCSD)4 aut |
| 700 | 1 | a Sarre, Peteru University Of Nottingham4 aut |
| 700 | 1 | a Sciamma-O'Brien, Ellau NASA Ames Research Center4 aut |
| 700 | 1 | a Sellgren, Krisu Ohio State University4 aut |
| 700 | 1 | a Shenoy, Sachindev S.u Space Science Institute4 aut |
| 700 | 1 | a Teyssier, D.u European Space Astronomy Centre (ESAC)4 aut |
| 700 | 1 | a Thomas, Richard D.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Witt, Adolf N.u University of Toledo4 aut |
| 700 | 1 | a Wootten, A.u National Radio Astronomy Observatory4 aut |
| 700 | 1 | a Ysard, Nathalieu Institut d'Astrophysique Spatiale4 aut |
| 700 | 1 | a Zettergren, H.u Stockholms universitet,Stockholm University4 aut |
| 700 | 1 | a Zhang, Yongu Sun Yat-Sen University4 aut |
| 700 | 1 | a Zhang, Ziwei E.u RIKEN4 aut |
| 700 | 1 | a Zhen, Junfeng4 aut |
| 710 | 2 | a Space Telescope Science Institute (STScI)b Institut d'Astrophysique Spatiale4 org |
| 773 | 0 | t Astronomy and Astrophysicsg 687q 687x 0004-6361x 1432-0746 |
| 856 | 4 | u https://research.chalmers.se/publication/542219/file/542219_Fulltext.pdfx primaryx freey FULLTEXT |
| 856 | 4 8 | u https://research.chalmers.se/publication/542219 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202449295 |
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