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PDRs4All VIII. Mid-...
PDRs4All VIII. Mid-infrared emission line inventory of the Orion Bar
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- De Putte, Dries Van (author)
- Space Telescope Science Institute (STScI)
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- Meshaka, Raphael (author)
- Institut d'Astrophysique Spatiale
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- Trahin, Boris (author)
- Space Telescope Science Institute (STScI)
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show more...
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- Habart, Emilie (author)
- Institut d'Astrophysique Spatiale
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- Peeters, Els (author)
- Western University
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- Berné, O. (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Alarcon, Felipe (author)
- University of Michigan
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- Canin, Amelie (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Chown, Ryan (author)
- Western University
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- Schroetter, Ilane (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Sidhu, Ameek (author)
- Western University
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- Boersma, Christiaan (author)
- NASA Ames Research Center
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- Bron, E. (author)
- Observatoire de Paris,Paris Observatory
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- Dartois, E. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Goicoechea, J.R. (author)
- CSIC - Instituto de Fisica Fundamental (IFF)
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- Gordon, K. (author)
- Space Telescope Science Institute (STScI)
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- Onaka, Takashi (author)
- University of Tokyo, Japan
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- Tielens, A.G.G.M. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Verstraete, Laurent (author)
- Institut d'Astrophysique Spatiale
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Wolfire, M.G. (author)
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- Abergel, Alain (author)
- Institut d'Astrophysique Spatiale
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- Bergin, E. A. (author)
- University of Michigan
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- Bernard-Salas, J. (author)
- Observatoire de la Cote d'Azur
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- Cami, Jan (author)
- Western University
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- Cuadrado, S. (author)
- CSIC - Instituto de Fisica Fundamental (IFF)
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- Dicken, D. (author)
- Royal Observatory
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- Elyajouri, Meriem (author)
- Institut d'Astrophysique Spatiale
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- Fuente, A. (author)
- Centro de Astrobiologia (CAB)
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- Joblin, C. (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Khan, Baria (author)
- Western University
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Lacinbala, Ozan (author)
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- Languignon, David (author)
- Observatoire de Paris,Paris Observatory
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Gal, R. Le (author)
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- Maragkoudakis, Alexandros (author)
- NASA Ames Research Center
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- Okada, Yoko (author)
- Universität zu Köln,University of Cologne
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- Pasquini, Sofia (author)
- Western University
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Pound, Marc W. (author)
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- Robberto, Massimo (author)
- Space Telescope Science Institute (STScI)
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Rollig, M. (author)
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- Schefter, Bethany (author)
- Western University
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- Schirmer, Thiébaut (author)
- Institut d'Astrophysique Spatiale
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- Tabone, Benoît (author)
- Institut d'Astrophysique Spatiale
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- Vicente, S. (author)
- Instituto de Astrofísica e Ciências do Espaço (IA),Institute of Astrophysics and Space Sciences (IA)
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- Zannese, Marion (author)
- Institut d'Astrophysique Spatiale
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- Colgan, Sean W. J. (author)
- NASA Ames Research Center
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- He, J. H. (author)
- Yunnan Observatories
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- Rouillé, Gaël (author)
- Friedrich-Schiller-Universität Jena,Friedrich Schiller University Jena
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- Togi, Aditya (author)
- Texas State University
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- Aleman, I. (author)
- Universidade Federal de Itajuba,Federal University of Itajubá
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- Auchettl, Rebecca (author)
- Australian Synchrotron (ANSTO)
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- Baratta, Giuseppe Antonio (author)
- Istituto nazionale di astrofisica (INAF)
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- Bejaoui, Salma (author)
- NASA Ames Research Center
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- Bera, Partha P. (author)
- NASA Ames Research Center
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- Black, John H, 1949 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Boulanger, F. (author)
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- Bouwman, Jordy (author)
- University of Colorado at Boulder
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- Brandl, B. R. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Brechignac, Philippe (author)
- Université Paris-Saclay,University Paris-Saclay
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- Brünken, S. (author)
- Radboud Universiteit,Radboud University
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- Buragohain, Mridusmita (author)
- University of Hyderabad
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Burkhardt, Andrew (author)
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- Candian, Alessandra (author)
- Anton Pannekoek Institute for Astronomy
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- Cazaux, S. (author)
- Technische Universiteit Delft,Delft University of Technology (TU Delft)
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- Cernicharo, Jose (author)
- CSIC - Instituto de Fisica Fundamental (IFF)
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- Chabot, Marin (author)
- Université Paris-Saclay,University Paris-Saclay
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Chakraborty, Shubhadip (author)
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- Champion, Jason (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Cooke, Ilsa R. (author)
- University of British Columbia (UBC)
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- Coutens, A. (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Cox, N. L. J. (author)
- Observatoire de la Cote d'Azur
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- Demyk, K. (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Meyer, Jennifer Donovan (author)
- National Radio Astronomy Observatory
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- Foschino, Sacha (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Garcia-Lario, P. (author)
- European Space Astronomy Centre (ESAC)
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- Gerin, M. (author)
- Observatoire de Paris,Paris Observatory
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- Gottlieb, C. A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Guillard, P. (author)
- Institut d 'Astrophysique de Paris
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Gusdorf, Antoine (author)
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- Hartigan, Patrick (author)
- Rice University
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- Herbst, E (author)
- University of Virginia
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- Hornekaer, Liv (author)
- Århus Universitet,Aarhus University
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- Issa, Lina (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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- Jäger, Cornelia (author)
- Friedrich-Schiller-Universität Jena,Friedrich Schiller University Jena
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- Janot-Pacheco, Eduardo (author)
- Universidade de Sao Paulo (USP),University of Sao Paulo (USP)
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- Kannavou, Olga (author)
- Institut d'Astrophysique Spatiale
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- Kaufman, M. (author)
- San Jose State University
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- Kemper, F. (author)
- Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC
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- Kendrew, S. (author)
- European Space Agency (ESA)
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- Kirsanova, M. S. (author)
- Russian Academy of Sciences
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- Klaassen, Pamela (author)
- Royal Observatory
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- Kwok, Sun (author)
- University of British Columbia (UBC)
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- Labiano, A. (author)
- European Space Astronomy Centre (ESAC)
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- Lai, Thomas (author)
- California Institute of Technology (Caltech)
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- Le Floch, Bertrand (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Le Petit, Franck, 1975 (author)
- Observatoire de Paris,Paris Observatory
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- Li, Aigen (author)
- University of Missouri
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- Linz, H. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- MacKie, Cameron J. (author)
- Lawrence Berkeley National Laboratory
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- Madden, S. C. (author)
- Université Paris-Saclay,University Paris-Saclay
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Mascetti, Joëlle (author)
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- McGuire, Brett (author)
- National Radio Astronomy Observatory
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- Merino, Pablo (author)
- CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM)
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- Micelotta, Elisabetta R. (author)
- Helsingin Yliopisto,University of Helsinki
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Morse, Jon A. (author)
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- Mulas, Giacomo (author)
- Institut de Recherche en Astrophysique et Planétologie (IRAP)
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Neelamkodan, Naslim (author)
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- Ohsawa, Ryou (author)
- National Astronomical Observatory of Japan
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- Omont, A.A. (author)
- Observatoire de Paris,Paris Observatory
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- Paladini, R. (author)
- California Institute of Technology (Caltech)
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- Palumbo, Maria Elisabetta (author)
- Istituto nazionale di astrofisica (INAF)
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- Pathak, Amit (author)
- Banaras Hindu University
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- Pendleton, Yvonne J. (author)
- University of Central Florida (UCF)
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- Petrignani, Annemieke (author)
- Universiteit Van Amsterdam,University of Amsterdam
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- Pino, Thomas (author)
- Université Paris-Saclay,University Paris-Saclay
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- Puga, E. (author)
- European Space Agency (ESA)
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- Rangwala, Naseem (author)
- NASA Ames Research Center
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Rapacioli, Mathias (author)
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- Rho, J. (author)
- SETI Institute
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- Ricca, Alessandra (author)
- SETI Institute
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- Roman-Duval, J. (author)
- Space Telescope Science Institute (STScI)
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- Roser, Joseph (author)
- SETI Institute
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- Roueff, Evelyne (author)
- Observatoire de Paris,Paris Observatory
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- Salama, Farid (author)
- NASA Ames Research Center
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Sales, Dinalva A. (author)
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- Sandstrom, Karin (author)
- University of California at San Diego (UCSD)
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- Sarre, Peter (author)
- University Of Nottingham
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- Sciamma-O'Brien, Ella (author)
- NASA Ames Research Center
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- Sellgren, Kris (author)
- Ohio State University
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- Shenoy, Sachindev S. (author)
- Space Science Institute
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- Teyssier, D. (author)
- European Space Astronomy Centre (ESAC)
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- Thomas, Richard D. (author)
- Stockholms universitet,Stockholm University
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- Witt, Adolf N. (author)
- University of Toledo
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- Wootten, A. (author)
- National Radio Astronomy Observatory
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- Ysard, Nathalie (author)
- Institut d'Astrophysique Spatiale
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- Zettergren, H. (author)
- Stockholms universitet,Stockholm University
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- Zhang, Yong (author)
- Sun Yat-Sen University
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- Zhang, Ziwei E. (author)
- RIKEN
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Zhen, Junfeng (author)
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Astronomy and Astrophysics. - 0004-6361 .- 1432-0746. ; 687
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- photon-dominated region (PDR)
- ISM: atoms
- ISM: lines and bands
- infrared: ISM
- ISM: molecules
Publication and Content Type
- art (subject category)
- ref (subject category)
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De Putte, Dries ...
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Meshaka, Raphael
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Trahin, Boris
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Habart, Emilie
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Peeters, Els
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Berné, O.
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Alarcon, Felipe
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Canin, Amelie
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Chown, Ryan
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Sidhu, Ameek
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Boersma, Christi ...
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Bron, E.
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Dartois, E.
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Goicoechea, J.R.
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Gordon, K.
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Onaka, Takashi
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Tielens, A.G.G.M ...
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Verstraete, Laur ...
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Wolfire, M.G.
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Abergel, Alain
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Bergin, E. A.
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Bernard-Salas, J ...
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Cami, Jan
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Cuadrado, S.
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Dicken, D.
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Elyajouri, Merie ...
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Fuente, A.
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Joblin, C.
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Khan, Baria
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Lacinbala, Ozan
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Languignon, Davi ...
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Gal, R. Le
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Maragkoudakis, A ...
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Okada, Yoko
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Pasquini, Sofia
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Pound, Marc W.
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Robberto, Massim ...
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Rollig, M.
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Schefter, Bethan ...
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Schirmer, Thiéba ...
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Tabone, Benoît
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Vicente, S.
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Zannese, Marion
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Colgan, Sean W. ...
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He, J. H.
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Rouillé, Gaël
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Togi, Aditya
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Aleman, I.
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Auchettl, Rebecc ...
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Baratta, Giusepp ...
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Bejaoui, Salma
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Bera, Partha P.
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Black, John H, 1 ...
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Boulanger, F.
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Bouwman, Jordy
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Brandl, B. R.
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Brechignac, Phil ...
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Brünken, S.
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Buragohain, Mrid ...
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Burkhardt, Andre ...
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Candian, Alessan ...
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Cazaux, S.
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Cernicharo, Jose
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Chabot, Marin
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Chakraborty, Shu ...
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Champion, Jason
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Cooke, Ilsa R.
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Coutens, A.
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Cox, N. L. J.
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Demyk, K.
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Meyer, Jennifer ...
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Foschino, Sacha
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Garcia-Lario, P.
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Gerin, M.
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Gottlieb, C. A.
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Guillard, P.
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Gusdorf, Antoine
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Hartigan, Patric ...
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Herbst, E
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Hornekaer, Liv
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Issa, Lina
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Jäger, Cornelia
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Janot-Pacheco, E ...
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Kannavou, Olga
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Kaufman, M.
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Kemper, F.
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Kendrew, S.
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Kirsanova, M. S.
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Klaassen, Pamela
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Kwok, Sun
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Labiano, A.
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Lai, Thomas
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Le Floch, Bertra ...
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Le Petit, Franck ...
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Li, Aigen
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Linz, H.
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MacKie, Cameron ...
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Madden, S. C.
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Mascetti, Joëlle
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McGuire, Brett
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Merino, Pablo
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Micelotta, Elisa ...
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Morse, Jon A.
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Mulas, Giacomo
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Neelamkodan, Nas ...
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Ohsawa, Ryou
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Omont, A.A.
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Paladini, R.
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Palumbo, Maria E ...
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Pathak, Amit
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Pendleton, Yvonn ...
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Petrignani, Anne ...
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Pino, Thomas
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Puga, E.
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Rangwala, Naseem
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Rapacioli, Mathi ...
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Rho, J.
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Ricca, Alessandr ...
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Roman-Duval, J.
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Roser, Joseph
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Roueff, Evelyne
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Salama, Farid
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Sales, Dinalva A ...
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Sandstrom, Karin
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Sarre, Peter
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Sciamma-O'Brien, ...
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Sellgren, Kris
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Shenoy, Sachinde ...
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Teyssier, D.
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Thomas, Richard ...
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Witt, Adolf N.
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Wootten, A.
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Ysard, Nathalie
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Zettergren, H.
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Zhang, Yong
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Zhang, Ziwei E.
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Zhen, Junfeng
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Chalmers University of Technology