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Compression and ablation of the photo-irradiated molecular cloud the Orion Bar

Author

Listed:
  • Javier R. Goicoechea

    (Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid (CSIC), Calle Sor Juana Ines de la Cruz 3)

  • Jérôme Pety

    (Institut de Radioastronomie Millimétrique (IRAM), 300 rue de la Piscine
    Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères (LERMA), Observatoire de Paris, Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Rechersche (UMR) 8112, École Normale Supérieure, PSL Research University, 24 rue Lhomond)

  • Sara Cuadrado

    (Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid (CSIC), Calle Sor Juana Ines de la Cruz 3)

  • José Cernicharo

    (Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid (CSIC), Calle Sor Juana Ines de la Cruz 3)

  • Edwige Chapillon

    (Institut de Radioastronomie Millimétrique (IRAM), 300 rue de la Piscine
    Laboratoire d’Astrophysique de Bordeaux (LAB), Université de Bordeaux, UMR 5804
    CNRS, LAB, UMR 5804)

  • Asunción Fuente

    (Observatorio Astronómico Nacional (OAN-IGN). Apartado 112)

  • Maryvonne Gerin

    (Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères (LERMA), Observatoire de Paris, Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Rechersche (UMR) 8112, École Normale Supérieure, PSL Research University, 24 rue Lhomond
    Sorbonne Universités, Université Pierre et Marie Curie (UPMC), Université Paris 06)

  • Christine Joblin

    (Université de Toulouse, Université Paul-Sabatier-Observatoire Midi-Pyrénées (UPS-OMP), Institut de Recherche en Astrophysique et Planétologie (IRAP)
    CNRS, IRAP, 9 Avenue du Colonel Roche, BP 44346)

  • Nuria Marcelino

    (Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid (CSIC), Calle Sor Juana Ines de la Cruz 3)

  • Paolo Pilleri

    (Université de Toulouse, Université Paul-Sabatier-Observatoire Midi-Pyrénées (UPS-OMP), Institut de Recherche en Astrophysique et Planétologie (IRAP)
    CNRS, IRAP, 9 Avenue du Colonel Roche, BP 44346)

Abstract

One-arcsecond-resolution millimetre-wave images enable the surface of the Orion Bar molecular cloud to be resolved, revealing a fragmented ridge of high-density substructures, photoablative gas flows and instabilities that suggest that the cloud edge has been compressed by a high-pressure wave expanding into the molecular cloud, in contrast to predictions from static equilibrium models.

Suggested Citation

  • Javier R. Goicoechea & Jérôme Pety & Sara Cuadrado & José Cernicharo & Edwige Chapillon & Asunción Fuente & Maryvonne Gerin & Christine Joblin & Nuria Marcelino & Paolo Pilleri, 2016. "Compression and ablation of the photo-irradiated molecular cloud the Orion Bar," Nature, Nature, vol. 537(7619), pages 207-209, September.
    • Handle: RePEc:nat:nature:v:537:y:2016:i:7619:d:10.1038_nature18957
    DOI: 10.1038/nature18957
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