Explosive Disintegration of a Massive Young Stellar System in Orion

Abstract

Young massive stars in the center of crowded star clusters are expected to undergo close dynamical encounters that could lead to energetic, explosive events. However, there has so far never been clear observational evidence of such a remarkable phenomenon. We here report new interferometric observations made with the Submillimeter Array (SMA) that indicate the well known enigmatic wide-angle outflow located in the Orion BN/KL star-forming region to have been produced by such a violent explosion during the disruption of a massive young stellar system, and that this was caused by a close dynamical interaction about 500 years ago. This outflow thus belongs to a totally different family of molecular flows which is not related to the classical bipolar flows that are generated by stars during their formation process. Our molecular data allow us to create a 3D view of the debris flow and to link this directly to the well known Orion H${}_2$ "fingers" farther out

Accepted by ApJ Letters The 3D movie can be found in: ftp://ftp.mpifr-bonn.mpg.de/outgoing/lzapata/movie.gif

References in corpus (5)

• Monitoring the Large Proper Motions of Radio Sources in the Orion BN/KL Region
• Silicon Monoxide Observations Reveal a Cluster of Hidden Compact Outflows in the OMC1 South Region
• High Velocity Features in the Orion Nebula
• Identifying the outflow driving sources in Orion-KL
• Large Scale Flows from Orion-South

Cited by in corpus (88)

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• High-Angular Resolution Dust Polarization Measurements: Shaped B-field Lines in the Massive Star Forming Region Orion BN/KL
• Tearing the Veil: interaction of the Orion Nebula with its neutral environment
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• IRDC G030.88+00.13: A Tale of Two Massive Clumps
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• ALMA Observations of Orion Source I at 350 and 660 GHz
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• Complex Organic Molecules at High Spatial Resolution Toward Orion-KL II: Kinematics
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• Gas velocity structure of the Orion A Integral Shaped Filament
• ALMA Images of the Orion Hot Core at 349 GHz
• OMC-1 dust polarisation in ALMA Band 7: Diagnosing grain alignment mechanisms in the vicinity of Orion Source I
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• A study of dynamical processes in the Orion KL region using ALMA-- Probing molecular outflow and inflow
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