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Journal Articles Astronomy and Astrophysics - A&A Year : 2004

VLT/NACO infrared adaptive optics images of small scale structures in OMC1

Abstract

Near-infrared observations of line emission from excited H 2 and in the continuum are reported in the direction of the Orion molecular cloud OMC1 , using the European Southern Observatory Very Large Telescope UT4 , equipped with the NAOS adaptive optics system on the CONICA infrared array camera. Spatial resolution has been achieved at close to the diffraction limit of the telescope (0. 08 −0. 12) and images show a wealth of morphological detail. Structure is not fractal but shows two preferred scale sizes of 2. (1100 AU) and 1. 2 (540 AU) , where the larger scale may be associated with star formation. Key words. ISM : individual objects : OMC1 – ISM : circumstellar matter – ISM : kinematics and dynamics – ISM : molecules – infrared : ISM
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Dates and versions

hal-00000915 , version 1 (03-12-2003)
hal-00000915 , version 2 (30-10-2015)

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F Lacombe, E Gendron, D Rouan, Y Clénet, D Field, et al.. VLT/NACO infrared adaptive optics images of small scale structures in OMC1. Astronomy and Astrophysics - A&A, 2004, 417 (1), pp.L5-L9. ⟨10.1051/0004-6361:20040030⟩. ⟨hal-00000915v2⟩
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