Evolution of the Structure of the H2O Supermaser Outburst Region in Orion KL

L. I. Matveyenko, K. M. Zhakharin, P. J. Diamond, D. A. Gram

    Research output: Contribution to journalArticlepeer-review

    Abstract

    During the period 1979-1999, we investigated the hyperfine structure of the H2O supermaser region located in the core of the molecular cloud OMC-1 in Orion KL. The angular resolution is 0.1 mas, which corresponds to 0. 045 AU. The detected structure, which consists of a central object, an accretion disk, a bipolar outflow, and an envelope, corresponds to the initial formation stage of a low-mass star. The accretion disk is at the stage of separation into groups of concentric rings. The bipolar outflow is a neutral, highly collimated jet of accreted material that includes H2O molecules and dust grains in the icy envelope. The injector is a bright compact source with a size
    Original languageEnglish
    Pages (from-to)100-116
    Number of pages16
    JournalAstronomy Letters
    Volume30
    Issue number2
    DOIs
    Publication statusPublished - Feb 2004

    Keywords

    • Gaseous nebulae
    • Interstellar medium

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