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IRAS 22198 6336: Discovery of an Intermediate-mass Hot Core

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Abstract

  • We present new Submillimeter Array and Plateau de Bure Interferometer observations of the intermediate-mass object IRAS 22198 6336 in the millimeter continuum and in several molecular line transitions. The millimeter continuum emission reveals a strong and compact source with a mass of ~5 M sun and with properties of Class 0 objects. CO emission shows an outflow with a quadrupolar morphology centered on the position of the dust condensation. The CO outflow emission seems to come from two distinct outflows, one of them associated with SiO outflow emission. A large set of molecular lines has been detected toward a compact dense core clearly coincident with the compact millimeter source, and showing a velocity gradient perpendicular to the outflow traced by CO and SiO. The chemically rich spectrum and the rotational temperatures derived from CH3CN and CH3OH (100-150

Publication Date

  • 2010

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