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Título: | IRAS 22198+6336: discovery of an intermediate-mass hot core |
Autor: | Sánchez-Monge, Álvaro CSIC ORCID; Palau, Aina CSIC ORCID; Estalella, Robert; Kurtz, Stan; Zhang, Qizhou; Di Francesco, James; Shepherd, Debra | Palabras clave: | ISM: individual objects (IRAS 22198+6336 ISM: lines and bands Radio continuum: ISM Stars: formation |
Fecha de publicación: | 1-oct-2010 | Editor: | Institute of Physics Publishing | Citación: | Astrophysical Journal. Letters 721 (2) : L107 (2010) | Resumen: | We present new SMA and PdBI 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 around 5 Msun 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 CH$_3$CN and CH$_3$OH (100-150 K) indicate that IRAS 22198+6336 is harbouring one the few intermediate-mass hot cores known at present. | Versión del editor: | http://dx.doi.org/10.1088/2041-8205/721/2/L107 | URI: | http://hdl.handle.net/10261/38818 | DOI: | 10.1088/2041-8205/721/2/L107 | ISSN: | 2041-8205 | E-ISSN: | 2041-8213 |
Aparece en las colecciones: | (ICE) Artículos |
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