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Interferometric Observations of Chemistry in High-Mass Star-Forming Regions

Published online by Cambridge University Press:  25 May 2016

Peter Schilke ,
Karl M. Menten ,
Friedrich Wyrowski  and
C. M. Walmsley
Peter Schilke
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Karl M. Menten
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Friedrich Wyrowski
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD 20742-2421, USA
C. M. Walmsley
Affiliation:
Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy

Abstract

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Single dish spectral line surveys of high mass star-forming regions provide spectra with a very high line density, and reveal the presence of many complex molecules. Besides the prototypical Orion BN/KL region, more and more regions get surveyed and we start to get a better idea of the chemical similarities and differences. Yet, single dish studies miss an important aspect of hot cores, which is revealed by higher resolution studies with interferometers: the cores are not chemically homogeneous, but a pronounced chemical substructure exists. As an example of such an interferometric study, we will present one particular set of objects, the UC HII W3(OH) and its neighboring hot core W3(H2O) (otherwise known as the Turner-Welch object), and discuss their chemical properties.

Type
Part 2. Chemistry in High-Mass Star-Forming Regions
Information
Symposium - International Astronomical Union , Volume 197: Astrochemistry: From Molecular Clouds to Planetary Systems , 2000 , pp. 125 - 133
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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