Arcsecond Scale Kinematic and Chemical Complexity in Cepheus A-East

Abstract

We present results from SMA observations of the star forming region Cepheus A-East at ~340 GHz (875 micron) with 0.7'' - 2'' resolution. At least four compact submm continuum sources have been detected, as well as a rich forest of hot core line emission. Two kinematically, chemically, and thermally distinct regions of molecular emission are present in the vicinity of the HW2 thermal jet, both spatially distinct from the submm counterpart to HW2. We propose that this emission is indicative of multiple protostars rather than a massive disk as reported by Patel et al. (2005).

4 pages, Figures 1 and 3 are in color, latex uses emulateapj.sty. Accepted to ApJ Letters. Figures 1 and 3 have been degraded; higher quality figures available at http://www.cv.nrao.edu/~cbrogan/CepA/

References in corpus (2)

• Resolving and probing the circumstellar disk of the Herbig Ae star MWC 480 at 1.4 mm: Evolved dust?
• First evidence for molecular interfaces between outflows and ambient cloud in high-mass star forming regions?

Cited by in corpus (8)

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• A Photoevaporating Rotating Disk in the Cepheus A HW2 Star Cluster
• Chemical Diversity in High-Mass Star Formation
• Evidence for a Massive Protocluster in S255N
• The Circumstellar Structure and Excitation Effects around the Massive Protostar Cepheus A HW 2
• ATCA 3mm observations of NGC6334I and I(N): dense cores, outflows and an UCHII region
• High-resolution study of a star-forming cluster in the Cep-A HW2 region
• The Variable Reflection Nebula Cepheus A East