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High-resolution observations of CH3CN in the hot corino of NGC1333-IRAS4A

  • Sandrine Bottinelli (a1) (a2) (a3), Cecilia Ceccarelli (a1) (a3), Roberto Neri (a4) and Jonathan P. Williams (a2) (a3)
  • DOI: http://dx.doi.org/10.1017/S1743921308021303
  • Published online: 01 February 2008
Abstract
Abstract

The formation and evolution of complex organic molecules in the early stages of solar-type protostars (Class 0 objects) is crucial as it sets the stage for the content in pre-biotic molecules of the subsequent proto-planetary nebula. In order to understand the chemistry of these Class 0 objects, it is necessary to perform interferometric observations which allow us to resolve the hot corino, that is the warm, dense inner region of the envelope of a Class 0 object, where the complex organic molecules are located. Such observations exist for only two objects so far, IRAS16293-2422 and NGC1333-IRAS2A and we present here Plateau de Bure interferometric maps of a third hot corino, NGC1333-IRAS4A, which show emission of the complex organic molecule CH3CN arising from a region of size ~0.8″/175 AU, that is, of the order of the size of the Solar System. Combining these high-angular resolution maps with prior single-dish observations of the same transitions of CH3CN indicates that extended emission is also present, and we investigate the implications for organic chemistry in hot corinos.

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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

S. Bottinelli , C. Ceccarelli , J. P. Williams & B. Lefloch 2007, A&A, 463, 601

S. Bottinelli , C. Ceccarelli , B. Lefloch , J. P. Williams , 2004a, ApJ, 615, 354

S. Bottinelli , C. Ceccarelli , R. Neri , J. P. Williams , 2004b, ApJ (Letters) 617, L69

S. Cazaux , A. G. G. M. Tielens , C. Ceccarelli , A. Castets , 2003, ApJ (Letters), 593, L51

J. K. Jørgensen , F. L. Schöier , & E. F. van Dishoeck 2002, A&A, 389, 908

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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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