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An excitation study of bow shocks driven from protostars in S233IR

Khanzadyan, T., Smith, M.D., Davis, C.J., Stanke, T. (2004) An excitation study of bow shocks driven from protostars in S233IR. Astronomy and Astrophysics, 418 (1). pp. 163-176. ISSN 0004-6361. (doi:10.1051/0004-6361:20034176) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1051/0004-6361:20034176

Abstract

We present narrow-band near-infrared images of the high-mass star formation region S233IR. We detect several groups of molecular hydrogen knots aligned with known outflows. Images in vibrationally-excited H2 and [Fe II] reveal the excitation distributions across the main two conspicuous bow shocks. Emission from the [Fe II] line is strong and located at the apex of both bow shocks as well as other locations within the northern bow where we distinguish a compact Mach disk through its [Fell] emission. The H2 emission is not restricted to the bow wings but distinct components are detected near the bow apices. The data are broadly comparable to steady bow shocks of speed 60-80 km s-1 possessing dissociative caps and C-type flanks. Nevertheless, non-steady bow shock behavior is essential to interpret all aspects of the bow structures. In this respect, the S233 bow caps may be in the neutral transformation stage from J-type to C-type.

Item Type: Article
DOI/Identification number: 10.1051/0004-6361:20034176
Uncontrolled keywords: Infrared: ISM, ISM: clouds, ISM: jets and outflows, Stars: formation
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Giles Tarver
Date Deposited: 11 Aug 2015 09:42 UTC
Last Modified: 29 May 2019 15:54 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50121 (The current URI for this page, for reference purposes)
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