Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/54058

Title

Molecular line mapping of the giant molecular cloud associated with RCW 106-III: multimolecular line mapping

Author(s)

Lo, Nadia;  Cunningham, Maria R.;  Jones, Paul A.;  Bains, I.;  Burton, M. G.;  Wong, T.;  Muller, Erik;  Kramer, Carsten;  Ossenkopf, V.;  Henkel, Christian;  Deragopian, G.;  Donnelly, S.;  Ladd, E. F.

Abstract

We present multimolecular line maps obtained with the Mopra telescope towards the southern giant molecular cloud (GMC) complex G333, associated with the H II region RCW 106. We have characterized the GMC by decomposing the 3D data cubes with GAUSSCLUMPS, and investigated spatial correlations among different molecules with principal component analysis (PCA). We find no correlation between clump size and linewidth, but a strong correlation between emission luminosity and linewidth. PCA classifies molecules into high- and low-density tracers, and reveals that HCO+ and N2H+ are anticorrelated.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing

Source

Monthly Notices of the Royal Astronomical Society, Vol. 395, no. 2 (May 2009), pp. 1021-1042

Publication year

2009

FOR Code(s)

0201 Astronomical and Space Sciences

Keyword(s)

Clouds;  Forming region G333.6-0.2;  Galactic plane survey;  ISM;  ISM lines;  Milky-way;  Molecules;  Stars formation;  Structure;  Water masers

Publisher

Wiley-Blackwell Publishing

ISSN

0035-8711

Publisher URL

http://dx.doi.org/10.1111/j.1365-2966.2009.14594.x

Copyright

Copyright © 2009 The Authors. Journal compilation copyright © 2009 RAS.

Peer reviewed