Journal Article

The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP

S. F. Graves, J. S. Richer, J. V. Buckle, A. Duarte-Cabral, G. A. Fuller, M. R. Hogerheijde, J. E. Owen, C. Brunt, H. M. Butner, B. Cavanagh, A. Chrysostomou, E. I. Curtis, C. J. Davis, M. Etxaluze, J. Di Francesco, P. Friberg, R. K. Friesen, J. S. Greaves, J. Hatchell, D. Johnstone, B. Matthews, H. Matthews, C. D. Matzner, D. Nutter, J. M. C. Rawlings, J. F. Roberts, S. Sadavoy, R. J. Simpson, N. F. H. Tothill, Y. G. Tsamis, S. Viti, D. Ward-Thompson, G. J. White, J. G. A. Wouterloot and J. Yates

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 409, issue 4, pages 1412-1428
Published in print December 2010 | ISSN: 0035-8711
Published online December 2010 | e-ISSN: 1365-2966 | DOI:
The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP

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The Gould Belt Legacy Survey on the James Clerk Maxwell Telescope's has observed a region of 260 arcmin2 in 12CO J= 3 → 2 emission, and a 190 arcmin2 subset of this in 13CO and C18O towards the Serpens molecular cloud. We examine the global velocity structure of the non-outflowing gas, and calculate excitation temperatures and opacities. The large-scale mass and energetics of the region are evaluated, with special consideration for high-velocity gas. We find the cloud to have a mass of 203 M, and to be gravitationally bound, and that the kinetic energy of the outflowing gas is approximately 70 per cent of the turbulent kinetic energy of the cloud. We identify compact outflows towards some of the submillimetre Class 0/I sources in the region.

Keywords: molecular data; stars: formation; ISM: jets and outflows; ISM: kinematics and dynamics; submillimetre: ISM

Journal Article.  9594 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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