MALT90: The Millimetre Astronomy Legacy Team 90 GHz Survey
- Author(s)
- J. M. Jackson, J. M. Rathborne, J. B. Foster, J. S. Whitaker, P. Sanhueza, C. Claysmith, J. L. Mascoop, M. Wienen, S. L. Breen, F. Herpin, A. Duarte-Cabral, T. Csengeri, S. N. Longmore, Y. Contreras, B. Indermuehle, P. J. Barnes, A. J. Walsh, Maria R. Cunningham, K. J. Brooks, T. R. Britton, M. A. Voronkov, J. S. Urquhart, J. Alves, C. H. Jordan, T. Hill, S. Hoq, S. C. Finn, I. Bains, S. Bontemps, L. Bronfman, J. L. Caswell, L. Deharveng, S. P. Ellingsen, G. A. Fuller, G. Garay, J. A. Green, L. Hindson, P. A. Jones, C. Lenfestey, N. Lo, V. Lowe, D. Mardones, K. M. Menten, V. Minier, L. K. Morgan, F. Motte, E. Muller, N. Peretto, C. R. Purcell, P. Schilke, Schneider-N. Bontemps, F. Schuller, A. Titmarsh, F. Wyrowski, A. Zavagno
- Abstract
The Millimetre Astronomy Legacy Team 90 GHz (MALT90) survey aims to
characterise the physical and chemical evolution of high-mass
star-forming clumps. Exploiting the unique broad frequency range and
on-the-fly mapping capabilities of the Australia Telescope National
Facility Mopra 22 m single-dish telescope, MALT90 has obtained 3' x 3'
maps toward ~2000 dense molecular clumps identified in the ATLASGAL 870
um Galactic plane survey. The clumps were selected to host the early
stages of high-mass star formation and to span the complete range in
their evolutionary states (from prestellar, to protostellar, and on to
HII regions and photodissociation regions). Because MALT90 mapped 16
lines simultaneously with excellent spatial (38") and spectral (0.11
km/s) resolution, the data reveal a wealth of information about the
clump's morphologies, chemistry, and kinematics. In this paper we
outline the survey strategy, observing mode, data reduction procedure,
and highlight some early science results. All MALT90 raw and processed
data products are available to the community. With its unprecedented
large sample of clumps, MALT90 is the largest survey of its type ever
conducted and an excellent resource for identifying interesting
candidates for high resolution studies with ALMA.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Macquarie University, Universität zu Köln, Max-Planck-Institut für Radioastronomie, Université Bordeaux, Joint ALMA Observatory, Boston University, University of Florida, Gainesville, University of New South Wales, Université Paris VII - Paris-Diderot, The University of Sydney, Yale University, European Southern Observatory (Germany), University of Manchester, Liverpool John Moores University (LJMU), Curtin University, University of Hertfordshire, Commonwealth Scientific and Industrial Research Organisation (CSIRO), University of Tasmania, New England College of Optometry, Boston, University of Victoria, Universidad de Chile, Aix-Marseille Université, National Astronomical Observatory of Japan, Cardiff University
- Journal
- Publications of the Astronomical Society of Australia
- Volume
- 30
- Pages
- 57
- No. of pages
- 13
- ISSN
- 1323-3580
- DOI
- https://doi.org/10.1017/pasa.2013.37
- Publication date
- 10-2013
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics, 103003 Astronomy
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/malt90-the-millimetre-astronomy-legacy-team-90-ghz-survey(6fd10111-a7da-484a-b807-6038ee9f13e3).html