GASKAP -- The Galactic ASKAP Survey
Abstract
A survey of the Milky Way disk and the Magellanic System at the wavelengths of the 21-cm atomic hydrogen (HI) line and three 18-cm lines of the OH molecule will be carried out with the Australian Square Kilometre Array Pathfinder telescope. The survey will study the distribution of HI emission and absorption with unprecedented angular and velocity resolution, as well as molecular line thermal emission, absorption, and maser lines. The area to be covered includes the Galactic plane (|b|< 10deg) at all declinations south of delta = +40deg, spanning longitudes 167deg through 360deg to 79deg at b=0deg, plus the entire area of the Magellanic Stream and Clouds, a total of 13,020 square degrees. The brightness temperature sensitivity will be very good, typically sigma_T ~ 1 K at resolution 30arcsec and 1 km/s. The survey has a wide spectrum of scientific goals, from studies of galaxy evolution to star formation, with particular contributions to understanding stellar wind kinematics, the thermal phases of the interstellar medium, the interaction between gas in the disk and halo, and the dynamical and thermal states of gas at various positions along the Magellanic Stream.
Cite
@article{arxiv.1207.0891,
title = {GASKAP -- The Galactic ASKAP Survey},
author = {J. M. Dickey and N. McClure-Griffiths and S. J. Gibson and J. F. Gomez and H. Imai and P. Jones and S. Stanimirovic and J. Th. van Loon and A. Walsh and A. Alberdi and G. Anglada and L. Uscanga and H. Arce and M. Bailey and A. Begum and B. Wakker and N. Ben Bekhti and P. Kalberla and B. Winkel and K. Bekki and B. -Q. For and L. Staveley-Smith and T. Westmeier and M. Burton and M. Cunningham and J. Dawson and S. Ellingsen and P. Diamond and J. A. Green and A. S. Hill and B. Koribalski and D. McConnell and J. Rathborne and M. Voronkov and K. A. Douglas and J. English and H. A. Ford and T. Foster and Y. Gomez and A. Green and J. Bland-Hawthorn and S. Gulyaev and M. Hoare and G. Joncas and J-H. Kang and C. R. Kerton and B-C. Koo and D. Leahy and N. Lo and F. J. Lockman and V. Migenes and J. Nakashima and Y. Zhang and D. Nidever and J. E. G. Peek and D. Tafoya and W. Tian and D. Wu},
journal= {arXiv preprint arXiv:1207.0891},
year = {2015}
}
Comments
45 pages, 8 figures, Pub. Astron. Soc. Australia (in press)