Abstract
The first results of a new high resolution 21-cm HI line survey of M31 made with the Westerbork Synthesis Radio Telescope are presented. Five areas were mapped, covering the galaxy except for the extreme northern and southern parts, at a resolution of Δα × Δδ × ΔV = 24#x2033; × 36″ × 3.2 km s-1. The spatial resolution corresponds to 30 x 120 pc at the distance of M31. This is of the same order as the resolution at the distance of the center or our own galaxy given by a 25-m dish. Consequently the M31 survey is comparable to surveys of the Milky Way galaxy in wealth of detail as well as in amount of data (∿ 1 Gigabyte).
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References
Bajaja, E. Shane, W.W. 1932, Astron. Astrophys. Suppl. Ser. 49, 745
Cram, T.R. Roberts, M.S. Whitehurst, R.N. 1930, Astron. Astrophys. Suppl. Ser. 40, 215
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© 1983 International Astronomical Union
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Brinks, E. (1983). A High Resolution HI Survey of M31. In: Athanassoula, E. (eds) Internal Kinematics and Dynamics of Galaxies. International Astronomical Union/Union Astronomique Internationale, vol 100. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7075-5_3
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DOI: https://doi.org/10.1007/978-94-009-7075-5_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-277-1547-0
Online ISBN: 978-94-009-7075-5
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