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A High Resolution HI Survey of M31

Published online by Cambridge University Press:  04 August 2017

E. Brinks
E. Brinks*
Affiliation:
Leiden Observatory, Leiden, The Netherlands

Extract

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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″ × 36″ × 3.2 km s−1. The spatial resolution corresponds to 30 × 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).

Type
I. Kinematics of Gas and the Underlying Mass Distribution
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 23 - 26
Copyright
Copyright © Reidel 1983 

References

Bajaja, E., Shane, W.W.: 1982, Astron. Astrophys. Suppl. Ser. 49, 745.Google Scholar
Cram, T.R., Roberts, M.S., Whitehurst, R.N.: 1980, Astron. Astrophys. Suppl. Ser. 40, 215.Google Scholar
Walterbos, R.A.M., Brinks, E., Shane, W.W.: in preparation.Google Scholar