Now showing items 1-3 of 3
A high resolution hydrogen line survey of Messier 31. II : The warped flaring hydrogen layer
Some of the global aspects of the H I distribution in M31 are discussed on the basis of the high-resolution survey of the 21-cm line made with the Westerbork Synthesis Radio Telescope by Brinks and Shane (1984). The ...
A high resolution radio continuum survey of Messier 31. I : Observations at 610 MHz, data reduction, and the 36W catalogue of radio sources
High resolution observations of M31 at 610 MHz (49.2 cm), made with the Westerbork Synthesis Radio Telescope, are described. The observations and reduction of three full synthesis fields which, after combination, cover M31 ...
A high resolution hydrogen line survey of Messier 31. I : Observations and data reduction
New observations with the Westerbork Synthesis Radio Telescope are presented of M31 in the 21 cm line of neutral atomic hydrogen. The observations and calibration are described, and the various stages of data reduction are ...