Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.200..391c&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 200, p. 391-406 (1982)
Astronomy and Astrophysics
Astronomy
18
Scientific paper
The region O2h l6m < α (195O) < O3h l2m, 0° < δ (1950) < 14° surrounding the Cohen & Davies complex of high-velocity clouds has been surveyed in the 21-cm line of HI using the Jodrell Bank MK II radio telescope (beamwidth 31 x 34 arcmin). The high-velocity cloud complex was sampled every 2m in right ascension and every 0°.5 in declination. The observations cover a velocity range of 2100 km s-1 with a resolution of 7.3 km s-1 and an rms noise level of 0.025 K. No HVCs were found outside the velocity range -400 to +100 km s-1. The data are presented on microfiche as a set of contour maps showing 21-cm line temperature as a function of declination and radial velocity at constant values of right ascension. Discussion is centred on the very-high-velocity clouds at velocities of -360 to - 190 km s-1. It is concluded that they are probably debris from the tidal interaction between our Galaxy and the Magellanic Clouds.
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