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Large Gas Disks in Radiogalaxies
R. Morganti, T. A. Oosterloo, S. Tinti +3
Large-scale (up to 100 kpc) HI structures have been found in three radio galaxies using the WSRT and the VLA. In one case, the HI has been detected in emission while in the other t…
Extended HI disks in dust-lane elliptical galaxies
T. A. Oosterloo, R. Morganti, E. M. Sadler +2
We present the results of HI observations of five dust-lane ellipticals with the Australia Telescope Compact Array. Two galaxies (NGC 3108 and NGC 1947) are detected, and sensitive…
HIPASS High-Velocity Clouds: Properties of the Compact and Extended Populations
M. E. Putman, V. de Heij, L. Staveley-Smith +5
A catalog of Southern anomalous-velocity HI clouds at Decl. < +2 deg is presented, based on data from the HI Parkes All-Sky Survey (HIPASS). The improved sensitivity (5sigma: T_B =…
A new, kinematically anomalous HI component in the spiral galaxy NGC 2403
Filippo Fraternali, Tom Oosterloo, Renzo Sancisi +1
We discuss new, high sensitivity HI observations of the spiral galaxy NGC2403 which show extended emission at anomalous velocities with respect to the `cold' disk. This `anomalous'…
HI absorption from the central kpc of radio galaxies: effect of orientation or interstellar medium?
R. Morganti, T. A. Oosterloo, C. N. Tadhunter +6
We present a summary of recent studies of HI absorption in radio galaxies. The results show how the absorption can be due to a variety of phenomena and how they can help us in unde…
Emission line outflows in PKS1549-79: the effects of the early stages of radio source evolution?
C. Tadhunter, K. Wills, R. Morganti +2
We present new spectroscopic observations of the southern radio galaxy PKS1549-79 (z =0.152).Despite the flat spectrum character of the radio emission from this source, our optical…
HIPASS Detection of an Intergalactic Gas Cloud in the NGC 2442 Group
S. D. Ryder, B. Koribalski, L. Staveley-Smith +26
We report the discovery, from the HI Parkes All-Sky Survey (HIPASS), of a gas cloud associated with the asymmetric spiral galaxy NGC 2442. This object, designated HIPASS J0731-69,…