AN H I SURVEY OF SIX LOCAL GROUP ANALOGS. II. H I PROPERTIES OF GROUP GALAXIES

Survey of Six Local Group Analogs: I. Survey Description and the Search for High-velocity Clouds

We have conducted an H I 21 cm emission-line survey using the Parkes 20cm multibeam instrument and the Australia Telescope Compact Array (ATCA) of six loose groups of galaxies chosen to be analogs to the Local Group. The goal of this survey is to make a census of the H I-rich galaxies and high-velocity clouds (HVCs) within these groups and compare these populations with those in the Local Group...

The H i content of the Eridanus group of galaxies

The H i content of galaxies in the Eridanus group is studied using the GMRT observations and the HIPASS data. A significant H i deficiency up to a factor of 2 − 3 is observed in galaxies in the high galaxy density regions. The H i deficiency in galaxies is observed to be directly correlated with the local projected galaxy density, and inversely correlated with the line-of-sight radial velocity....

GMRT H i observations of the Eridanus group of galaxies

The WSRT wide - field H survey II . Local Group features ⋆

We have used the Westerbork array to carry out an unbiased wide-field survey of H  emission features, achieving an  sensitivity of about 18 mJy/Beam at a velocity resolution of 17 km s−1 over 1800 deg2 and between −1000 < VHel < + 6500 km s−1. The primary data consists of auto-correlation spectra with an effective angular resolution of 49 FWHM. The survey region is centered approximately on...

H i Mapping of Galaxies in six GEMS Groups

Here we present Australia Telescope Compact Array H i maps of 16 H i sources in six Group Evolution Multiwavelength Study (GEMS) groups that were previously observed with the Parkes telescope. The higher spatial resolution of the ATCA allows us to clearly identify the optical counterparts for the first time – most being associated with low surface brightness late-type galaxies. New integrated H...