| Title | HI observations of loose galaxy groups. I. Data and global properties |
| Authors | van Driel, W.; Marcum, P.; Gallagher, J. S., III; Wilcots, E.; Guidoux, C.; Monnier Ragaigne, D. |
| Bibcode | 2001A&A...378..370V Search ADS ↗ |
| Abstract | At Nançay, 21-cm H I line observations were made of 15 spiral-dominated loose groups of galaxies, divided into two samples: an ``interacting'' sample containing at least one pair of interacting galaxies, and a ``control'' sample having no optical evidence of interactions or morphological disturbances among the group members. The interacting sample consists of 62 galaxies representing 9 different groups, and the control sample contains 40 galaxies representing 6 groups. Of the 91 galaxy and galaxy pairs observed, 74 were detected, while upper limits were placed on the remaining 17 objects. These homogeneous H I data, which will be used in future analyses, provide comparative information on the H I content of groups and serve as a probe of the vicinity of the target spirals for H I clouds or very low surface brightness gas-rich galaxies. |
| Objects | 133 Objects Search NED ↙ |
