Abstract
As an extreme kind of environment, Hickson Compact groups (HCGs) have shown to be very complex systems. HI-VLA observations revealed an intrincated network of HI tails and bridges, tracing pre-processing through extreme tidal interactions. We found HCGs to show a large HI deficiency supporting an evolutionary sequence where gas-rich groups transform via tidal interactions and ISM (interstellar medium) stripping into gas-poor systems. We detected as well a diffuse HI component in the groups, increasing with evolutionary phase, although with uncertain distribution. The complex net of detected HI as observed with the VLA seems hence so puzzling as the missing one. In this talk we revisit the existing VLA information on the HI distribution and kinematics of HCGs by means of X3D visualization. X3D constitutes a powerful tool to extract the most from HI data cubes and a mean of simplifying and easing the access to data visualization and publication via three-dimensional (3-D) diagrams.
Original language | English (US) |
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Pages (from-to) | 241-243 |
Number of pages | 3 |
Journal | Proceedings of the International Astronomical Union |
Volume | 11 |
Issue number | S321 |
DOIs | |
State | Published - Mar 1 2016 |
Externally published | Yes |
Keywords
- Galaxies
- compact groups
- galaxy evolution
- visualization
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science