HI observations of binary spiral galaxies.
Abstract
Observations in the 21 cm line of neutral hydrogen made with the Arecibo- and the Westerbork radio telescopes are presented of a sample of binary spiral galaxies. Completed with optical information, these observations are used to determine the spatial orientation of the spin-vectors of the galaxies and to estimate their systemic- and rotation velocities. These data are used in an accompanying paper to study the angular momentum properties of binary spiral galaxies in the context of galaxy formation.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- June 1993
- Bibcode:
- 1993A&AS...99..379O
- Keywords:
-
- Galactic Evolution;
- Galactic Structure;
- Interacting Galaxies;
- Spiral Galaxies;
- Angular Momentum;
- Galactic Rotation;
- H Lines;
- Radio Telescopes;
- Astrophysics