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- Mg II absorbing galaxies: morphologies and kinematics
- Churchill, Chris; Steidel, Chuck; Kacprzak, Glenn
- In this contribution, we review our current knowledge of the properties of galaxies, and their extended halos, selected by Mg II absorption in the spectra of background quasars. We then describe recent efforts to quantify the morphologies and orientations of galaxies and explore how these relate to the gas kinematics. In a sample of 26 galaxies, we find no clear connection between the orientation of the quasar line of sight through the galaxy and the velocity spread of the gas. However, it appears that the quantity of gas "stirred up" in the halo may be correlated to asymmetry in the galaxy morphology. Since the galaxies have fairly normal morphologies, this connection may suggest that galaxies with extended halos experienced an interaction or merging event a few dynamical times prior to the epoch of observation.
- Publication type
- Conference paper
- Proceedings of the Astronomical Society of the Pacific Conference: Extra-Planar Gas, Dwingeloo, the Netherlands, 07-11 June 2004, pp. 387-394
- Publication year
- Galaxies; Galaxy morphologies; Gas kinematics; Halos; MgII absorptions
- Astronomical Society of the Pacific
- Publisher URL
- Copyright © 2004 Astronomical Society of the Pacific. The published version is reproduced with the kind permission of the publisher.
- Full text
- Peer reviewed