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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/58558
- Photometric and spectroscopic dissection of E A galaxies with GMOS
- Couch, Warrick; Pracy, Michael; Blake, Chris; Bekki, Kenji; Kuntschner, Harald; Burgmann, Marcel; Turner, James
- The characteristic E A galaxy spectrum - strong Balmer-line absorption superimposed upon an elliptical galaxy spectrum - is a signpost to galaxies in the process of transformation. Such a spectrum implies the existence of a young stellar population but the absence of ongoing star formation: a recently truncated starburst. E A galaxies hence represent an important stage in the evolution of galaxies, and yet their formation mechanism as a function of environment remains uncertain. To elucidate this mechanism we have obtained high resolution multi-band imaging and spatially resolved IFU spectroscopy with GMOS of a sample of bright, low-redshift E A galaxies selected from the 2dF Galaxy Redshift Survey. This talk will present the results of these observations, showing how spatially the resolved star-formation histories and internal 2D-kinematics provided by GMOS are able to discriminate between competing E A galaxy formation models.
- Publication type
- Conference paper
- Research centre
- Swinburne University of Technology.
- Paper presented at the 2nd Conference on Gemini Science Results, Science Meeting, Foz do Iguacu, Brazil, 11-13 June 2007
- Publication year
- Balmer-line absorption; Elliptical galaxies; Galaxy evolution; Star formation
- Gemini Observatory
- Publisher URL
- Copyright © 2007.
- Peer reviewed