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The Study of Barred Spiral Galaxies with Integral-Field Units

Published online by Cambridge University Press:  05 December 2011

Carmelle Robert
Affiliation:
Université Laval & CRAQ, Québec, QC, G1V 0A6, Canada, email: carobert@phy.ulaval.ca
Simon Cantin
Affiliation:
Université Laval & CRAQ, Québec, QC, G1V 0A6, Canada, email: carobert@phy.ulaval.ca
Élaine Brière
Affiliation:
Université Laval & CRAQ, Québec, QC, G1V 0A6, Canada, email: carobert@phy.ulaval.ca Royal Military College, Kingston, ON, K7K 7B4, Canada
Laurie Rousseau-Nepton
Affiliation:
Université Laval & CRAQ, Québec, QC, G1V 0A6, Canada, email: carobert@phy.ulaval.ca
Laurent Drissen
Affiliation:
Université Laval & CRAQ, Québec, QC, G1V 0A6, Canada, email: carobert@phy.ulaval.ca
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Abstract

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Integral-Field Units have been used to describe the morphology in numerous continuum and line wavebands of a sample of barred spirals galaxies (some of which known as starbursts and LINERs) and to characterize their gas and stellar populations. The central region of eight galaxies was studied with OASIS and an iterative technique developed to separate superposed stellar populations. Young populations, responsible for nebular emission lines, are found in nuclear structures. Older stellar components are mostly uniformly distributed. The mass distribution of the different populations indicates a long sequence of burst events over the whole galaxy history. An activity of the type composite/transition region is often seen over the whole central region. SpIOMM was also used to map the emission lines over the entire disk of one of these galaxies. Among other results, it confirms the peculiar line ratio.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

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