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Vertical surface brightness profiles of boxy bulges

Published online by Cambridge University Press:  01 July 2007

G. Aronica ,
M. Bureau ,
E. Athanassoula  and
R. -J. Dettmar
G. Aronica
Affiliation:
Astronomisches Institut der Ruhr-Universität Bochum, Bochum, D-44780, Germany email: [email protected]
M. Bureau
Affiliation:
Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford, OX1 3RH, UK
E. Athanassoula
Affiliation:
Laboratoire d'Astrophysique de Marseille, 2 place Le Verrier, 13248 Marseille Cedex 4, France
R. -J. Dettmar
Affiliation:
Astronomisches Institut der Ruhr-Universität Bochum, Bochum, D-44780, Germany email: [email protected]
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Abstract

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The thickening of the bar in barred disk galaxies has a strong influence in shaping the morphology in the inner regions of a disk galaxy above the galactic plane. The result of such a secular evolutionary process can be observed in galaxies with box/peanut shaped (b/ps) bulges. We have applied a one–dimensional fitting method to our sample of 30 edge–on disk galaxies using different fitting function approaches. A clear increase in scale height can be observed in the area of the most prominent b/ps isophotes compared to the neighbouring disk and bulge areas, in agreement with the predictions of the bar thickening model.

Keywords

infrared: galaxiesmethods: data analysisgalaxies: photometrygalaxies: evolutiongalaxies: structuregalaxies: spiralgalaxies: bulgesinstabilities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 129 - 130
Copyright
Copyright © International Astronomical Union 2008

References

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