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Bidimensional Fourier Analysis of a OSUBSGS Spiral Galaxies Sample

Published online by Cambridge University Press:  01 August 2006

Ivânio Puerari ,
Margarita Valdez-Gutiérrez  and
Izbeth Hernández-López
Ivânio Puerari
Affiliation:
INAOE, Mexico
Margarita Valdez-Gutiérrez
Affiliation:
Instituto de Astronomía—Universidad Nacional Autónoma de México, campus Ensenada, B. C., Mexico
Izbeth Hernández-López
Affiliation:
INAOE, Mexico
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Abstract

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By using bidimensional Fourier techniques, we have analyzed H (1.6μm) images of a sample of 48 spiral galaxies taken from the OSUBSGS. We found that two-armed spirals (m = 2) are the more important structures in the sample, but some galaxies present higher m = 1 (lopsided) or m = 3 (three armed spirals). A weak correlation between m = 2 pitch angles and Eskridge et al. (2002) classification is also evident, but there is no correlation at all between those angles and RC3 classification or Elmegreen arm class.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 130
Copyright
Copyright © International Astronomical Union 2007

References

References:

de Vaucouleurs, 1991, Third Reference Catalogue of Bright Galaxies (RC3), New York: Springer; Elmegreen, D.M., Elmegreen, B.G. 1987, ApJ 314, 3; Eskridge, P.B., et al. 2002, ApJS 143, 73Google Scholar