Issue |
A&A
Volume 415, Number 3, March I 2004
|
|
---|---|---|
Page(s) | 849 - 861 | |
Section | Extragalactic astronomy | |
DOI | https://doi.org/10.1051/0004-6361:20034186 | |
Published online | 13 February 2004 |
Deprojecting spiral galaxies using Fourier analysis. Application to the Frei sample*
1
D.E.I.M., Campus Sescelades, Avd. dels Països Catalans 26, 43007 Tarragona, Spain
2
Observatoire de Marseille, 2 Place Le Verier, 13248 Marseille cedex 04, France
Corresponding author: C. Barberà, cbarbera@etse.urv.es
Received:
12
August
2003
Accepted:
30
September
2003
We present two methods that can be used to deproject spirals, based on
Fourier analysis of their images, and discuss their potential and
restrictions. Our methods perform particularly
well for galaxies more inclined than or for non-barred galaxies
more inclined than
. They are fast and straightforward to use, and
thus ideal for large samples of galaxies. Moreover, they are very robust
for low resolutions and thus are appropriate for
samples of cosmological interest. The relevant software is
available from us upon request.
We use these methods to determine the values of the position and
inclination angles for
a sample of 79 spiral galaxies contained in the Frei et al.
([CITE]) sample.
We compare our
results with the values found in the literature, based on other
methods. We find statistically very good agreement
Key words: galaxies: structure / galaxies: spiral
© ESO, 2004
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