| Issue |
A&A
Volume 379, Number 1, November III 2001
|
|
|---|---|---|
| Page(s) | 54 - 71 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20011275 | |
| Published online | 15 November 2001 | |
surface photometry of (S+S) binary galaxies*,**
I. The data
1
Instituto de Astronomía -UNAM -Apartado Postal 70-264, 04510 México DF, México
2
Instituto Nacional de Astrofísica, Optica y Electrónica, Calle Luis Enrique Erro 1, 72840 Tonantzintla, Puebla, México e-mail: puerari@inaoep.mx
Corresponding author: H. Hernández-Toledo, hector@astroscu.unam.mx
Received:
28
February
2001
Accepted:
21
August
2001
We present multicolour broad band (BVRI) photometry
for a sample of 33 spiral-spiral (S+S) binary galaxies drawn
from the Karachentsev Catalogue of Isolated Pairs of Galaxies
(KPG). The data is part of a joint observational programme
devoted to systematic photometric study of one of the most
complete and homogeneous pair samples available in the
literature. We present azimuthally averaged colour and surface
brightness profiles, colour index (
) maps, B band and
sharp/filtered B band images as well as integrated
magnitudes, magnitudes at different circular apertures
and integrated colours for each pair. Internal and external
data comparisons show consistency within the estimated
errors. Two thirds of the sample have total aperture
parameters homogeneously derived for the first time. After
reevaluating morphology for all the pairs, we find a change
in Hubble type for 24 galaxies compared to the original
POSS classifications. More than half of our pairs show
morphological concordance which could explain, in part,
the strong correlation in the (
) colour indices
(Holmberg Effect) between pair components. We find
a tendency for barred galaxies to show grand design
morphologies and flat colour profiles. The measurements
will be used in a series of forthcoming papers where we try
to identify and isolate the main structural and photometric
properties of disk galaxies at different stages of interaction.
Key words: galaxies: spiral / galaxies: structure / galaxies: photometry / galaxies: interactions / galaxies: fundamental parameters / galaxies: kinematics and dynamics
Table A.1 is only available in electronic form at the CDS via anonymous ftp cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/379/54 and Tables 2-4 are also available in electronic form at the CDS. Full Fig. 5 is only available in electronic form at the http://www.edpsciences.org
© ESO, 2001
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