| Issue |
A&A
Volume 397, Number 2, January II 2003
|
|
|---|---|---|
| Page(s) | 421 - 430 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20021553 | |
| Published online | 17 December 2002 | |
The r'-band luminosity function of Abell 1367: A comparison with Coma*
1
Laboratoire d'Astrophysique de Marseille, BP8, Traverse du Siphon, 13376 Marseille, France e-mail: jorge.iglesias@astrsp-mrs.fr,alessandro.boselli@astrsp-mrs.fr
2
Universitá degli Studi di Milano, Bicocca, Piazza delle Scienze, 3, 20126 Milano, Italy e-mail: gavazzi@mib.infn.it,luca.cortese@mib.infn.it
3
Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080 Granada, Spain e-mail: jvm@iaa.es
Corresponding author: J. Iglesias-Páramo, jorge.iglesias@astrsp-mrs.fr
Received:
4
June
2002
Accepted:
10
October
2002
We made a large (approximately 
)
r'-band imaging survey of the central regions of the two nearby clusters of
galaxies, Abell 1367 and Coma. The data, presented as a catalog, are used to
construct the r'-band luminosity function (LF) of galaxies in these
two clusters, by subtracting the Yasuda et al. ([CITE]) galaxy
counts from our cluster counts.
Our Coma luminosity function is consistent with previous determinations,
i.e. providing a faint end slope 
,
significantly steeper than
the one we find for Abell 1367 (
).
The counts in Abell 1367 show a relative minimum at 
, followed by a steep
increase faintward.
The difference between the two clusters appears significant, given the consistency of
the experimental conditions in the two clusters.
Whereas for Coma we find a significant increase
of the slope of the LF outwards, no
such effect is found for Abell 1367.
Key words: atlases / galaxies: general / galaxies: clusters: general
© ESO, 2003
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