| Issue |
A&A
Volume 390, Number 3, August II 2002
|
|
|---|---|---|
| Page(s) | 817 - 820 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20020764 | |
| Published online | 14 August 2002 | |
Research Note
Deprojection of luminosity functions of galaxies in the Coma cluster
Kapteyn Astronomical Institute, PO Box 800, 9700 AV Groningen, The Netherlands
Corresponding author: M. Beijersbergen, beijersb@astro.rug.nl
Received:
7
February
2002
Accepted:
15
May
2002
We use a simple analytic model to deproject 2-d
luminosity functions (LF) of galaxies in the Coma cluster measured by Beijersbergen et al.
[CITE]. We demonstrate that the shapes of the LFs
change after deprojection. It is therefore essential to correct LFs
for projection effects. The deprojected LFs of the central area have best-fitting Schechter
parameters of 
and
, 
and
and 
and 
. The corrections are not significant enough to change the
previously observed trend of increasing faint end slopes with increasing distance to the cluster center. The weighted U, B, and r band slopes of the deprojected LFs show a slightly weaker steepening with increasing projected cluster
radius.
Key words: galaxies: clusters: individual: Coma (A1656) / galaxies: luminosity function / galaxies: evolution / galaxies: formation
© ESO, 2002
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