2002A&A...390..817B


Query : 2002A&A...390..817B

2002A&A...390..817B - Astronomy and Astrophysics, volume 390, 817-820 (2002/8-2)

Deprojection of luminosity functions of galaxies in the Coma cluster.

BEIJERSBERGEN M., SCHAAP W.E. and VAN DER HULST J.M.

Abstract (from CDS):

We use a simple analytic model to deproject 2-d luminosity functions (LF) of galaxies in the Coma cluster measured by Beijersbergen et al. 2002. 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 M*U=-18.31+0.08–0.08 and αU=-1.27+0.018–0.018, M*B=-19.79+0.14–0.15 and αB=-1.44+0.016–0.016 and M*r=-21.77+0.20–0.28 and αr=-1.27+0.012–0.012. 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.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Coma (A1656) - galaxies: luminosity function - galaxies: evolution - galaxies: formation

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 4839 rG 12 57 24.353 +27 29 51.80 13.56 13.02 12.06     ~ 438 3
2 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4368 2

    Equat.    Gal    SGal    Ecl

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2021.07.27-07:17:25

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