1999A&A...343..760D


Query : 1999A&A...343..760D

1999A&A...343..760D - Astronomy and Astrophysics, volume 343, 760-774 (1999/3-3)

The rich cluster of galaxies ABCG 85. IV. Emission line galaxies, luminosity function and dynamical properties.

DURRET F., GERBAL D., LOBO C. and PICHON C.

Abstract (from CDS):

This paper is the fourth of a series dealing with the cluster of galaxies ABCG 85. Using our two extensive photometric and spectroscopic catalogues (with 4232 and 551 galaxies respectively), we discuss here three topics derived from optical data. First, we present the properties of emission line versus non-emission line galaxies, showing that their spatial distributions somewhat differ; emission line galaxies tend to be more concentrated in the south region where groups appear to be falling onto the main cluster, in agreement with the hypothesis (presented in our previous paper) that this infall may create a shock which can heat the X-ray emitting gas and also enhance star formation in galaxies. Then, we analyze the luminosity function in the R band, which shows the presence of a dip similar to that observed in other clusters at comparable absolute magnitudes; this result is interpreted as due to comparable distributions of spirals, ellipticals and dwarfs in these various clusters. Finally, we present the dynamical analysis of the cluster using parametric and non-parametric methods and compare the dynamical mass profiles obtained from the X-ray and optical data.

Abstract Copyright:

Journal keyword(s): methods: analytical - methods: numerical - galaxies: clusters: general - galaxies: clusters: individual: ABCG 85 - galaxies: luminosity function, mass function

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 839 0
2 ACO 87 ClG 00 43 01 -09 47.6           ~ 45 0
3 ACO 89 ClG 00 43 07.7 -09 26 34           ~ 21 0
4 ACO 496 ClG 04 33 30.3838 -13 14 21.584           ~ 670 2
5 ACO 576 ClG 07 21 24.1 +55 44 20           ~ 287 1
6 ACO 963 ClG 10 17 09.6 +39 01 00           ~ 370 0
7 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6249 0
8 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4501 2
9 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 417 2

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2022.05.20-07:03:52

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