1995A&A...300..711A

Query : 1995A&A...300..711A

1995A&A...300..711A - Astronomy and Astrophysics, volume 300711-721 (1995/8-3)

Multicolor surface photometry of brightest cluster galaxies. II. Enlarging the sample and improving the analysis.

ANDREON S., GARILLI B. and MACCAGNI D.

Abstract (from CDS):

Intrinsic color profiles of a sample of nine Brightest Cluster Galaxies (BCGs) are recovered from the observed color profiles by evaluating spurious gradients introduced by errors in the determination of the sky levels and by different seeing conditions between the observations. Isophote shapes and surface brightness profiles are presented for the four newly observed BCGs. Three out of nine BCGs show color gradients of the order of 0.10mag per decade in radius. Five BCGs do not possess any color gradient larger than 0.01mag per decade in radius. We do not see any correlation between the presence (or the sign) of a color gradient and the BCG morphology (slope and shape of its surface brightness profile), or the cluster richness. This argues against a strong and recent influence of the environment on the BCG morphology. The slope of the BCG surface brightness profile is correlated to the cluster richness, posing a constraint on the initial conditions, or on the physical mechanism that is responsible for the present BCG morphology. Finally, only one BCG can be a cD despite visual classification as such of all studied BCGs.

Abstract Copyright: ∼

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - galaxies: cluster of - photometry

CDS comments: Sequences F284-9 and F762-8 not in SIMBAD

Simbad objects: 25

goto View the references in ADS

Number of rows : 25
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 22 ClG 00 20 41.4 -25 42 39           ~ 111 0
2 ACO 42 ClG 00 28 36.6 -23 36 23           ~ 63 0
3 ACO 140 ClG 01 04 38.1 -23 59 09           ~ 41 0
4 ACO 2877 ClG 01 09 49.3 -45 54 02           ~ 160 2
5 CD-45 465 * 01 24 57.5113364112 -44 38 27.464779464   12.203 11.692     ~ 9 0
6 ACO 389 ClG 02 51 24.74 -24 56 39.5           ~ 69 0
7 ACO 3109 ClG 03 16.7 -43 51           ~ 19 2
8 ACO 3159 ClG 03 44 04 -32 41.6           ~ 10 0
9 ACO 3186 ClG 03 52 20.6 -74 00 11           ~ 60 0
10 ACO 514 ClG 04 48 18 -20 28.7           ~ 149 0
11 ACO 3429 ClG 09 59 24 -24 58.4           ~ 9 0
12 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
13 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
14 ACO 1996 ClG 14 57 24 -23 55.0           ~ 9 0
15 ACO 3639 ClG 19 28 02 -50 56.9           ~ 14 0
16 HD 190777 * 20 08 29.2360406976 -44 39 06.566011668   10.59 9.56     K0/1III 15 0
17 ACO 3670 ClG 20 14 17 -29 44.9           ~ 11 1
18 ACO 2328 ClG 20 48 09.8 -17 50 14           ~ 78 0
19 ACO 2335 ClG 21 06 04 -21 47.0           ~ 7 0
20 ACO 2347 ClG 21 29 32 -22 12.8           ~ 23 0
21 ACO 2384 ClG 21 52 20.9 -19 32 53           ~ 117 0
22 ACO 2405 ClG 21 59 32.75 -17 49 35.9           ~ 13 0
23 ACO 2462 ClG 22 39 17.3 -17 22 23           ~ 96 0
24 ACO 2554 ClG 23 12 18.7 -21 30 54           ~ 100 1
25 ACO 2686 ClG 23 59.4 -20 48           ~ 32 1

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