[CDM2005] ACO 2799 J003825.58-390428.40 , the SIMBAD biblio

2005AJ....129.1237C - Astron. J., 129, 1237-1248 (2005/March-0)

Photometric observations of southern Abell clusters redshifts survey clusters: galaxy luminosity profiles.


Abstract (from CDS):

We have analyzed CCD images of 14 Abell clusters in the R filter of the Southern Abell Clusters Redshifts Survey (SARS) with cz<40,000 km/s. We have obtained the luminosity profiles for 507 galaxies, of which 232 (46%) have known redshifts. In order to fit the luminosity profiles, we used the de Vaucouleurs law for bulge systems and an exponential profile for disk systems, and we also fitted the Sérsic's law (rn) to all galaxy profiles. We have found that 162 galaxies (32%) in the sample have pure r1/4 profiles, 168 (33%) have pure exponential profiles, and 93 (18%) have luminosity profiles that are well fitted by a combination of bulge and disk profiles. On the other hand, we could not fit the classical bulge+disk profile to the remaining 84 galaxies (17%) of the sample. For such cases we have used only the Sérsic law. We have also analyzed how seeing and sky cleaning affect the structural and photometric parameters obtained through profile fitting. In addition, we have studied several relations between these parameters. We have found that bulges and disks show consistency with a unique relation in the µe-logreplane. We also found that bulges and disks obey a magnitude-size relation in the sense that large bulges and disks (large revalues) have high luminosities. On the other hand, Sérsic-law fitting parameters n, rs, and µ_s_show a strong correlation, in agreement with the findings of other authors, suggesting that not only elliptical galaxies but all galaxies are likely to be understood as a one-parameter family.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General - Surveys

VizieR on-line data: <Available at CDS (J/AJ/129/1237): table1.dat table3.dat>

Nomenclature: Table 3: [CDM2005] ACO NNNN JHHMMSS.ss+DDMMSS.ss N=507.

CDS comments: Table 1: coordinates of ACO 2799 are 1950 coordinates, not 2000.

Simbad objects: 520

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