J/MNRAS/240/785 J/MNRAS/240/785 Multicolour photometry of Sersic 129-01 S J C Millington J V Peach Mon. Not. R. Astron. Soc. 240 785 1989 1989MNRAS.240..785M Galaxies, photometry Redshifts Spectra, ultraviolet We describe photometry of 907 galaxies brighter than b26.25=20.5 in a 1.83X1.83 area centred on the southern cluster Sersic 129-01 in the u, b, r and i bands. The slopes and zero-points of the colour-absolute magnitude diagrams agree well with other clusters including Coma and the rich cluster Shapley 8 suggesting they are independent of cluster environment. The (u-b) against (b-i) diagram distinguishes well between morphological types. The reddening we obtain by a number of methods disagrees with that of Griersmith (1982). The L-sig relation has a similar form to other clusters and when combined with data for Virgo leads to a relative distance modulus which agrees with that from Griersmith's comparison of colour-magnitude diagrams only on the assumption of E (B-V) = 0.15 in front of the cluster and a high value of Ho. A mass of 7.4X10 13 Mo is found for the elliptical dominated component of the cluster and (M/L)b=59.

No Identification number --- Type '?' for probable galaxies, ';' when magnitudes could not be measured due to contamination by stars --- RAh Right ascension 1950 h RAm Right ascension 1950 min RAs Right ascension 1950 s DE- Declination 1950 (sign) --- DEd Declination 1950 deg DEm Declination 1950 arcmin DEs Declination 1950 arcsec Remark 'D' for double, 'E' for est.mag. --- Overlap '*' for overlapped image --- b26.25 b26.25 isophotoal magnitude mag R(b26.25) Effective radius at 26.25 mag/arcsec^2 limiting isophote arcsec b-r (b-r) equal area colour mag R(b-r) Radius of equal area colour arcsec u-b (u-b) equal area colour mag R(u-b) Radius of equal area colour arcsec b-i (b-i) equal area colour mag R(b-i) Radius of equal area colour arcsec Francois Ochsenbein CDS 1993Jan05 J_MNRAS_240_785.xml