J/MNRAS/240/785 Multicolour photometry of Sersic 129-01 (Millington+ 1989)
Multicolour photometry of the cluster of galaxies Sersic 129-01
Millington S.J.C., Peach J.V.
<Mon. Not. R. Astron. Soc. 240, 785 (1989)>
=1989MNRAS.240..785M 1989MNRAS.240..785M
ADC_Keywords: Clusters, galaxy ; Photometry, photographic ; Photometry, surface
Summary:
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 (1982AJ.....87..462G 1982AJ.....87..462G). The
L-{sigma{ 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 H0. A mass of
7.4x1013M☉ is found for the elliptical dominated component of
the cluster and (M/L)b=59.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
appendix.dat 79 811 ubri photometry
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Byte-per-byte Description of file: appendix.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [MP89] [1/907]+ Identification number
4 A1 --- Type '?' for probable galaxies,
';' when magnitudes could not be measured
due to contamination by stars
6- 7 I2 h RAh Right ascension 1950
9- 10 I2 min RAm Right ascension 1950
12- 13 I2 s RAs [0,60] Right ascension 1950
16 A1 --- DE- Declination 1950 (sign)
17- 18 I2 deg DEd Declination 1950
20- 21 I2 arcmin DEm Declination 1950
23- 24 I2 arcsec DEs [0,60] Declination 1950
30 A1 --- Remark 'D' for double, 'E' for est.mag.
31 A1 --- Overlap '*' for overlapped image
32- 36 F5.2 mag b26.25 ? b26.25 isophotal magnitude
38- 41 F4.1 arcsec R(b26.25) ? Effective radius at
26.25 mag/arcsec2 limiting isophote
45- 48 F4.2 mag b-r ? (b-r) equal area colour
50- 53 F4.1 arcsec R(b-r) ? Radius of equal area colour
57- 61 F5.2 mag u-b ? (u-b) equal area colour
63- 66 F4.1 arcsec R(u-b) ? Radius of equal area colour
69- 73 F5.2 mag b-i ? (b-i) equal area colour
76- 79 F4.1 arcsec R(b-i) ? Radius of equal area colour
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History:
* 22-Nov-2001: Numbers 433 to 528 were missing; these were added.
(End) Francois Ochsenbein [CDS] 05-Jan-1993