Integrated photometry was performed using the APPHOT
IRAF package, mainly the polyphot and phot tasks. Standard
Landolt ([1992]) stars observed during each night under
different airmasses were used for calibration. They were
measured with different apertures using the phot task. The
curve of growth of each star was built following the algorithm
found in Stetson ([1990]). A least-square method was
used to get the following transformation equations:
| (1) |
where B is the Johnson B apparent magnitude, FB is the
flux in counts
,
C is the instrumental constant,
KB the extinction, X the airmass, and KB-r the colour
constant referred to the Johnson B-Gunn r colour (we already
had Gunn r magnitudes of the galaxies).
Whereas our sample of galaxies was observed in the Gunn r filter, photometric star data from Landolt ([1992])
refer to the Cousins system. Therefore, we have corrected
the colours included in the Bouguer fit with an averaged
(Fukugita et al. [1995]).
The errors of the galaxy magnitudes due to the Bouguer fit
were calculated for each object with the covariance matrix of
the least-square fit according to the expression:
| (2) |
where
is the value of the t distribution
with
degrees of freedom, and
is an
unbiased estimation of the standard deviation of the
least-square fit. The variance-covariance matrix of the
least-square fit, A, the column and line matrixes X and
for each object are defined as:
![]() |
(3) |
![]() |
(4) |
| Telescope | Date | CCD | RN | Gain | Scale | C | KB | KB-r |
| (e-) | (e-/ADU) | (
|
||||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
| JKT | Nov. 27, 1997 | TEK#4 | 4.10 | 1.63 | 0.30 | 23.00 |
-0.22 |
0.03 |
| JKT | Dec. 01, 1997 | TEK#4 | 4.10 | 1.63 | 0.30 | 23.01 |
-0.24 |
0.02 |
| JKT | Dec. 02, 1997 | TEK#4 | 4.10 | 1.63 | 0.30 | 22.78 |
-0.12 |
0.01 |
| 1.52 m | Jun. 18, 1998 | TEK1024 | 6.38 | 6.55 | 0.40 | 21.45 |
-0.33 |
0.09 |
| 1.52 m | Jun. 19, 1998 | TEK1024 | 6.38 | 6.55 | 0.40 | 21.40 |
-0.27 |
0.09 |
| 1.23 m | Oct. 28, 1998 | TEK7c_12 | 5.52 | 0.80 | 0.50 | 22.28 |
-0.21 |
0.08 |
| 1.52 m | Jun. 10, 1999 | TEK1024 | 6.38 | 6.55 | 0.40 | 21.80 |
-0.36 |
0.10 |
| 1.23 m | Jun. 16, 1999 | LORAL#11 | 8.50 | 1.70 | 0.31 | 22.95 |
-0.27 |
0.04 |
| 1.23 m | Jun. 17, 1999 | SITe#18 | 5.20 | 2.60 | 0.50 | 22.03 |
-0.19 |
0.05 |
| 1.23 m | Jun. 19, 1999 | TEK#13 | 5.10 | 0.60 | 0.50 | 22.81 |
-0.25 |
0.09 |
| 1.23 m | Jun. 20, 1999 | TEK#13 | 5.10 | 0.60 | 0.50 | 22.84 |
-0.25 |
0.07 |
| JKT | Jul. 12, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 23.09 |
-0.50 |
0.04 |
| JKT | Jul. 13, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 22.77 |
-0.21 |
0.03 |
| JKT | Jul. 15, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 22.81 |
-0.24 |
0.07 |
| JKT | Jul. 16, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 22.75 |
-0.25 |
0.07 |
| JKT | Jul. 17, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 22.75 |
-0.20 |
0.06 |
| JKT | Jul. 18, 1999 | TEK#5 | 4.82 | 1.53 | 0.30 | 22.85 |
-0.27 |
0.06 |
Table 2: (1) Telescope name. JKT stands for the Jacobus Kapteyn Telescope in La Palma (Spain); 1.52 m for the Spanish Telescope in Calar Alto, Almería (Spain); 1.23 m refers to the telescope at the German-Spanish Observatory in Calar Alto. (2) Date of the observation. (3) CCD detector used. (4) Readout noise of the CCD in electrons. (5) Gain of the CCD in electrons per ADU. (6) Scale of the chip in arcsec per pixel. (7) Instrumental constant of the photometric calibration for each night using Landolt ([1992]) stars. (8) Extinction in the Johnson B band. (9) Colour term of the Bouguer fit refered to the B-r colour (Johnson B and Gunn r).
Many galaxies were found to be very irregular in shape, being very difficult to apply the standard circular apertures. We decided to measure fluxes using the IRAF task polyphot. This task allowed us to build polygons around the galaxies including the whole object and minimizing the area of sky also included. At least two polygons were used in three different positions (securing a minimum of six measures) to avoid errors due to the specific shape of the polygon. The sky was determined as an average of at least 8 measures with a circular aperture around the object.
The errors were calculated as follows. Each flux measurement
included an error due to Poisson noise, the
uncertainty in the sky determination, and the readout noise of
the CCD. This error, in magnitude
representation, is described by the expression:
![]() |
(5) |
where F is the flux in counts s-1, G is
the CCD gain in counts
,
Area is the area in
pixels enclosed by the polygon,
is the standard
deviation of the sky measure and
is the number of
pixels of the sky measure. The first term of the sum inside
the square root is the Poisson noise (square root of the
number of electrons counted), the second term refers to the
uncertainty in the determination of the sky level,
and the third is related to the effects of flatfield errors in
the sky determination.
Several polygon measures were taken to assure a good magnitude
determination. The final associated error was chosen to be the
greatest among all the associated to each polygon and the
standard deviation of all the polygon measures:
| (6) |
![]() |
(7) |
![]() |
(8) |
where i runs from the center to the aperture which
has an isophotal level corresponding to the standard deviation
of the sky. A second set of total magnitudes were measured
within an aperture of radius
applying this
method. In average, Kron magnitudes were 0.02
fainter than
the polygonal ones; the absolute differences ranged from 0.00
to 0.47 magnitudes. The highest differences were always due to
the presence of field stars inside the Kron aperture or flux
contamination from nearby objects, which have been previously
deleted interactively using the CR_UTILS IRAF package.
The apparent magnitudes were converted into absolute magnitudes using the redshifts listed in Table 1. The standard galactic extinction correction was applied using the Burstein & Heiles ([1982]) maps. Because the Balmer decrements are also available for most of the objects (Gallego et al. [1996]), we provide these values in Table 1 to allow the correction from total extinction (Galactic and internal) through the B-V colour excess.
The effective radius (defined as the radius that contains half
of the total light) in the B images was measured in two
different ways. First, an equivalent half light radius in
arcsec was calculated as the geometric mean of the major and
minor semi-axes of the elliptical isophote containing half of
the galaxy flux (i.e.,
magnitudes); this half-light
radius
is tabulated in Col. (5) of Table 3.
We also measured the flux of the galaxy inside circular
apertures and selected the one containing half of the
light. These radii were transformed into effective radius in
kpc (
,
Col. (4) of Table 3) with the formula:
![]() |
(9) |
In Table 3 we summarize all these results: apparent total and B24 magnitudes in Cols. (2) and (3); effective radius in kpc and arcsec in Cols. (4) and (5) respectively; absolute B magnitudes corrected from Galactic extinction in Col. (6) and effective and isophote 24 mag arcsec-2 B-r colours in Cols. (7) and (8). Colour information is only available for those galaxies with Gunn r magnitude measured by Vitores et al. ([1996a]).
| UCM name |
|
(mB)24 |
|
MB |
|
(B-r)24 | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| 0000+2140 | 14.50 |
14.82 |
4.9 | 7.6 | -21.41 |
- | - |
| 0003+2200 | 17.64 |
17.81 |
2.1 | 5.3 | -18.16 |
1.37 |
1.37 |
| 0003+2215 | 16.63 |
16.98 |
4.5 | 9.6 | -19.15 |
- | - |
| 0003+1955 | 14.09 |
14.12 |
0.8 | 1.0 | -22.14 |
- | - |
| 0005+1802 | 16.32 |
16.52 |
2.1 | 3.8 | -19.03 |
- | - |
| 0006+2332 | 14.92 |
15.11 |
4.1 | 8.5 | -20.18 |
- | - |
| 0013+1942 | 17.11 |
17.32 |
2.0 | 2.7 | -19.04 |
-0.06 |
0.52 |
| 0014+1829 | 16.09 |
16.31 |
1.6 | 3.2 | -19.21 |
0.55 |
0.58 |
| 0014+1748 | 14.87 |
15.21 |
7.9 | 13.6 | -20.41 |
1.15 |
1.06 |
| 0015+2212 | 16.54 |
16.83 |
1.3 | 2.6 | -18.97 |
0.53 |
0.84 |
| 0017+1942 | 15.83 |
15.97 |
4.3 | 4.5 | -20.39 |
0.53 |
0.52 |
| 0017+2148 | 16.69 |
17.07 |
1.1 | 2.7 | -18.74 |
- | - |
| 0018+2216 | 16.83 |
16.91 |
1.1 | 2.2 | -18.34 |
0.56 |
0.79 |
| 0018+2218 | 15.80 |
16.24 |
6.2 | 13.1 | -19.95 |
- | |
| 0019+2201 | 16.47 |
16.87 |
2.5 | 4.5 | -18.97 |
1.11 |
1.08 |
| 0022+2049 | 15.62 |
15.76 |
2.3 | 4.1 | -19.73 |
1.16 |
1.16 |
| 0023+1908 | 16.78 |
16.89 |
1.5 | 2.2 | -19.23 |
- | - |
| 0034+2119 | 15.80 |
16.09 |
5.3 | 5.5 | -20.66 |
- | - |
| 0037+2226 | 14.57 |
14.71 |
4.9 | 9.8 | -20.95 |
- | - |
| 0038+2259 | 16.15 |
16.32 |
7.5 | 5.5 | -21.14 |
1.28 |
1.25 |
| 0039+0054 | 14.91 |
15.29 |
6.7 | 15.6 | -20.40 |
- | - |
| 0040+0257 | 16.84 |
17.02 |
2.3 | 2.1 | -19.95 |
-0.25 |
0.10 |
| 0040+2312 | 15.59 |
15.96 |
6.8 | 7.6 | -20.38 |
- | - |
| 0040+0220 | 17.07 |
17.21 |
1.0 | 2.0 | -18.04 |
0.44 |
0.67 |
| 0040-0023 | 13.64 |
13.87 |
5.8 | 14.9 | -21.04 |
- | - |
| 0041+0134 | 14.31 |
14.63 |
9.9 | 21.0 | -20.76 |
- | - |
| 0043+0245 | 17.24 |
17.36 |
1.0 | 2.0 | -18.03 |
- | - |
| 0043-0159 | 13.05 |
13.09 |
8.1 | 17.1 | -21.94 |
- | - |
| 0044+2246 | 15.97 |
16.26 |
5.7 | 7.3 | -20.04 |
1.20 |
1.08 |
| 0045+2206 | 14.97 |
15.08 |
1.9 | 3.9 | -20.53 |
- | - |
| 0047+2051 | 16.86 |
16.91 |
4.0 | 2.9 | -20.94 |
0.60 |
0.77 |
| 0047-0213 | 15.53 |
15.71 |
1.4 | 3.8 | -19.32 |
0.49 |
0.67 |
| 0047+2413 | 15.72 |
15.96 |
7.3 | 6.7 | -20.99 |
1.07 |
1.02 |
| 0047+2414 | 15.21 |
15.28 |
5.1 | 4.9 | -21.50 |
- | - |
| 0049-0006 | 18.24 |
18.77 |
1.9 | 1.7 | -18.60 |
0.01 |
- |
| 0049+0017 | 16.97 |
17.38 |
1.4 | 3.7 | -17.71 |
-0.33 |
0.16 |
| 0049-0045 | 15.21 |
15.39 |
0.7 | 5.7 | -17.23 |
- | - |
| 0050+0005 | 16.26 |
16.46 |
2.9 | 3.0 | -20.40 |
0.44 |
0.50 |
| 0050+2114 | 15.53 |
- | - | - | -20.41 |
0.83 |
- |
| 0051+2430 | 15.19 |
15.34 |
3.8 | 8.5 | -19.99 |
- | - |
| 0054-0133 | 15.74 |
16.09 |
7.2 | 5.7 | -21.87 |
- | - |
| 0054+2337 | 15.19 |
15.50 |
3.8 | 8.7 | -19.94 |
- | - |
| 0056+0044 | 16.60 |
17.32 |
3.7 | 10.7 | -18.67 |
0.28 |
0.26 |
| 0056+0043 | 16.56 |
16.64 |
1.3 | 2.3 | -18.78 |
0.26 |
0.42 |
| 0119+2156 | 16.59 |
16.82 |
9.6 | 5.3 | -21.32 |
1.26 |
1.13 |
| 0121+2137 | 15.81 |
15.98 |
8.5 | 9.8 | -20.93 |
0.51 |
0.40 |
| 0129+2109 | 15.11 |
15.22 |
8.3 | 10.1 | -21.66 |
- | - |
| 0134+2257 | 15.89 |
16.26 |
6.9 | 7.3 | -21.14 |
- | - |
| 0135+2242 | 16.79 |
17.21 |
2.4 | 3.0 | -20.33 |
0.67 |
0.74 |
| 0138+2216 | 17.58 |
17.82 |
3.9 | 2.3 | -20.62 |
- | - |
| 0141+2220 | 16.26 |
16.36 |
1.7 | 3.0 | -19.18 |
0.39 |
0.37 |
| 0142+2137 | 15.39 |
15.66 |
9.4 | 9.9 | -21.59 |
1.20 |
1.11 |
| 0144+2519 | 15.64 |
15.89 |
9.6 | 10.7 | -21.79 |
0.77 |
0.67 |
| 0147+2309 | 16.72 |
16.94 |
1.9 | 3.4 | -18.91 |
0.75 |
0.79 |
| 0148+2124 | 16.88 |
17.28 |
1.2 | 3.2 | -18.40 |
0.39 |
0.62 |
| 0150+2032 | 16.66 |
16.99 |
6.3 | 8.7 | -19.98 |
0.60 |
0.58 |
| 0156+2410 | 15.16 |
15.33 |
2.1 | 5.3 | -19.75 |
0.48 |
0.53 |
| 0157+2413 | 15.03 |
15.16 |
5.4 | 8.7 | -20.44 |
1.20 |
1.14 |
| 0157+2102 | 14.87 |
14.95 |
1.6 | 4.4 | -19.40 |
0.24 |
0.33 |
| 0159+2354 | 17.19 |
17.41 |
1.1 | 2.4 | -18.20 |
1.00 |
- |
| 0159+2326 | 15.87 |
16.01 |
2.5 | 4.9 | -19.56 |
0.99 |
1.02 |
| 1246+2727 | 15.88 |
15.94 |
3.5 | 5.6 | -19.55 |
- | - |
| 1247+2701 | 16.63 |
16.77 |
2.3 | 3.4 | -19.11 |
0.49 |
0.55 |
| 1248+2912 | 14.87 |
15.18 |
5.8 | 10.5 | -20.75 |
- | - |
| 1253+2756 | 15.81 |
15.98 |
1.5 | 3.2 | -19.20 |
0.67 |
0.68 |
| 1254+2741 | 16.70 |
17.20 |
2.4 | 5.0 | -18.40 |
1.10 |
1.05 |
| UCM name |
|
(mB)24 |
|
MB |
|
(B-r)24 | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| 1254+2802 | 16.81 |
17.00 |
2.9 | 3.7 | -19.15 |
0.90 |
0.98 |
| 1255+2819 | 15.51 |
16.08 |
7.7 | 10.8 | -20.64 |
0.83 |
0.77 |
| 1255+3125 | 16.14 |
16.41 |
2.1 | 3.2 | -19.86 |
1.12 |
1.14 |
| 1255+2734 | 16.69 |
16.96 |
2.7 | 5.7 | -19.08 |
0.88 |
0.85 |
| 1256+2717 | 17.62 |
18.13 |
1.5 | 2.6 | -18.48 |
- | - |
| 1256+2732 | 15.95 |
16.18 |
2.8 | 4.3 | -19.82 |
0.52 |
0.53 |
| 1256+2701 | 16.62 |
16.88 |
4.7 | 5.6 | -19.25 |
0.44 |
0.39 |
| 1256+2910 | 16.22 |
16.22 |
4.6 | 4.8 | -19.96 |
0.83 |
0.86 |
| 1256+2823 | 15.72 |
16.04 |
6.0 | 6.3 | -20.68 |
0.90 |
0.80 |
| 1256+2754 | 15.37 |
15.44 |
2.6 | 5.0 | -19.74 |
0.49 |
0.50 |
| 1256+2722 | 17.09 |
17.28 |
2.4 | 2.7 | -19.11 |
0.64 |
0.80 |
| 1257+2808 | 16.14 |
16.34 |
1.7 | 3.3 | -19.10 |
0.66 |
0.71 |
| 1258+2754 | 15.82 |
16.03 |
4.1 | 5.6 | -20.13 |
0.42 |
0.38 |
| 1259+2934 | 14.21 |
- | - | - | -21.59 |
0.03 |
- |
| 1259+3011 | 16.21 |
16.32 |
1.9 | 2.3 | -20.13 |
0.72 |
0.84 |
| 1259+2755 | 15.37 |
15.51 |
3.2 | 4.4 | -20.42 |
0.84 |
0.95 |
| 1300+2907 | 17.07 |
17.37 |
1.4 | 2.7 | -18.56 |
0.03 |
0.35 |
| 1301+2904 | 15.45 |
15.81 |
5.8 | 8.0 | -20.61 |
0.48 |
0.36 |
| 1302+2853 | 16.22 |
16.43 |
2.7 | 4.3 | -19.59 |
0.48 |
0.47 |
| 1302+3032 | 16.56 |
16.74 |
2.3 | 2.7 | -20.04 |
- | - |
| 1303+2908 | 16.78 |
16.99 |
3.5 | 4.6 | -19.24 |
0.38 |
0.56 |
| 1304+2808 | 15.84 |
16.12 |
4.2 | 8.8 | -19.71 |
1.12 |
1.04 |
| 1304+2830 | 18.57 |
18.69 |
0.8 | 1.3 | -17.05 |
-0.08 |
0.41 |
| 1304+2907 | 15.12 |
15.38 |
5.1 | 12.6 | -19.82 |
0.45 |
0.48 |
| 1304+2818 | 15.75 |
15.91 |
4.5 | 5.9 | -20.13 |
0.81 |
0.81 |
| 1306+2938 | 15.27 |
15.47 |
2.7 | 4.4 | -20.27 |
0.41 |
0.49 |
| 1306+3111 | 16.25 |
16.40 |
1.7 | 3.5 | -18.79 |
0.97 |
0.91 |
| 1307+2910 | 14.04 |
14.41 |
9.2 | 17.5 | -21.21 |
1.07 |
0.98 |
| 1308+2958 | 15.25 |
15.46 |
6.8 | 10.3 | -20.42 |
0.88 |
0.82 |
| 1308+2950 | 14.83 |
15.10 |
10.2 | 13.8 | -21.05 |
1.17 |
1.06 |
| 1310+3027 | 16.51 |
16.77 |
2.6 | 3.7 | -19.28 |
0.90 |
0.89 |
| 1312+3040 | 15.49 |
15.67 |
2.8 | 4.6 | -20.05 |
0.96 |
0.90 |
| 1312+2954 | 16.10 |
16.24 |
4.4 | 5.6 | -19.64 |
0.90 |
0.88 |
| 1313+2938 | 16.68 |
16.82 |
1.6 | 1.7 | -20.18 |
0.06 |
0.39 |
| 1314+2827 | 16.14 |
16.35 |
1.9 | 2.8 | -19.83 |
0.07 |
0.60 |
| 1320+2727 | 17.41 |
17.53 |
1.3 | 1.9 | -18.52 |
-0.03 |
0.39 |
| 1324+2926 | 17.62 |
18.02 |
0.8 | 2.1 | -17.46 |
0.63 |
0.89 |
| 1324+2651 | 15.10 |
15.20 |
1.9 | 2.9 | -20.79 |
0.44 |
0.61 |
| 1331+2900 | 18.81 |
19.12 |
1.4 | 1.4 | -17.87 |
0.39 |
0.50 |
| 1428+2727 | 14.78 |
14.91 |
2.3 | 5.3 | -19.98 |
0.50 |
0.44 |
| 1429+2645 | 17.31 |
17.83 |
2.4 | 3.3 | -19.17 |
0.43 |
0.64 |
| 1430+2947 | 16.46 |
16.91 |
3.2 | 4.2 | -19.76 |
0.90 |
0.79 |
| 1431+2854 | 15.51 |
15.64 |
5.3 | 5.0 | -20.85 |
0.96 |
0.81 |
| 1431+2702 | 16.57 |
17.12 |
2.6 | 3.5 | -20.28 |
0.50 |
0.55 |
| 1431+2947 | 17.49 |
18.23 |
2.4 | 5.2 | -18.12 |
0.59 |
0.55 |
| 1431+2814 | 16.92 |
17.05 |
2.6 | 2.6 | -19.51 |
1.01 |
1.04 |
| 1432+2645 | 15.35 |
15.66 |
7.4 | 9.3 | -21.04 |
0.72 |
0.74 |
| 1440+2521S | 16.80 |
17.12 |
3.3 | 3.7 | -19.67 |
0.74 |
0.73 |
| 1440+2511 | 16.37 |
17.07 |
6.4 | 8.7 | -20.22 |
0.95 |
0.88 |
| 1440+2521N | 16.64 |
16.84 |
3.6 | 4.1 | -19.83 |
1.11 |
0.97 |
| 1442+2845 | 15.29 |
15.49 |
1.9 | 6.0 | -18.81 |
0.63 |
0.66 |
| 1443+2714 | 15.49 |
15.80 |
3.8 | 5.4 | -20.79 |
0.94 |
0.78 |
| 1443+2844 | 15.65 |
15.73 |
4.0 | 4.9 | -20.51 |
0.82 |
0.74 |
| 1443+2548 | 15.75 |
15.80 |
4.8 | 4.8 | -20.99 |
0.63 |
0.57 |
| 1444+2923 | 16.39 |
17.13 |
4.9 | 6.3 | -19.76 |
0.74 |
0.69 |
| 1452+2754 | 16.32 |
16.46 |
3.8 | 4.1 | -20.32 |
0.99 |
0.89 |
| 1506+1922 | 15.93 |
16.23 |
2.8 | 5.6 | -19.60 |
1.01 |
1.00 |
| 1513+2012 | 15.79 |
15.96 |
4.0 | 3.4 | -21.09 |
0.84 |
0.79 |
| 1537+2506N | 15.13 |
15.33 |
4.8 | 6.6 | -20.76 |
0.90 |
0.87 |
| 1537+2506S | 16.10 |
16.32 |
2.9 | 3.5 | -19.79 |
0.75 |
0.67 |
| 1557+1423 | 16.65 |
16.83 |
2.6 | 3.3 | -19.55 |
0.90 |
0.87 |
| 1612+1308 | 18.05 |
18.11 |
0.5 | 1.4 | -16.27 |
0.35 |
0.37 |
| 1646+2725 | 18.16 |
18.54 |
2.8 | 4.5 | -18.61 |
0.33 |
0.27 |
| 1647+2950 | 15.43 |
15.56 |
4.7 | 5.7 | -20.91 |
0.67 |
0.66 |
| 1647+2729 | 16.03 |
16.06 |
4.1 | 3.9 | -20.91 |
0.73 |
0.68 |
| 1647+2727 | 17.12 |
16.15 |
4.3 | 2.0 | -19.83 |
0.83 |
0.74 |
| 1648+2855 | 15.40 |
15.58 |
3.2 | 3.8 | -21.13 |
0.42 |
0.48 |
| 1653+2644 | 14.72 |
15.01 |
3.8 | 4.5 | -22.37 |
- | - |
| 1654+2812 | 18.06 |
18.60 |
3.6 | 3.5 | -18.84 |
0.63 |
0.63 |
| UCM name |
|
(mB)24 |
|
MB |
|
(B-r)24 | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| 1655+2755 | 15.59 |
15.88 |
9.9 | 10.0 | -21.30 |
1.28 |
1.20 |
| 1656+2744 | 16.84 |
17.37 |
1.7 | 3.0 | -19.89 |
0.74 |
0.82 |
| 1657+2901 | 17.12 |
17.23 |
2.2 | 2.3 | -19.54 |
0.73 |
0.67 |
| 1659+2928 | 15.73 |
16.02 |
4.9 | 4.4 | -21.24 |
0.76 |
0.76 |
| 1701+3131 | 15.27 |
15.40 |
4.2 | 4.2 | -21.47 |
0.99 |
0.82 |
| 2238+2308 | 14.86 |
14.86 |
5.4 | 5.6 | -21.17 |
0.81 |
0.77 |
| 2239+1959 | 14.82 |
15.01 |
3.0 | 4.4 | -21.34 |
0.78 |
0.73 |
| 2249+2149 | 15.96 |
16.26 |
7.9 | 5.9 | -21.51 |
1.27 |
1.20 |
| 2250+2427 | 15.39 |
15.48 |
3.0 | 2.6 | -21.88 |
0.32 |
0.55 |
| 2251+2352 | 16.36 |
16.45 |
1.8 | 2.4 | -19.81 |
0.50 |
0.59 |
| 2253+2219 | 16.12 |
16.18 |
1.9 | 3.7 | -19.88 |
0.61 |
0.63 |
| 2255+1930S | 16.08 |
16.16 |
1.2 | 2.1 | -19.54 |
0.21 |
0.56 |
| 2255+1930N | 15.76 |
15.95 |
2.2 | 3.8 | -19.80 |
1.02 |
1.10 |
| 2255+1926 | 16.74 |
17.18 |
3.2 | 5.5 | -18.77 |
0.55 |
0.54 |
| 2255+1654 | 16.62 |
16.84 |
6.8 | 10.2 | -20.50 |
1.20 |
1.08 |
| 2256+2001 | 15.62 |
16.03 |
8.2 | 12.2 | -20.35 |
1.11 |
1.06 |
| 2257+2438 | 16.04 |
16.15 |
1.3 | 1.4 | -20.71 |
-0.30 |
0.14 |
| 2257+1606 | 16.40 |
16.57 |
2.0 | 2.1 | -20.38 |
- | - |
| 2258+1920 | 15.80 |
15.99 |
2.8 | 4.6 | -19.95 |
0.33 |
0.41 |
| 2300+2015 | 16.53 |
16.87 |
4.4 | 3.9 | -20.27 |
0.70 |
0.80 |
| 2302+2053W | 17.97 |
18.20 |
1.6 | 1.7 | -18.79 |
0.53 |
0.86 |
| 2302+2053E | 15.49 |
15.85 |
5.6 | 6.8 | -21.28 |
1.49 |
1.37 |
| 2303+1856 | 15.62 |
15.86 |
3.5 | 5.1 | -20.64 |
0.90 |
0.85 |
| 2303+1702 | 17.46 |
17.76 |
4.3 | 4.3 | -19.86 |
1.31 |
1.27 |
| 2304+1640 | 17.56 |
17.89 |
0.9 | 2.1 | -17.81 |
-0.18 |
0.27 |
| 2304+1621 | 16.69 |
17.28 |
2.9 | 4.0 | -20.34 |
1.22 |
- |
| 2307+1947 | 16.62 |
16.85 |
2.9 | 3.7 | -19.62 |
1.01 |
0.91 |
| 2310+1800 | 16.76 |
16.97 |
3.7 | 3.6 | -20.18 |
0.78 |
0.94 |
| 2312+2204 | 17.13 |
17.39 |
2.1 | 2.6 | -19.64 |
- | - |
| 2313+1841 | 16.59 |
17.27 |
3.1 | 8.8 | -19.87 |
0.87 |
0.79 |
| 2313+2517 | 14.91 |
15.23 |
5.7 | 6.4 | -21.45 |
- | - |
| 2315+1923 | 17.22 |
17.61 |
2.2 | 2.6 | -19.73 |
0.39 |
0.48 |
| 2316+2457 | 14.35 |
14.51 |
4.7 | 7.0 | -22.03 |
0.86 |
0.77 |
| 2316+2459 | 15.82 |
16.24 |
6.4 | 10.6 | -20.53 |
0.85 |
0.83 |
| 2316+2028 | 16.84 |
17.08 |
1.3 | 1.9 | -19.33 |
-0.38 |
0.12 |
| 2317+2356 | 13.86 |
13.99 |
8.8 | 9.8 | -22.89 |
0.75 |
0.67 |
| 2319+2234 | 16.50 |
16.86 |
3.2 | 3.2 | -20.36 |
-0.17 |
0.12 |
| 2319+2243 | 15.69 |
16.05 |
4.4 | 5.4 | -20.83 |
1.07 |
1.02 |
| 2320+2428 | 15.13 |
15.80 |
6.6 | 10.4 | -21.51 |
1.26 |
1.21 |
| 2321+2149 | 16.55 |
16.74 |
4.2 | 5.0 | -20.36 |
0.66 |
0.66 |
| 2321+2506 | 15.75 |
15.86 |
5.3 | 5.3 | -20.86 |
0.54 |
0.51 |
| 2322+2218 | 17.69 |
17.89 |
1.9 | 2.4 | -18.32 |
0.77 |
0.95 |
| 2324+2448 | 13.32 |
13.62 |
7.1 | 21.4 | -21.20 |
0.91 |
0.81 |
| 2325+2318 | 13.21 |
13.37 |
3.1 | 9.9 | -21.25 |
- | - |
| 2325+2208 | 12.91 |
13.00 |
9.9 | 28.8 | -21.67 |
1.05 |
0.98 |
| 2326+2435 | 16.09 |
16.54 |
2.7 | 9.3 | -19.17 |
0.48 |
0.44 |
| 2327+2515N | 15.83 |
15.47 |
2.9 | 2.3 | -19.79 |
0.34 |
0.10 |
| 2327+2515S | 15.77 |
15.64 |
2.7 | 3.3 | -19.85 |
0.60 |
0.46 |
| 2329+2427 | 16.03 |
16.39 |
3.5 | 5.9 | -19.52 |
1.50 |
1.45 |
| 2329+2500 | 16.28 |
16.47 |
1.9 | 2.7 | -20.16 |
0.89 |
0.99 |
| 2329+2512 | 17.00 |
17.43 |
1.0 | 2.9 | -17.63 |
1.16 |
1.15 |
| 2331+2214 | 17.63 |
17.99 |
2.9 | 3.4 | -19.11 |
1.36 |
1.34 |
| 2333+2248 | 17.45 |
17.79 |
4.6 | 3.9 | -19.60 |
1.19 |
1.09 |
| 2333+2359 | 17.70 |
18.01 |
3.0 | 2.8 | -19.08 |
1.98 |
1.91 |
| 2348+2407 | 17.93 |
18.25 |
2.0 | 2.1 | -18.88 |
1.63 |
1.64 |
| 2351+2321 | 18.56 |
18.80 |
1.1 | 1.5 | -17.69 |
1.81 |
2.06 |
Total colour calculated from integrated magnitudes. No radial data are available due to low SNR in the images.
Table 3:
(1) UCM name. (2) Total Johnson B magnitude calculated with several
polygons. We have also measured the asymptotic magnitude at two Kron
radius yielding an average difference with the polygon measure of 0.02
magnitudes. (3) Johnson B magnitude measured inside the 24 mag arcsec-2 isophote. (4) Effective radius in kpc measured
in circular apertures and converted to distance using a Hubble
constant H0=50 km s-1 Mpc-1 and a
deceleration parameter q0=0.5. (5) Equivalent half-light radius
calculated with isophotal apertures. (6) Absolute magnitude corrected
from Galactic extinction according to the maps of Galactic reddening
of Burstein & Heiles ([1982]). (7) B-r colour measured inside
the effective isophote. (8) B-r colour measured inside the 24 mag arcsec-2 isophote.
Copyright The European Southern Observatory (ESO)