J/ApJS/126/1 Abell clusters photometry (Quintana+, 2000)
Photometry of the central regions in a complete sample of high Bautz-Morgan-Type
Abell clusters. I. Observations and data calibration.
Quintana H., Infante L., Fouque P., Carrasco E.R., Cuevas H.,
Hertling G., Nunez I.
<Astrophys. J. Suppl. Ser. 126, 1 (2000)>
=2000ApJS..126....1Q 2000ApJS..126....1Q
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Redshifts
Keywords: galaxies: clusters: general - galaxies: distances and redshifts -
galaxies: fundamental parameters - galaxies: photometry -
galaxies: structure
Abstract:
We present CCD photometry of 209 southern Abell clusters selected
according to Bautz-Morgan type I, III, and II. We have performed total
photometry in the Gunn r bandpass, classified stars and galaxies, and
obtained structural parameters for the images. To estimate the
photometric and structural errors on the CCD images and the
completeness limits of our photometry, we performed realistic
simulations of stars and galaxies and ran our classification
algorithms. Here, we present central galaxy counts and metric
photometry of the brightest cluster members, for which we give
accurate positions, and compare this photometry with values in the
literature. A linear magnitude-redshift relation has been derived from
the tenth-ranked galaxy in each cluster. Photometric redshifts have
been estimated for 57 clusters. We provide either spectroscopic or
photometric redshifts for all the clusters in our sample. Further
analysis of these data will be presented in further publications.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table6.dat 141 282 Sample of Abell Clusters and CCD Frames
--------------------------------------------------------------------------------
See also:
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ACO Abell (Cat. VII/110) number
6- 10 A5 --- BM Bautz-Morgan type
12 A1 --- R Richness class
13 A1 --- --- [/]
14 A1 --- D Distance class
16- 21 F6.4 --- z Redshift
23- 25 A3 --- Ref References (1)
27- 31 A5 --- CCD/S Center of CCD/Session (2)
33- 34 I2 h RACh CCD frame right ascension (1950)
36- 37 I2 min RACm CCD frame right ascension (1950)
39- 42 F4.1 s RACs CCD frame right ascension (1950)
44 A1 --- DEC- CCD frame declination sign (1950)
45- 46 I2 deg DECd CCD frame declination (1950)
48- 49 I2 arcmin DECm CCD frame declination (1950)
51- 52 I2 arcsec DECs CCD frame declination (1950)
54- 56 I3 --- NCCD Total number of galaxies detected in the
CCD field.
58- 59 I2 h RAh Central galaxy right ascension (1950)
61- 62 I2 min RAm Central galaxy right ascension (1950)
64- 67 F4.1 s RAs Central galaxy right ascension (1950)
69 A1 --- DE- Central galaxy declination sign (1950)
70- 71 I2 deg DEd Central galaxy declination (1950)
73- 74 I2 arcmin DEm Central galaxy declination (1950)
76- 77 I2 arcsec DEs Central galaxy declination (1950)
79- 80 I2 --- N0.25 Number of galaxies within the central
0.25Mpc radius
82- 85 F4.1 mag m1 ? Gunn r magnitude with aperture radii of 1 kpc
87- 91 F5.2 mag m16 Gunn r magnitude with aperture radii of 16.0 kpc
93- 97 F5.2 mag m35.9 Gunn r magnitude with aperture radii of 35.9 kpc
99-104 F6.2 mag Mlim ? Limiting absolute magnitude
(q0=0.5, H0=60km/s/Mpc)
106-141 A36 --- Com Comments (3)
--------------------------------------------------------------------------------
Note (1): References:
qr: Quintana & Ramirez 1995, Cat. J/ApJS/96/343
sr1: Struble & Rood 1987ApJS...63..543S 1987ApJS...63..543S
est: estimate
Note (2): CCD: RCA, TI or TEK chips
Note (3): Abbreviations:
ap = aperture; br = brightest; ctr = center; ctrd = centered;
cl = cluster; comp = component; fr = foreground; g = galaxy;
gr = group; rfx = references.
--------------------------------------------------------------------------------
Table 7: Redshift Corrections Kr(z)
-----------------------------------------------------
Redshift Mr Redshift correction
-----------------------------------------------------
0.000 -20.93 0.00
0.025 -20.94 -0.01
0.050 -20.95 -0.02
0.075 -20.95 -0.02
0.100 -20.92 0.01
0.125 -20.90 0.03
0.150 -20.89 0.04
0.175 -20.88 0.05
0.200 -20.86 0.07
0.225 -20.85 0.08
0.250 -20.84 0.09
0.275 -20.83 0.10
0.300 -20.83 0.11
-----------------------------------------------------
History: From ApJS electronic version
(End) James Marcout, Patricia Bauer [CDS] 06-Mar-2000