J/A+AS/128/67 BVR photometry of Abell 85 (Slezak+ 1998)
A photometric catalogue of galaxies in the cluster Abell 85
Slezak E., Durret F., Guibert J., Lobo C.
<Astron. Astrophys. Suppl. Ser. 128, 67 (1998)>
=1998A&AS..128...67S 1998A&AS..128...67S
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry
Keywords: Galaxies: clusters: individual: ABCG 85; galaxies: photometry
Abstract:
We present two catalogues of galaxies in the direction of the rich
cluster ABCG 85. The first one includes 4232 galaxies located in a
region ±1° from the cluster centre. It has been obtained from a
list of more than 25000 galaxy candidates detected by scanning a
Schmidt photographic plate taken in the BJ band. Positions are very
accurate in this catalogue but magnitudes are not. This led us to
perform CCD imaging observations in the V and R bands to calibrate
these photographic magnitudes. A second catalogue (805 galaxies) gives
a list of galaxies with CCD magnitudes in the V and R bands for a much
smaller region in the centre of the cluster. These two catalogues will
be combined with a redshift catalogue of 509 galaxies by Durret et al.
(1997, subm.) to investigate the cluster properties at optical
wavelengths Durret et al. (1997, subm.), as a complement to our
previous X-ray studies (Pislar et al., 1997A&A...322...53P 1997A&A...322...53P; Lima-Neto
et al., 1997A&A...327...81L 1997A&A...327...81L).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 4232 Catalogue of 4232 galaxies from the
SERC-J 681 blue plate
table2.dat 73 805 Catalogue of 805 galaxies measured from CCD data
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See also:
J/A+AS/129/281 : ABCG 85 velocities catalogue (Durret+ 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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2- 5 I4 --- No Running number in the catalogue
8- 9 I2 h RAh Right ascension of the object (equinox J2000.0)
11- 12 I2 min RAm Right ascension of the object (equinox J2000.0)
14- 18 F5.2 s RAs Right ascension of the object (equinox J2000.0)
20 A1 --- DE- Declination sign
21- 22 I2 deg DEd Declination of the object (equinox J2000.0)
24- 25 I2 arcmin DEm Declination of the object (equinox J2000.0)
27- 30 F4.1 arcsec DEs Declination of the object (equinox J2000.0)
33- 36 F4.2 --- eps Ellipticity defined as sqrt([1-(b\a)]2)
39- 41 I3 deg PA position angle of the major axis
(from North to East)
45- 49 F5.2 mag BJmag BJ magnitude
51- 55 F5.2 mag Vmag V magnitude
57- 61 F5.2 mag Rmag R magnitude
64- 70 F7.1 arcsec Xpos X position (1)
72- 78 F7.1 arcsec Ypos Y position (1)
83- 87 A5 --- Name1 Cross-identifications with the list by
Malumuth et al. (1992AJ....104..495M 1992AJ....104..495M)
90- 93 A4 --- Name2 Cross-identifications with the list by
Beers et al. (1991AJ....102.1581B 1991AJ....102.1581B)
96-100 A5 --- Name3 Cross-identifications with the list by
Murphy (1984, Cat. J/MNRAS/211/637)
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Note (1): Position relative to the centre defined as that of the diffuse
X-ray emission of the cluster (see text)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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2- 4 I3 --- No Running number in the catalogue
6- 7 I2 h RAh Right ascension of the object (equinox J2000.0)
9- 10 I2 min RAm Right ascension of the object (equinox J2000.0)
12- 16 F5.2 s RAs Right ascension of the object (equinox J2000.0)
18 A1 --- DE- Declination sign
19- 20 I2 deg DEd Declination of the object (equinox J2000.0)
22- 23 I2 arcmin DEm Declination of the object (equinox J2000.0)
25- 28 F4.1 arcsec DEs Declination of the object (equinox J2000.0)
32- 34 F3.1 arcsec Rad Isophotal radius
36- 39 F4.2 --- eps Ellipticity e defined as sqrt([1-(b/a)]2)
41- 43 I3 deg PA [-89/111] Position angle of the major axis
(anticlockwise from North)
47- 51 F5.2 mag Vmag ? V magnitude
53- 57 F5.2 mag Rmag R magnitude
60- 65 F6.1 arcsec Xpos X position (1)
68- 73 F6.1 arcsec Ypos Y position (1)
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Note (1): Positon relative to the centre assumed to have coordinates:
00:41:51.90-09:18:17.0 (equinox J2000.0);
this centre was chosen to coincide with that of the diffuse X-ray
gas component as defined by Pislar et al. (1997A&A...322...53P 1997A&A...322...53P).
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Acknowledgements: Eric Slezak,
References:
Durret, Felenbok, Lobo, S 1997, A&AS, submitted
(End) Patricia Bauer [CDS] 13-Jun-1997