J/A+AS/139/559 Abell 496 photometric catalogue (Slezak+, 1999)
A photometric catalogue of galaxies in the cluster Abell 496.
Slezak E., Durret F., Guibert J., Lobo C.
<Astron. Astrophys. Suppl. Ser. 139, 559 (1999)>
=1999A&AS..139..559S 1999A&AS..139..559S
ADC_Keywords: Clusters, galaxy ; Magnitudes
Keywords: galaxies: clusters: individual: Abell 496 - galaxies: clusters of
Description:
Two catalogues of galaxies in the direction of the cluster Abell 496
are presented. The first one includes 3,879 galaxies located in a
region roughly ±1.3 degree from the cluster centre ; it has been
obtained by scanning part of a Schmidt photographic plate taken in the
Bj band. Positions are very accurate but magnitudes are not. A second
catalogue gives a list of galaxies with CCD magnitudes in the V (239
galaxies) and R (610 galaxies) bands for a much smaller region in the
centre of the cluster.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 3879 Galaxy candidates from the SRC-J 621 plate
table2.dat 76 610 Galaxy candidates from CCD imaging
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See also:
J/A+AS/139/525 : Abell 496 heliocentric velocities (Durret+ 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 -- Seq1 Running number
6 I1 h RAh Right ascension (J2000.0)
8- 9 I2 min RAm Right ascension (J2000.0)
11- 16 F6.3 s RAs Right ascension (J2000.0)
18 A1 --- DE- Declination sign (J2000.0)
19- 20 I2 deg DEd Declination (J2000.0)
22- 23 I2 arcmin DEm Declination (J2000.0)
25- 29 F5.2 arcsec DEs Declination (J2000.0)
31- 35 F5.1 arcsec amaj Half major axis
38- 40 F3.1 -- e Eccentricity
42- 44 I3 deg PA Position angle of the major axis
46- 49 F4.1 mag bjmag bj magnitude
52- 58 F7.1 arcsec Xpos X position relative to the X-ray centre (1)
60- 66 F7.1 arcsec Ypos Y position relative to the X-ray centre (1)
68- 73 F6.1 arcsec Dist Distance to the cluster centre
75- 79 I5 -- MAMA MAMA catalogue reference number
82- 84 I3 --- Seq2 ? Number in table2
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Note (1): Coordinates of the X-ray centre:
04:33:37.9-13:15:47 (J2000.0)
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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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1- 3 I3 -- Seq2 Running number
5 I1 h RAh Right ascension (J2000.0)
7- 8 I2 min RAm Right ascension (J2000.0)
10- 14 F5.2 s RAs Right ascension (J2000.0)
16 A1 --- DE- Declination sign (J2000.0)
17- 18 I2 deg DEd Declination (J2000.0)
20- 21 I2 arcmin DEm Declination (J2000.0)
23- 27 F5.2 arcsec DEs Declination (J2000.0)
29- 32 F4.2 -- e Eccentricity
34- 36 I3 deg PA Position angle of the major axis
(from North to East)
38- 42 F5.2 mag Vmag ? V magnitude
44- 48 F5.2 mag Rmag R magnitude
50- 56 F7.1 arcsec Xpos X position relative to the X-ray centre (1)
58- 64 F7.1 arcsec Ypos Y position relative to the X-ray centre (1)
66- 71 F6.1 arcsec Dist Distance to the cluster centre
73- 76 I4 -- Seq1 ? Number in Table 1
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Note (1): Coordinates of the X-ray centre:
04:33:37.9-13:15:47 (J2000.0)
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Acknowledgements: Florence Durret
History:
* 12-Nov-1999: preparation of the tables
* 17-Oct-2000: Seq1=1828 (table1) and Seq2=466 (table2), which were
cross-identified inadvertently (mail exchange with Eric Slezak)
(End) Patricia Bauer [CDS] 12-Nov-1999