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. =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: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- See also: J/A+AS/139/525 : Abell 496 heliocentric velocities (Durret+ 1999) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- Note (1): Coordinates of the X-ray centre: 04:33:37.9-13:15:47 (J2000.0) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- Note (1): Coordinates of the X-ray centre: 04:33:37.9-13:15:47 (J2000.0) -------------------------------------------------------------------------------- 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