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J/other/PASA/16.113 New structure in Shapley supercluster (Drinkwater+, 1999)
New structure in the Shapley supercluster Drinkwater M.J., Proust D., Parker Q.A., Quintana H., Slezak E. <Publications - Astron. Soc. Australia, 16, 113 (1999)> =1999PASA...16..113D
ADC_Keywords: Clusters, galaxy ; Radial velocities Keywords: galaxies: clusters, distances and redshifts - large-scale structure of universe Abstract: We present new radial velocities for 306 bright (R<16) galaxies in a 77°2 region of the Shapley supercluster, measured with the FLAIR-II spectrograph on the UK Schmidt Telescope. The galaxies we measured were uniformly distributed over the survey area, in contrast to previous samples which were concentrated in several rich Abell clusters. Most of the galaxies (230) were members of the Shapley supercluster: they trace out two previously unknown sheets of galaxies linking the Abell clusters of the supercluster. In a 44°2 area of the supercluster excluding the Abell clusters, these sheets alone represent an overdensity of a factor of 2.0±0.2 compared to a uniform galaxy distribution. The supercluster is not flattened in the Declination direction as has been suggested in previous papers. Within our survey area the new galaxies contribute an additional 50% to the known contents of the Shapley supercluster, with a corresponding increase in its contribution to the motion of the Local Group. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 90 306 *Galaxies observed table3.dat 37 44 *Abell clusters in the Shapley region
Note on table2.dat and table3.dat: Objects are identified as [DPP99] HHMMSS.s+DDMMSS in Simbad.
See also: J/AJ/110/463 : Kinematics of the Shapley supercluster (Quintana+ 1995) J/A+AS/119/329 : VR photometry in the Shapley Supercluster (Slezak+, 1996) J/A+AS/120/357 : R magnitudes in four ESO fields (Infante+, 1996) J/A+AS/125/247 : Shapley Concentration galaxies velocities (Quintana+ 1997) J/MNRAS/296/599 : A3558 complex redshifts (Bardelli+, 1998) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (B1950) (corrected) 4- 5 I2 min RAm Right ascension (B1950) (corrected) 7- 10 F4.1 s RAs Right ascension (B1950) (corrected) 12 A1 --- DE- Declination sign (B1950) (corrected) 13- 14 I2 deg DEd Declination (B1950) (corrected) 16- 17 I2 arcmin DEm Declination (B1950) (corrected) 19- 20 I2 arcsec DEs Declination (B1950) (corrected) 22- 24 I3 --- Field Field number 26- 30 F5.2 mag Rmag R magnitude 32- 36 I5 km/s RV Radial velocity (corrected) 38- 40 I3 km/s e_RV rms uncertainty on RV (corrected) 42 A1 --- n_Note [*] corrections in 2004PASA...21...89D 44- 90 A47 --- Note Corrections from 2004PASA...21...89D (1)
Note (1): Some corrections, for positions or velocity, were published in Drinkwater et al., 2004PASA...21...89D. Corrections (table2 of 2004PASA...21...89D) ----------------------------------------------------------------------------- B1950 from D99 New J2000 Old RV New RV Type of correction ----------------------------------------------------------------------------- 13 04 08.4 -37 06 37 13 06 56.1 -37 22 09 position 13 12 05.7 -33 29 36 13 14 52.8 -32 45 27 position 13 14 37.9 -33 39 08 13 17 26.2 -33 55 36 position 13 15 21.3 -31 45 59 13 18 08.7 -32 01 06 position 13 18 06.6 -27 47 20 13 20 52.8 -28 13 06 position 13 19 39.1 -33 06 29 13 22 28.0 -33 29 03 position 13 24 21.4 -37 00 34 13 27 13.1 -36 25 34 position 13 24 28.2 -36 49 27 13 27 10.4 -37 05 00 position 13 29 40.1 -33 54 18 13 32 31.3 -33 09 42 position 13 31 39.7 -36 33 12 13 34 33.1 -36 48 32 15274 150 2398 17 velocity 13 33 21.5 -36 38 27 13 36 15.3 -36 53 45 15135 51 3897 79 velocity 13 35 47.0 -34 17 07 removed * 13 37 15.1 -34 05 41 13 30 06.0 -34 21 10 position 13 40 52.6 -34 49 27 13 43 46.5 -35 04 30 16227 183 14681 71 velocity 13 42 33.6 -36 31 58 13 45 29.1 -36 46 59 11531 64 7633 80 velocity 13 43 08.2 -33 29 39 13 46 01.4 -33 44 39 11662 44 24838 61 velocity 13 43 32.6 -35 50 50 removed * ----------------------------------------------------------------------------- Note: *: Original position was wrong, but the correct identification could not be determined
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (B1950) 4- 5 I2 min RAm Right ascension (B1950) 7- 8 I2 s RAs Right ascension (B1950) 10 A1 --- DE- Declination sign (B1950) 11- 12 I2 deg DEd Declination (B1950) 14- 15 I2 arcmin DEm Declination (B1950) 17- 18 I2 arcsec DEs Declination (B1950) 20- 24 I5 km/s cz ? Heliocentric radial velocity 26- 32 A7 --- Name Name 34 I1 --- Dist ? Distance in Abell radius 36- 37 A2 --- Ref Reference (1)
Note (1): References are as follows: I = Quintana et al. (1995, Cat. J/AJ/110/463, Paper I) II = Quintana et al. (1997, Cat. J/A+AS/125/247, Paper II) N = NASA/IPAC, Extragalactic Database (NED) B = Bardelli et al. (1998, Cat. J/MNRAS/296/599)
History: Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 31-Mar-2000
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