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J/A+A/352/39        Great Attractor region redshifts         (Woudt+, 1999)

Extragalactic Large-Scale Structures behind the Southern Milky Way. III. Redshifts Obtained at the SAAO in the Great Attractor region Woudt P.A., Kraan-Korteweg R.C., Fairall A.P. <Astron. Astrophys. 352, 39 (1999)> =1999A&A...352...39W (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts Keywords: galaxies: redshifts - galaxies: clusters of - zone of avoidance - large-scale structure of the Universe - ACO 3627 Abstract: In the third of a series of papers on large-scale structures behind the southern Milky Way, we report here on redshifts obtained at the South African Astronomical Observatory (SAAO) in the Great Attractor region (318°≲l≲340°, |b|≤10°, Woudt, 1998, Ph. D. Thesis, University of Cape Town). This region encompasses the peak in the reconstructed mass density field, associated with the Great Attractor (Kolatt et al., 1995MNRAS.275..797K, Dekel et al., 1999ApJ...522....1D) and covers the crossing of the Supergalactic Plane with the Galactic Plane. Our deep optical galaxy search in the Zone of Avoidance (ZOA) in this region (Woudt, 1998, Ph. D. Thesis, University of Cape Town) has resulted in the detection of 4423 galaxies with observed diameters larger than 0.2arcmin. We have obtained reliable redshifts for 309 galaxies of the 4423 galaxies with the ``Unit'' spectrograph (first with a Reticon, then with a CCD detector) at the 1.9-m telescope of the SAAO. An additional 13 tentative redshifts are presented. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 116 322 Redshifts of galaxies in the ZOA obtained at the SAAO table2.dat 99 22 Galaxies observed at the SAAO without reliable redshift table3.dat 91 82 Galaxies in our survey region with velocities from the literature table4.dat 113 34 Galaxies in our survey region with central velocity dispersion measurements
See also: VII/34 : ESO/Uppsala Survey of the ESO(B) Atlas (Lauberts 1982) J/A+A/297/617 : Hydra/Antlia extension redshifts (I) (Kraan-Korteweg+, 1995) J/A+AS/127/463 : Crux region redshifts (II) (Fairall+ 1998) J/A+A/415/9 : Redshifts behind the Southern Milky Way (IV) (Woudt+, 2004) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
2- 9 A8 --- WKK98 Identification of the galaxy as in (Woudt and Kraan-Korteweg, 1998) (1) 11- 18 A8 --- ESO Identification in Lauberts Catalogue (1982, Cat. VII/34) 20- 21 I2 h RAh Right ascension (B1950) 23- 24 I2 min RAm Right ascension (B1950) 26- 29 F4.1 s RAs Right ascension (B1950) 31 A1 --- DE- Declination (B1950) 32- 33 I2 deg DEd Declination (B1950) 35- 36 I2 arcmin DEm Declination (B1950) 38- 39 I2 arcsec DEs Declination (B1950) 42- 47 F6.2 deg GLON Galactic longitude 49- 54 F6.2 deg GLAT Galactic latitude 57- 59 I3 arcsec amaj Major axis 60 A1 --- --- [x] 61- 63 I3 arcsec amin Minor axis 65- 68 F4.1 mag Bmag B magnitude estimated from the IIIaJ ESO/SRC film copy 70- 74 A5 --- MType Morphological type 77- 81 I5 km/s HVa ? Heliocentric velocity from absorption line features 83- 85 I3 km/s e_HVa ? Error to absorption velocity 86 A1 --- n_HVa ([) 89- 93 I5 km/s HVe ? Heliocentric velocity from emission line features 95- 97 I3 km/s e_HVe ? Error of emission velocity 98 A1 --- n_HVe (]) ]: tentative redshift 100 A1 --- Code1 [1-6] Code for identified emission line (2) 102 A1 --- Code2 [3-7] Code for identified emission line (2) 104 A1 --- Code3 [4-7] Code for identified emission line (2) 106 A1 --- Code4 [5-7] Code for identified emission line (2) 108 A1 --- Code5 [6-7] Code for identified emission line (2) 110 A1 --- Code6 [7] Code for identified emission line (2) 112-116 A5 --- Rem Code for remarks to table 1 (3)
Note (1): "A Catalogue of 3760 Galaxies in the Zone of Avoidance in the Crux region", Woudt and Kraan-Korteweg, 1998. Note (2): 1: [OII] 3727Å 2: Hgamma 4340Å 3: Hbeta 4861Å 4: [OIII] 4959Å 5: [OIII] 5007Å 6: Halpha 6563Å 7: [NII] 6584Å Note (3): *: Redshifts are also available in the literature 1: WKK 4001: The redshift measured at the SAAO for this galaxy (v=5937±250km/s) is in disagreement with the value quoted in the literature (v=4700±100km/s, Fairall, 1981MNRAS.196..417F) 2: WKK 5792: The redshift measured at the SAAO for this galaxy (v=13487±101km/s) is in disagreement with the value quoted in the literature (v=3500±70km/s, di Nella et al., 1997, Cat. J/MNRAS/287/472). There is a positional mismatch of 1.1 arcminutes between WKK 5792 and the galaxy quoted by di Nella et al. (1997, Cat. J/MNRAS/287/472). However, after visual re-examination, no galaxy is seen on the IIIaJ Sky Survey at the position of di Nella's galaxy and we believe that this velocity should not be trusted. 3: WKK 6180/6212: The redshifts measured for WKK 6180 and WKK 6212 (v=4619±127km/s and 3196±95km/s, respectively) are in disagreement with the value quoted in the literature (v=3100km/s and v=4911km/s, respectively, West et al., 1981A&AS...46...57W). This might be due to an identification error 4: WKK 7055: The spectrum is contaminated by the light of a Galactic foreground star. However, a reliable redshift could be obtained. GR6: These galaxies have been observed at higher spectral resolution with grating 6 (100Å/mm), see also Sect.∼2.1. Sy1: This galaxy, WKK 6092, has been classified as Seyfert 1 (Woudt et al., 1998A&A...338....8W)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
2- 9 A8 --- WKK98 Identification of the galaxy as in (Woudt and Kraan-Korteweg, 1998) (1) 11- 18 A8 --- ESO Identification in Lauberts Catalogue (1982, Cat. VII/34) 20- 21 I2 h RAh Right ascension (B1950) 23- 24 I2 min RAm Right ascension (B1950) 26- 29 F4.1 s RAs Right ascension (B1950) 31 A1 --- DE- Declination (B1950) 32- 33 I2 deg DEd Declination (B1950) 35- 36 I2 arcmin DEm Declination (B1950) 38- 39 I2 arcsec DEs Declination (B1950) 42- 47 F6.2 deg GLON Galactic longitude 49- 54 F6.2 deg GLAT Galactic latitude 57- 59 I3 arcsec amaj Major axis 60 A1 --- --- [x] 61- 63 I3 arcsec amin Minor axis 65- 68 F4.1 mag Bmag B magnitude estimated from the IIIaJ ESO/SRC film copy 70- 74 A5 --- MType Morphological type 77- 99 A23 --- Rem Remark describing reason for non-detection of velocity
Note (1): "A Catalogue of 3760 Galaxies in the Zone of Avoidance in the Crux region", Woudt and Kraan-Korteweg, 1998.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
2- 9 A8 --- WKK98 Identification of the galaxy as in (Woudt and Kraan-Korteweg, 1998) (1) 11- 18 A8 --- ESO Identification in Lauberts Catalogue (1982, Cat. VII/34) 20- 21 I2 h RAh Right ascension (B1950) 23- 24 I2 min RAm Right ascension (B1950) 26- 29 F4.1 s RAs Right ascension (B1950) 31 A1 --- DE- Declination (B1950) 32- 33 I2 deg DEd Declination (B1950) 35- 36 I2 arcmin DEm Declination (B1950) 38- 39 I2 arcsec DEs Declination (B1950) 42- 47 F6.2 deg GLON Galactic longitude 49- 54 F6.2 deg GLAT Galactic latitude 57- 59 I3 arcsec amaj Major axis 60 A1 --- --- [x] 61- 63 I3 arcsec amin Minor axis 65- 68 F4.1 mag Bmag B magnitude estimated from the IIIaJ ESO/SRC film copy 70- 74 A5 --- MType Morphological type 77- 81 I5 km/s HV Heliocentric velocity 83- 85 I3 km/s e_HV ? Error on heliocentric velocity 89- 90 I2 --- r_HV [1-17] Code for source of the velocity (2)
Note (1): "A Catalogue of 3760 Galaxies in the Zone of Avoidance in the Crux region", Woudt and Kraan-Korteweg, 1998. Note (2): 1: Dressler 1991, Cat. J/ApJS/75/241 2: di Nella et al. 1997, Cat. J/MNRAS/287/472 3: Fisher et al., 1995, Cat. VII/185 4: Cote et al., 1997AJ....114.1313C 5: Strauss et al., 1992, Cat. II/174 6: Jones & McAdam, 1992, Cat. J/ApJS/80/137 7: Huchtmeier & Richter, 1989H&RHI.C......0H 8: Webster, 1979MNRAS.186...31W 9: Visvanathan & Yamada, 1996, Cat. J/ApJS/107/521 10: Mould et al., 1991ApJ...383..467M 11: Fairall, 1988MNRAS.230...69F 12: Davies et al., 1989MNRAS.236..171D 13: Fairall, 1983MNRAS.203...47F 14: Schmidt & Boller, 1992AN....313..189S, See Cat. VII/161 15: Fairall, 1981MNRAS.196..417F 16: Whiteoak & Gardner, 1977AuJPh..30..187W 17: Corwin & Emerson, 1982MNRAS.200..621C
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
2- 9 A8 --- WKK98 Identification of the galaxy as in (Woudt and Kraan-Korteweg, 1998) (1) 11- 18 A8 --- ESO Identification in Lauberts Catalogue (1982, Cat. VII/34) 20- 21 I2 h RAh Right ascension (B1950) 23- 24 I2 min RAm Right ascension (B1950) 26- 29 F4.1 s RAs Right ascension (B1950) 31 A1 --- DE- Declination (B1950) 32- 33 I2 deg DEd Declination (B1950) 35- 36 I2 arcmin DEm Declination (B1950) 38- 39 I2 arcsec DEs Declination (B1950) 42- 47 F6.2 deg GLON Galactic longitude 49- 54 F6.2 deg GLAT Galactic latitude 57- 59 I3 arcsec amaj Major axis 60 A1 --- --- [x] 61- 63 I3 arcsec amin Minor axis 65- 68 F4.1 mag Bmag B magnitude estimated from the IIIaJ ESO/SRC film copy 70- 74 F5.3 mag E(B-V) Galactic reddening E(B-V) (Schlegel et al., 1998ApJ...500..525S) 76- 80 A5 --- MType Morphological type 82- 86 I5 km/s HVa Heliocentric velocity from absorption features 88- 90 I3 km/s e_HVa Error absorption velocity 93- 95 I3 km/s sigma Measured central velocity dispersion 98 I1 --- o_sigma Number of template stars used for the determination of the central velocity dispersion 102-106 F5.3 [km/s] log(sCor) Logarithm of the aperture-corrected central velocity dispersion 108-112 F5.3 [km/s] e_log(sCor) Error to the aperture-corrected central velocity dispersion
Note (1): "A Catalogue of 3760 Galaxies in the Zone of Avoidance in the Crux region", Woudt and Kraan-Korteweg, 1998.
Acknowledgements: Patrick Alan Woudt
(End) Patricia Bauer [CDS] 16-Nov-1999
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