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Detailed Description of J/A+A/380/441 :
Galaxies behind Southern Milky Way. II. (Woudt+, 2001)

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Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.
J/A+A/380/441       Galaxies behind Southern Milky Way. II.  (Woudt+, 2001)
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A catalogue of galaxies behind the Southern Milky Way.
II. The Crux and Great Attractor regions (l=289-338°)
    Woudt P.A., Kraan-Korteweg R.C.
   <Astron. Astrophys. 380, 441 (2001)>
   =2001A&A...380..441W
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ADC_Keywords: Clusters, galaxy ; Galaxies, optical ; Galaxies, IR ; Morphology

Keywords: catalogues - surveys - ISM: dust, extinction -
          galaxies: fundamental parameters -
          cosmology: large-scale structure of the Universe

Abstract:
    In this second paper of the catalogue series of galaxies behind the
    southern Milky Way, we report on the deep optical galaxy search in the
    Crux region (289°<~l<~318° and -10°<~b<~10°) and the
    Great Attractor region (316°<~l<~338° and
    -10°<~b<~10°). The galaxy catalogues are presented, a brief
    description of the galaxy search given, as well as a discussion on the
    distribution and characteristics of the uncovered galaxies. A total of
    8183 galaxies with major diameters D>~0.2 arcmin were identified in
    this ~850 square degree area: 3759 galaxies in the Crux region and
    4423 galaxies in the Great Attractor region. Of the 8183 galaxies, 229
    (2.8%) were catalogued before in the optical (3 in radio) and 251
    galaxies have a reliable (159), or likely (92) cross-identification in
    the IRAS Point Source Catalogue (3.1%). A number of prominent
    overdensities and filaments of galaxies are identified. They are not
    correlated with the Galactic foreground extinction and hence
    indicative of extragalactic large-scale structures. Redshifts obtained
    at the South African Astronomical Observatory (SAAO) for 518 of the
    newly catalogued galaxies in the Crux and Great Attractor regions
    (Fairall et al., 1998, Cat. J/A+AS/127/463; Woudt et al., 1999, Cat.
    J/A+A/352/39) confirm distinct voids and clusters in the area here
    surveyed. With this optical galaxy search, we have reduced the width
    of the optical `Zone of Avoidance' for galaxies with
    extinction-corrected diameters larger than 1.3' from extinction levels
    A_B>~1.0mag to A_B>~3.0mag: the remaining optical Zone of Avoidance is
    now limited by |b|<~3° (see Fig. 16).

File Summary:

FileName Lrecl Records Explanations
× 80 . This file × ReadMe 80 . This file × table1.dat 163 8183 Galaxies behind the southern Milky Way × table3.dat 140 342 IRAS galaxies behind the southern Milky Way
See also: VII/209 : Galaxies Behind the Milky Way (Saito+ 1990-91; Roman+ 1996-98) J/A+AS/141/123 : Galaxies behind Southern Milky Way (Kraan-Korteweg 2000) J/A+A/352/39 : Great Attractor region redshifts (Woudt+, 1999) J/A+AS/127/463 : Crux region redshifts (Fairall+ 1998) J/ApJS/89/57 : IRAS galaxies behind southern Milky Way (Yamada+, 1993) II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
2- 5 I4 --- WKK98 Running number of identified galaxy (1) 7- 14 A8 --- OtherID Other optical identification 16- 17 A2 --- Code Code for cross-identification in IRAS PSC (G1) 20- 21 I2 h RA1h Right ascension (B1950) 23- 24 I2 min RA1m Right ascension (B1950) 26- 29 F4.1 s RA1s Right ascension (B1950) 31 A1 --- DE1- Declination sign (B1950) 32- 33 I2 deg DE1d Declination (B1950) 35- 36 I2 arcmin DE1m Declination (B1950) 38- 39 I2 arcsec DE1s Declination (B1950) 42- 43 I2 h RAh Right ascension (J2000) 45- 46 I2 min RAm Right ascension (J2000) 48- 51 F4.1 s RAs [0/60] Right ascension (J2000) 53 A1 --- DE- Declination sign (J2000) 54- 55 I2 deg DEd Declination (J2000) 57- 58 I2 arcmin DEm Declination (J2000) 60- 61 I2 arcsec DEs [0/60] Declination (J2000) 64- 69 F6.2 deg GLON Galactic longitude 71- 76 F6.2 deg GLAT Galactic latitude 79- 81 A3 --- ESOField ESO/SRC Field number 83- 88 F6.1 mm Xpos X coordinate in mm from center of field 90- 95 F6.1 mm Ypos Y coordinate in mm from center of field 97- 99 I3 arcsec amaj Major axis (arcsec) 100 A1 --- --- [x] 101-103 I3 arcsec amin Minor axis (arcsec) 105-108 F4.1 mag B25mag Estimated B25 magnitude 110-113 F4.2 mag E(B-V) Extinction E(B-V) according to Schlegel et al. 1998ApJ...500..525S 115-126 A12 --- MType Morphological type (2) 127-162 A36 --- Rem Remarks
Note (1): No. 1 to 3760: The Crux region No. 3761 to 8183: The Great Attractor region Note (2): Morphological classification (from Kraan-Korteweg, 2000, Cat. J/A+AS/141/123) The morphological types are coded similarly to the precepts of the RC2 (de Vaucouleurs et al., 1976, Cat. VII/112). Due to the varying foreground extinction a homogenous and detailed type classification could not always be accomplished and some codes were added. - In the first column (byte 115), a question mark denotes the uncertainty about the galaxian nature of the object. - In the second column (bytes 117-121), the code F for the Hubble type E-S0 (T=-3 in the RC2 classification) was added to the normal designations of E, L, S and I. - In byte 131, the subtypes E, M and L are introduced next to the general subtypes 0 to 9. They stand for early spiral (S0/a-Sab), middle spiral (Sb-Sd) and late spiral or irregular (Sdm-Im). The cruder subtypes are a direct indication of the fewer details visible on the obscured galaxy image. - The questionmark at the end marks uncertainty of the main type, the colon uncertainty in the subtype. - The third column (byte 123) marks the orientation of the galaxy: E, N, F, V stands for edge-on, nearly edge-on, face-on and nearly face-on. - The fourth subcolumn (byte 125) indicates the superposition of a single star (1) or multiple stars (S) on the galaxy.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1 A1 --- --- [I] for IRAS name 2- 11 A10 --- IRAS Identification in IRAS PSC (Cat. II/125) 14 A1 --- Yamada [Y*] Cross-identification in Yamada et al., 1993, Cat. J/ApJS/89/57 (1) 17- 18 A2 --- Code Category of identification (G1) 20- 23 I4 --- WKK98 Running number of identified galaxy (from Table 1) 25 A1 --- ESO [L] Identification in Lauberts catalog (1982, Cat. VII/34) 28- 29 I2 h RA1h Right ascension (B1950) 31- 32 I2 min RA1m Right ascension (B1950) 34- 37 F4.1 s RA1s Right ascension (B1950) 39 A1 --- DE1- Declination sign (B1950) 40- 41 I2 deg DE1d Declination (B1950) 43- 44 I2 arcmin DE1m Declination (B1950) 46- 47 I2 arcsec DE1s Declination (B1950) 50- 55 F6.2 deg GLON Galacitic longitude 57- 62 F6.2 deg GLAT Galacitic latitude 64- 66 I3 arcsec amaj Major axis (arcsec) 67 A1 --- --- [x] 68- 70 I3 arcsec amin Minor axis (arcsec) 72- 75 F4.1 mag B25mag Estimated B25 magnitude 79- 83 A5 --- MType Morphological type 85- 87 I3 arcsec DeltaPos Positional offset in arcsec (IRAS - optical) 89- 94 F6.2 Jy F12um Flux density at 12 micron 96-101 F6.2 Jy F25um Flux density at 25 micron 103-108 F6.2 Jy F60um Flux density at 60 micron 110-115 F6.2 Jy F100um Flux density at 100 micron 118 A1 --- q_F12um Flux quality at 12 micron (2) 120 A1 --- q_F25um Flux quality at 25 micron (2) 122 A1 --- q_F60um Flux quality at 60 micron (2) 124 A1 --- q_F100um Flux quality at 100 micron (1) 127-132 F6.2 --- IRAS1 IRAS color 1: (f12 x f25) / (f60 x f60) 134-139 F6.2 --- IRAS2 IRAS color 2: f100 / f60
Note (1): Y: galaxy listed by Yamada et al., 1993, Cat. J/ApJS/89/57 *: the IRAS PSC source satisfies all the Yamada et al. selection criteria, yet was not listed in Yamada's catalogue. Note (2): The IRAS flags are coded as: 1 = lower limit 2 = uncertain flux 3 = good flux quality
Global notes: Note (G1): Quality of the IRAS cross-correlation is explained in the paper. They are schematically: I = certain IRAS connection P = possible match in the IRAS PSC Q = questionable (unlikely) match in the IRAS PSC The code may be followed by a number indicating the equally possible galaxy counterparts for a given IRAS source. N = cross-identification is not accepted
History: On 12-Apr-2002, in table1.dat, For WKK98 2542, L174-001 modified in L174-B 1 For WKK98 7328, FGC1256 modified in FGCE 1256 Acknowledgements: Patrick Woudt pwoudt@artemisia.ast.uct.ac.za ================================================================================ (End) Patricia Bauer [CDS] 06-Nov-2001