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J/AJ/113/905        HI observations of galaxies        (Pantoja+ 1997)
21-cm line observations of galaxies in the zone of avoidance.
       Pantoja C.A., Altschuler D.R., Giovanardi C., Giovanelli R.
      <Astron. J. 113, 905 (1997)>
      =1997AJ....113..905P
ADC_Keywords: Galaxies, spectra ; H I data ; Morphology


Abstract:
    We present H I 21-cm line observations of 543 galaxies at low galactic
    latitude in the Galactic Anticenter region of the Zone of Avoidance
    (4h≤α≤8h, 0°=<δ=<37°). The sample comprises 147
    catalogued objects (from UGC, CGCG, MCG, and IRAS) still missing a
    redshift measurement and a list of 369 objects selected from an
    extensive optical compilation of galaxy candidates in this area. The
    spectra were acquired using the 305-m Arecibo telescope and cover a
    velocity range from -350 to +13800km/s at a resolution of about
    16km/s. 196 galaxies were detected,59 of the catalogued ones and 137
    from the optical compilation. The H I derived properties are
    presented, as is a discussion regarding the redshift distribution in
    this region. Our data seem to be consistent with a link across the
    Zone of Avoidance between the Pisces-Perseus supercluster and
    Abell 569.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        69      369   Sample of observed galaxies from the optical catalog
table2.dat        56      174   Sample of galaxies from other catalogs.
table3.dat        78      196   H I detected galaxies.


See also:
 J/ApJ/449/527  : Galaxies in the zone of avoidance (Lu+ 1995)
 J/A+AS/110/269 : Galaxies in the "zone of avoidance". I. (Weinberger+, 1995)
 J/A+AS/117/1   : Galaxies in the "zone of avoidance". II. (Seeberger+, 1996)
 J/A+AS/117/369 : Galaxies in the "zone of avoidance". III. (Lercher+, 1996)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label    Explanations

   1-  7  A7    ---     Name     Galaxy name
       8  A1    ---     m_Name   [abcde] Multiplicity index on Name
  10- 11  I2    h       RAh      Right ascension (B1950.0)
  13- 14  I2    min     RAm      Right ascension (B1950.0)
  16- 19  F4.1  s       RAs      Right ascension (B1950.0)
      21  A1    ---     DE-      Declination sign
  22- 23  I2    deg     DEd      Declination (B1950.0)
  25- 26  I2    arcmin  DEm      Declination (B1950.0)
  28- 29  I2    arcsec  DEs      Declination (B1950.0)
  31- 35  A5    ---     POSS     POSS E print in which the object was discovered
  37- 39  F3.1  arcmin  a        Major axis
  41- 43  F3.1  arcmin  b        Minor axis
  45- 66  A22   ----    Com      Comment regarding the quality and appearance
                                  of the image
      69  A1    ---     HI       [YN] Object detected in H I (Y: yes, N: no)


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1- 11  A11   ---     Name      Galaxy name
  13- 14  I2    h       RAh       Right ascension (B1950.0)
  16- 17  I2    min     RAm       Right ascension (B1950.0)
  19- 22  F4.1  s       RAs       Right ascension (B1950.0)
      24  A1    ---     DE-       Declination sign
  25- 26  I2    deg     DEd       Declination (B1950.0)
  28- 29  I2    arcmin  DEm       Declination (B1950.0)
  31- 34  F4.1  arcsec  DEs       Declination (B1950.0)
  36- 45  A10   ---     MType     Morphological type
  47- 49  F3.1  arcmin  a         ? Major axis
      50  A1    ---     ---       [x]
  51- 53  F3.1  arcmin  b         ? Minor axis
      56  A1    ---     HI        [YN] Object detected in H I (Y: yes, N: no)


Byte-by-byte Description of file: table3.dat

   Bytes Format Units       Label     Explanations

   1- 11  A11   ---         Name      Galaxy name
      12  A1    ---         n_Name    [abcde*] Note on name (1)
  14- 15  I2    h           RAh       Right ascension (B1950.0)
  17- 18  I2    min         RAm       Right ascension (B1950.0)
  20- 23  F4.1  s           RAs       Right ascension (B1950.0)
      25  A1    ---         DE-       Declination sign
  26- 27  I2    deg         DEd       Declination (B1950.0)
  29- 30  I2    arcmin      DEm       Declination (B1950.0)
  32- 33  I2    arcsec      DEs       Declination (B1950.0)
  35- 39  I5    km/s        HVel      HI-derived systemic heliocentric velocity
  41- 42  I2    km/s        e_HVel    rms uncertainty on HVel
  44- 48  F5.2  Jy.km/s     SHI       HI line flux
  50- 53  F4.2  Jy.km/s     e_SHI     rms uncertainty on SHI
  56- 58  I3    km/s        W50       Line width measured at 50% of the peak
                                       level on each side of the profile
  60- 61  I2    km/s        e_W50     rms uncertainty on W50
  63- 67  F5.1  mJy         SHIp      Peak flux density of the HI feature
  70- 72  F3.1  mJy         rms       rms noise of the baselined spectrum
                                       measured outside the detected feature
  75- 78  F4.2 10+10solMass MHI       HI mass

Note (1):
    a : At this position lies a bright star, SAO 076738. It is a region
           with many absorption nebulae (b~-10°) with a diffuse object
           northeast of this IRAS source.
    b : This is a galaxy located below the galactic plane at b~-5° in
           a region with many absorption nebulae. It has a very faint image
           on the E print (it is not see on the O) and corresponds to the
           object with the largest H I mass in our sample
           (MHI=5.8x1010M☉).
    c : Possibly part of an interacting system based on the H I profile
           and on the neighborhood of other galaxies.
    d : The negative feature in the profile is probably another galaxy
           detected in the off scan but no obvious counterpart was found
           in the POSS prints.
    e : Pair of galaxies.
    * : indicates corrections vs the original publication (suggested by
        H. Andernach) and concerns the sources:
        0653+06    (0653+16 in the original publication)
        +02-18-008 (+02-18-08 in the original publication)
        0617+06    (0622+07 in the original publication)
        These corrections were effectively done on 28-May-1998


History:
  * October 1997: Prepared via OCR at CDS.
  * 28-May-1998: thanks to verifications done by H. Andernach
    () a few typographical errors were corrected;
    the modifications indicated at the end of the Note (1) above
    have also been made following H. Andernach's suggestions.
(End)                           James Marcout, Patricia Bauer [CDS]  02-Oct-1997