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Catalog of Galaxies behind the Milky Way

Vol. 1 l=210 to 230 degrees

M. Saito, H. Ohtani, A. Asonuma, N. Kashikawa, T. Maki, S. Nishida and T. Watanabe

Vol. 2 l=230 to 250 degrees

M. Saito, H. Ohtani, A. Baba, N. Hotta, S. Kameno, S. Kurosu, K. Nakada and T. Takata

Department of Astronomy, Kyoto University Sakyo-ku, Kyoto, 606-01 Japan


: This catalog, giving about 7000 galaxies behind the Milky Way between l = 210 degrees and 250 degrees, represents a systematic search for galaxies by means of 32 film copies of the UK Schmidt Southern Infrared Atlas on the Milky Way covering about 900 square degrees. In the search galaxies with apparent sizes greater than 0.1 mm on film ( 6.7 arcsec in size ) were detected by visual inspection. The material and procedure of search are described as well as the detectability of galaxies in paper I and paper II appended before Vol. 1 and Vol. 2 of the catalog, respec- tively, which have been published in Publ. Astron. Soc Japan, Vol. 42 (1990) and Vol. 43 (1991). The parameters of cataloged galaxies are also explained in paper I. Cross-identifications with other catalogs are shown in the last column.

The search was performed by undergraduate students of a galactic astronomy program in Department of Astronomy, Kyoto University, in 1988 and 1989. Since the main researchers changed from the search in 1988 ( Vol. 1 ) to that in 1989 ( Vol. 2 ), a surface brightness level deter- mining the extents of galaxy images somewhat differs between Vol. 1 and Vol. 2, yielding a difference of mean number densities of the detected galaxies between Vol. 1 and Vol. 2. The difference is examined in paper II. The detectability of galaxies, especially of smallest galaxies, increased in the overlap zones of adjacent fields of the Atlas; the effects are discussed in a paper ( Yamada and Saito 1991, to appear in Publ. Astron. Soc. Japan, Vol. 43 ). In spite of such inhomogeneities in search for galaxies, the catalog is useful as a finding list of bright galaxies, peculiar galaxies, and nearby clusters of galaxies in the region behind the Milky Way.

The machine-readable version of the catalog has been made through efforts of Mr. Shogo Nishida, Mr. Tadafumi Takata, and Professor Shiro Nishimura. This will be distributed upon request from Astronomical Data Analysis Center of the National Astronomical Observatory of Japan and other astronomical data centers.

This work was supported by the Grant-in-Aid for General Scientific Research (01420002) of the Japanese Ministry of Education, Science, and Culture.

June 1991 Mamoru Saito

Reference :
Contribution from the Department of Astronomy, Kyoto University, No. 300

File Summary :

 File    Content        Format   Record Length   Number of Records
   1     Description      FB          80               111
   2     Data (Vol. 1)    FB         125              2411
   3     Data (Vol. 2)    FB         125              4633

Byte-by-Byte Description of the Data Files ( the Second and Third Files ) :

   Bytes       Format       Notes

  1 -   4       I4         CGMW number
  5 -   7       I3         Field number of the ESO/SERC Southern Sky Survey
  8 -  13       F6.1       X coordinate on the film in millimeter
 14 -  19       F6.1       Y coordinate on the film in millimeter
 20 -  21       I2         Hours of R.A. ( Epoch 1950.0 )
 22 -  23       I2         Minutes of R.A.
 24 -  25       I2         Seconds of R.A.
 26             A1         Sign of declination
 27 -  28       I2         Degrees of declination
 29 -  32       F4.1       Minutes of declination
 33 -  39       F7.3       Galactic longitude in degrees
 40 -  46       F7.3       Galactic latitude in degrees
 47 -  49       F3.1       Major diameter on the film in millimeter
 50 -  52       F3.1       Minor diameter on the film in millimeter
 53 -  55       A3         Morphological type class
                           ( E : Elliptical, I : Irregular, S : Spiral,
                             SB : Barred Spiral )
 56 -  65       A10        Feature
                           ( Bright, Faint : for suface brightness,
                             Asymm, Ring : for morphology,
                             Pair, Triple : for close association ( If
                               accompanying galaxies are almost in the
                               same position, they are not listed in the
                               catalog. ),
                             PN+galaxy : a foreground planetary nebula
                               overlaps a galaxy )
 66 - 125       A60        Cross identifications in other catalogs


The generation of machine-readable files and the data validation are carried out by the collaboration of authors and the Astronomical Data Analysis Center of the National Astronomical Observatory, Japan. ADS Astronomy Abstract Service

 Title:              A Search for Galaxies behind the Milky Way at Aquila
                     and Sagittarius
                     SAITO, MAMORU
 Affiliation:        AA(Department of Astronomy, Faculty of Science, Kyoto
                     University, Sakyo-ku, Kyoto 606-01})
 Journal:            Publ. of the Astronomical Society of Japan, v.48,
 Publication Date:   10/1996
 Origin:             PASJ
 Abstract Copyright: (c) 1996: Astronomical Society of Japan
 Bibliographic Code: 1996PASJ...48..679R


We searched for galaxies using Schmidt atlases in a Milky Way region of about 800 square degrees around l =~ 8(deg) to 43(deg) and b =~ -17(deg) to 17(deg) . The surveyed region is located between the northern Local void and the Ophiuchus void. We detected about 5300 galaxy candidates, which have galaxy-like images with sizes larger than 0.'1. Of these, only 30 have been given in galaxy catalogs and another 74 are associated with IRAS point sources containing 18 IRAS galaxies with known redshifts. We made a catalog of detected objects in which the position in (alpha , delta ) and (l, b), size, and features of image and multiplicity are given. The sky distribution of detected objects shows the presence of two clusters of galaxies and a group of nearby galaxies located around l=33(deg) , b=-15(deg) with cz=1500 km s(-1) .