KUG (G0): KISO ultraviolet-excess galaxies, lists 1-10 (19910721)
FILES:
File #Galaxies
kug_hi.g0 350 (galaxies with high UV excess)
kug_med.g0 1900 (galaxies with medium UV excess)
kug_low.g0 3147 (galaxies with low UV excess)
CONTENTS: Ultraviolet-excess galaxies from the KISO survey, lists 1-10
DATASET: These files come in HyperSky dataset G-9, version 19910721 Availability on HyperSky CD-ROM: Vol. 1 (1993)
DESCRIPTION: These datafiles contain a total of 5347 galaxies from lists 1-10 of the KISO SURVEY FOR ULTRAVIOLET-EXCESS GALAXIES, by Bunshiro Takase and Nagako Miyauchi-Isobe of the Tokyo Astonomical Observatory.
The galaxies in the KUG lists are the result of multi-color (U,G,R) plate surveys of ultraviolet-excess (UVX) galaxies, which have been carried out continuously since 1978 with the Kiso 105-cm Schmidt telescope of the Tokyo Astronomical Observatory. The Kiso surveys build upon previous surveys of blue and active galaxies. These surveys include pioneering work by Haro (44 blue galaxies, 1956), Mitchell et al (412 UVX galaxies, 1982) and the Markarian lists of 1500 ultraviolet continuum galaxies (1982 and later; available in HyperSky dataset G-3).
The galaxies found in the Kiso surveys are known collectively as Kiso UVX Galaxies, or KUGs. The KUGs are found by taking three exposures on the same plate using ultraviolet, green, and red filters. The exposures are adjusted so that a star of spectral type A0 has equally bright images through all filters. If the galaxy UV image is brighter than the green and/or red images, it indicates a UV-excess galaxy.
The plan of the KUG surveys is to eventually cover all sky areas which either contain five or more Markarian galaxies, or lie along the 180-degree circle of galactic longitude. Currently, lists 1-10 contain galaxies in the declination range -15<Dec<+90.
Users interested in additional details on the survey lists should consult the following references:
Paper 1: Annals of the Tokyo Astron. Obs., 2nd Series, 19, 595, 1984.
Paper 2: ibid, 20, 237, 1985.
Paper 3: ibid, 20, 335, 1985.
Paper 4: ibid, 21, 127, 1986.
Paper 5: ibid, 21, 181, 1986.
Paper 6: ibid, 21, 251, 1987.
Paper 7: ibid, 21, 363, 1987.
Paper 8: ibid, 22, 41, 1988.
Paper 9: Publ. of the National Obs. of Japan, 1, 11, 1989.
Paper 10: ibid, 1, 97, 1989.
Additional survey lists are already in preparation.
DATA: The HyperSky datafile contains the following data from the catalog:
COORDINATES: Equatorial coordinates are stored in the datafiles at equinox 2000, having been precessed from equinox 1950 coordinates in the Kiso lists.
MAG: the apparent magnitude from the first-listed alternate catalog. See below ("m=") for more details on magnitudes.
IDENTIFICATION: The KUG name, composed of the equinox 1950 RA and Dec coordinate values.
COMMENTS: The comment lines contain the following information, provided if available for each galaxy:
* An optional line beginning with an equal (=) sign, followed by the name of the galaxy in various alternate catalogs. Catalog names are abbreviated as follows: A:Arp, H:Haro, I:IC(Index Catalog), M:MCG(Morphological Catalog of Galaxies), MK:MKG(Markarian), N:RNGC(Revised New General Catalog), U:UGC (Uppsala Galaxy Catalog), V:VV (Vorontsov-Velyaminov), Z:ZWG(Zwicky), nZW(Zwicky list n, n=1-8). Multiple alternate names are separated by commas.
* A line starting with "UV=", giving the degree of ultraviolet excess as one of { Hi(high), Med(medium), Low }.
* A line starting with "t=" giving the following information:
"t=" is followed by the morphological type, according to the following classification scheme:
Ic : Irregular with clumpy HII regions
Ig : Irregular with conspicuously giant HII region
Pi : Pair of interacting components
Pd : Pair of detached components
Sk : Spiral with knots of HII regions along arms
Sp : Spiral with peculiar bar and/or nucleus
C : Compact
"m=" is followed by the apparent magnitude as given in the Kiso lists. This magnitude is taken from the first alternate catalog (above), or if followed by a colon, is a rough estimate from the Palomar Sky Survey blue print.
Dxd' is the image size (major diameter x minor diameter) in arc minutes, roughly measured from the Palomar Sky Survey blue print with a 15 power magnifier.
* A line starting with a "#", of the general form "#nn Ammmm:ooo". The first number (#nn) is the Kiso survey list number (1-10) in which the galaxy appears. The second number (Ammmm) is the Kiso survey area (field) number, and the third number (:ooo) is the running number of the galaxy within that area (field).