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VII/214 APS Galaxies in the North Galactic Pole (Cabanela, 1999)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
aps.dat catalog.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VII/214
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Beginning of ReadMe :VII/214 APS Galaxies in the North Galactic Pole (Cabanela, 1999)
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Galaxy properties from a diameter-limited catalog
Cabanela J.E.
<Ph.D. Thesis, University of Minnesota (1999)>
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ADC_Keywords: Galaxy catalogs ; Photometry ; Photometry, surface ; Surveys
Description:
This catalog contains information for 217768 unique objects (all plate
overlap duplicates have been eliminated) with major-axis diameters
greater than 10 arcseconds in O (blue) and identified as "non-stellar"
by the APS. Care has been taken to remove known sources of
non-extragalactic contamination including SAO star halos, POSS I ghost
images of bright stars, low surface brightness material around bright
galaxies, and Galactic globular clusters.
This version of the MAPS-NGP galaxy catalog preserves the full
resolution of data as stored in the Revised Minnesota Automated Plate
Scanner Catalog of the POSS I (a.k.a. StarBase2). For more through
documentation of how these image parameters are obtained, you may
visit the APS WWW site http://aps.umn.edu/ or look at some of the
references listed at the end of this README file.
Abstract:
(of PhD Thesis, from Minessota)
I am using the Minnesota Automated Plate Scanner (APS) to construct
two galaxy catalogs. The Minnesota Automated Plate Scanner
Pisces-Perseus Survey (MAPS-PP) is used to search for modern-day
remnant signatures of large-scale structure formation processes,
specifically, galaxy alignments relative to surrounding large-scale
structure. Weak evidence for such alignments is found, although the
type of alignments seen don't strongly support any one large-scale
structure formation model.
Comparison of the MAPS-PP to pre-existing galaxy catalogs has led to
the discovery that the Uppsala General Catalog and Third Reference
Catalog of Galaxies exhibit a very strong measurement bias: their
diameters are measured to different isophotes at different galaxy
inclinations. Therefore previous determinations of the diameter
function and the internal extinction properties of other galaxies
(most of which have relied on one of these two galaxy catalogs) have
suffered from a biased diameter measurement.
I avoid this bias by using the APS data (which is obtained using
automated computer-based criteria for measuring the structural
properties of images digitized from photographic plates) to construct
a catalog of over 200,000 galaxies within 30 degrees of the North
Galactic Pole (the MAPS-NGP). The MAPS-NGP is the deepest galaxy
catalog constructed over such a large area of the sky and used to
re-evaluate previous investigations of the internal extinction in
galaxies.