The Optical Redshift Survey: Sample Selection and the Galaxy Distribution

Details The Optical Redshift Survey: Sample Selection and the Galaxy Distribution The Optical Redshift Survey: Sample Selection and the Galaxy Distribution

1994-06-16

arxiv.org/abs/astro-ph/9406049v1

Astrophys.J. 446 (1995) 457

Astronomy and Astrophysics

Astrophysics

Submitted to ApJ. 18 pages of plain Tex; figures not included. Postscript text with figures available via anonymous ftp to eku

Scientific paper

10.1086/175805

This is the first in a series of papers describing the {\it Optical Redshift Survey} (ORS), a redshift survey of optically selected galaxies covering 98\% of the sky above $|b| = 20^\circ$ (8.09 ster). The survey is drawn from the UGC, ESO, and ESGC galaxy catalogues, and contains two sub-samples, one complete to a $B$ magnitude of 14.5, the other complete to a $B$ major axis diameter of $1.9^\prime$. The entire sample consists of 8457 objects, of which redshifts are now available for 8286; 171 objects remain without measured redshifts. The ORS provides the most detailed and homogeneous sampling of the large-scale galaxy distribution to date in these areas. The density field of bright optical galaxies is well-defined to $8000 \kms$, and is dominated by the Virgo, Telescopium-Pavo-Indus, Hydra-Centaurus, Pisces-Perseus, and Coma-A1367 Superclusters. The dense sampling provided by ORS allows a detailed analysis of the galaxy density field, and will be used to test its dependence on morphology and other galaxy parameters.

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