A medium-deep redshift survey of a minislice at the north Galactic pole

Details A medium-deep redshift survey of a minislice at the north Galactic pole A medium-deep redshift survey of a minislice at the north Galactic pole

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...437..560w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 437, no. 2, p. 560-563

Other

24

Cosmology, Distance, Galactic Clusters, Galactic Structure, Histograms, Red Shift, Velocity Distribution, Astronomical Photometry, Charge Coupled Devices, Flux Density, Monte Carlo Method, Spectroscopic Analysis, Telescopes

Scientific paper

The first results from a new medium-deep redshift survey of galaxies in a 4 deg by 49 min slice close to the north Galactic pole have yielded 240 new redshifts, providing a total of 327 redshifts out of 814 galaxies visible to B = 20. This survey extends the transverse information for the first five peaks found in the redshift histogram from a deeper pencil beam sample reported by Broadhurst et al. The first peak, corresponding to the Great Wall, has a significant contribution from galaxies in the outer region of the Coma cluster. Another peak at z approx. equals 0.125 is largely confined to a small area and would have been missed by the original deep cone survey if the position were shifted by only 1 deg westward. Only one of the structures we detect has a wall-like appearance. In general, the high-density structures have irregular shapes, and alternate with low-density regions or voids with various sizes up to approximately 100/h Mpc, which is a pattern similar to that detected by the shallower wide-angle surveys.

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