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Search for Faint Galaxies Towards Nearby Voids

Published online by Cambridge University Press:  26 July 2016

U. Hopp ,
B. Kuhn ,
H. Elsässer ,
K. Birkle  and
U. Thiele
U. Hopp
Affiliation:
MPI für Astronomie, D-69117 Heidelberg, Germany
B. Kuhn
Affiliation:
MPI für Astronomie, D-69117 Heidelberg, Germany
H. Elsässer
Affiliation:
MPI für Astronomie, D-69117 Heidelberg, Germany
K. Birkle
Affiliation:
MPI für Astronomie, D-69117 Heidelberg, Germany
U. Thiele
Affiliation:
MPI für Astronomie, D-69117 Heidelberg, Germany

Extract

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Recent redshift surveys of the Nilson-, Zwicky-, and ESO-Uppsala galaxy catalogues revealed that the bright galaxies in these catalogues follow a spatial distribution where large empty regions are surrounded by sheet-like structures of galaxies and clusters (e.g. Giovanelli & Haynes 1991). From an observer's point of view, one may simply ask if the voids in the above-mentioned galaxy maps are real or if they reflect special observational selection effects, e.g. in surface brightness, integral magnitude or diameter. These catalogues contain many bright galaxies (MB ∼ M∗ B), but only very few faint objects (MB ≥ M∗B + 3m ). Older work on the distribution of intrinsically faint galaxies, like irregular dwarfs, claimed that the dwarfs follow the distribution which is outlined by the giant galaxies.

Type
Part Fourteen: Mapping the Large-Scale Structure
Information
Symposium - International Astronomical Union , Volume 161: Astronomy from Wide-Field Imaging , 1994 , pp. 705 - 708
Copyright
Copyright © Kluwer 1994 

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