Detection of features in the large-scale galaxy distribution from wide-angle samples of objective-prism spectra

Details Detection of features in the large-scale galaxy distribution from wide-angle samples of objective-prism spectra Detection of features in the large-scale galaxy distribution from wide-angle samples of objective-prism spectra

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...173l...5p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 173, no. 1, Feb. 1987, p. L5-L7.

Astronomy and Astrophysics

Astrophysics

6

Galactic Clusters, Red Shift, Spatial Distribution, Spectral Energy Distribution, Spectrum Analysis, Astronomical Spectroscopy, Cosmology, Elliptical Galaxies, Galactic Structure, Prisms

Scientific paper

The authors demonstrate a promising new application of objective-prism spectra for the investigation of the large-scale distribution of galaxies. The method is based on the fact that galaxies with identifiable 4000 Å features on objective-prism plates are predominantly ellipticals and that such galaxies appear to delineate structure and clumpiness in the galaxy distribution. Results from a whole plate sample presented here reveal substantial structure in the particular field studied. The potential of this technique is that large-scale structure in the galaxy distribution may be highlighted and traced across many adjacent fields and to depths of ≡400 h-1Mpc by virtue of redshifts provided by the 4000 Å features. This can be done without the need for excessive amounts of observing time on large telescopes.

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