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arXiv:astro-ph/9408031 (astro-ph)
[Submitted on 10 Aug 1994]

Title:A Survey of Galaxy Redshifts from Low-Resolution Slitless Spectra: Suggestion of Large-Scale Structures at Z ~0.1

Authors:M. Beauchemin, E.F. Borra
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Abstract: We have conducted a galaxy survey based on low-resolution slitless spectra taken from the automated CFHT-Laval survey. We present redshift distributions for 522 galaxies distributed in 4 distinct regions of the sky. Redshifts are determined from the shifted positions of the 4000 A. stellar break using an automated break-finding algorithm. The redshifts so obtained have a precision of < 3000 km s-1, good enough to trace the large-scale distribution of galaxies. The most striking feature of the survey is an apparent excess of galaxies at z ~ 0.1 in 8 of the 10 fields probed. Although the statistical significance of the peaks appears marginal (~ 2.5s per field) after taken in account the small-scale galaxy clustering, the peaks may nevertheless reveal the existence of large-scale structures at z ~ 0.1, indicating that the known large structures in the local universe are not unusual.
Comments: 28 pages + 4 figures, uuencoded-compressed-Postscript, EFB08294
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/9408031
  (or arXiv:astro-ph/9408031v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/9408031
Related DOI: https://doi.org/10.1093/mnras/270.4.811

Submission history

From: Ermanno Borra [view email]
[v1] Wed, 10 Aug 1994 20:32:25 UTC (60 KB)
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