We present the results of a study of the spatial distribution relative to bright normal galaxies of a new large sample of blue compact galaxies (BCGs) in the zone of the Second Byurakan Survey (SBS): 7h40m ≤ α ≤ 17h20m, 49° ≤ δ ≤ 61.2°, using as statistic the distance D_(NN) to the nearest neighboring bright galaxy. We found that the majority (～80%) of BCGs have D_(NN) < 5 h~(-1) Mpc and follow generally the large-scale structure delineated by bright galaxies, but that a minority (～20%) have D_(NN) > 5 h~(-1) Mpc and are found in voids. The large deficiency of BCGs with D_(NN) approx< 2 h~(-1) Mpc supports the hypothesis that the majority of dwarf galaxies originate as low-mass primordial density fluctuations, but not as debris resulting from tidal interactions between massive galaxies. The spatial distribution of BCGs is consistent with that found for low-surface-brightness dwarfs, supporting the idea that BCGs are LSB dwarfs undergoing intense bursts of star formation.
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