824 citations · 1.9k across the 13 of their papers we have counts for
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Search for Galaxy Clustering around a Quasar Pair at z=4.25 found in the Sloan Digital Sky Survey
Masataka Fukugita, Osamu Nakamura, Donald P. Schneider +2
We present an investigation of the environment (\approx 600 kpc radius) of a pair of luminous z=4.25 quasars, SDSS J1439-0034 A,B, separated by 33''. An analysis of high-quality Su…
The H alpha Luminosity Function of Morphologically Classified Galaxies in the Sloan Digital Sky Survey
Osamu Nakamura, Masataka Fukugita, Jon Brinkmann +1
We present a study of the H line emission from a sample of 1482 optically-selected, morphologically-classified bright galaxies (median redshift of 0.05) derived from the Sloan D…
Actively Star Forming Elliptical Galaxies at Low Redshifts in the Sloan Digital Sky Survey
Masataka Fukugita, Osamu Nakamura, Edwin L. Turner +2
We report discovery of actively star forming elliptical galaxies in a morphologically classified sample of bright galaxies at a low redshift obtained from the Sloan Digital Sky Sur…
Galaxy Types in the Sloan Digital Sky Survey Using Supervised Artificial Neural Networks
Nicholas M Ball, Jon Loveday, Masataka Fukugita +4
Supervised artificial neural networks are used to predict useful properties of galaxies in the Sloan Digital Sky Survey, in this instance morphological classifications, spectral ty…