剑桥大学出版社期刊
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作者:S. Okamura , M. Doi ...
来源:[J].Symposium - International Astronomical Union, 2016, Vol.161, pp.243-247Cambridge U Press
摘要:We study the performance and limitations of the morphological classification method based on luminosity concentration and mean surface brightness. In particular, the effects of the different colour bands and of a finite seeing are investigated.
作者:S. Okamura , Y. Ohyama ...
来源:[J].Symposium - International Astronomical Union, 2016, Vol.217, pp.386-388Cambridge U Press
摘要:We report here the results of deep optical spectroscopy of the very extended emission-line region (VEELR) found serendipitously around the Seyfert 2 galaxy NGC 4388 in the Virgo cluster. The Hα recession velocities of most of the filaments of the region observed are highly b...
作者:S. Okamura , Dave Carter
来源:[J].Symposium - International Astronomical Union, 2016, Vol.216, pp.239-248Cambridge U Press
摘要:A satisfactory understanding of the origin of the dependence of galaxy properties on their environment has remained, so far, out of reach. In the light of numerous observational results and substantial theoretical progress obtained for clusters of galaxies in the last few years, ...
作者:S. Okamura , S. Miyazaki ...
来源:[J].Symposium - International Astronomical Union, 2016, Vol.220, pp.181-182Cambridge U Press
摘要:An elongated ERO with R - K ′ = 7.5 behind the cluster A851 at z=0.4 was found to lie at z = 1.5 both by the photometric redshift and by a cross correlation method of its H-band SED with local E/SO spectra. the luminosity profile is well represented by a seeing convolved exp...
作者:... M. Fukugita , K. Tarusawa , S. Okamura
来源:[J].Symposium - International Astronomical Union, 2016, Vol.161, pp.603-609Cambridge U Press
摘要:We have obtained B -band photographic surface photometry of ∼ 2000 galaxies in the Pisces-Perseus region. Combining these photometry data with redshift and HI 21 cm line-width data for spiral galaxies in the region, we have studied the Hubble constant and large-scale peculia...
作者:... Alessia Longobardi , Ortwin Gerhard , S. Okamura
来源:[J].Proceedings of the International Astronomical Union, 2013, Vol.8 (S289), pp.287-291Cambridge U Press
摘要:Abstract The luminosity function of planetary nebula populations in galaxies at distances within 10–15 Mpc exhibits a cut-off at bright magnitudes and a functional form that is observed to be invariant among different galactic morphological types. Therefore, it is used as a ...

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