نتایج جستجو برای: galaxies structure

تعداد نتایج: 1607913  

2000
Habib G. Khosroshahi Yogesh Wadadekar Ajit Kembhavi

Using a two-dimensional galaxy image decomposition technique, we extract global bulge and disk parameters for a complete sample of early type disk galaxies in the near infrared K band. We find significant correlation of the bulge parameter n with the central bulge surface brightness μb(0) and with effective radius re. Using bivariate analysis techniques, we find that logn, log re and μb(0) are ...

2005
Tommaso Treu Richard S. Ellis Ting X. Liao Pieter G. van Dokkum

We analyze the evolution of the Fundamental Plane for 141 field spheroidal galaxies in the redshift range 0.2<z<1.2, selected morphologically to a magnitude limit F850LP=22.43 in the northern field of the Great Observatories Origin Survey. For massive galaxies we find that the bulk of the star formation was completed prior to z = 2. However, for the lower mass galaxies, the luminosityweighted a...

Journal: :Symposium - International Astronomical Union 1974

Journal: :Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 2000

Journal: :Proceedings of the International Astronomical Union 2014

Journal: :Proceedings of the International Astronomical Union 2008

Journal: :Symposium - International Astronomical Union 2001

Journal: :Symposium - International Astronomical Union 1970

Journal: :Monthly Notices of the Royal Astronomical Society 2002

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