Results 31 to 40 of about 345 (137)
The Local Galaxy Density and the Bulge-to-Disk Ratio of Disk Galaxies [PDF]
The Astrophysical Journal, 1995 LATEX file, 19 pages, figures available on ...
GIURICIN G. +4 more
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Composite bulges: the coexistence of classical bulges and discy pseudo-bulges in S0 and spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 We study nine S0-Sb galaxies with (photometric) bulges consisting of two distinct components. The outer component is a flattened, kinematically cool, disklike structure: a "disky pseudobulge". Embedded inside is a rounder, kinematically hot spheroid: a "classical bulge".
Erwin, P. +8 more
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Abundance jump in the inner bulges of galaxies [PDF]
Symposium - International Astronomical Union, 1993 The metallicity difference of about an order between the kinematically decoupled nuclei and the surrounding bulges is found in 3 spiral galaxies possessing an axisymmetric potential in their centres.
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A Counterrotating Bulge in the Sb Galaxy NGC 7331 [PDF]
The Astrophysical Journal, 1996 We have found that the bulge of the large, nearby Sb galaxy NGC 7331 rotates retrograde to its disk. Analysis of spectra in the region of the near-IR Ca II triplet along the major axis shows that, in the radial range between 5'' and ~20'', the line of sight velocity distribution of the absorption lines has two distinct peaks, and can be decomposed into
Prada, F +3 more
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BULGES OF NEARBY GALAXIES WITHSPITZER: SCALING RELATIONS IN PSEUDOBULGES AND CLASSICAL BULGES [PDF]
The Astrophysical Journal, 2010 We investigate scaling relations of bulges using bulge-disk decompositions at 3.6 micron and present bulge classifications for 173 E-Sd galaxies within 20 Mpc. Pseudobulges and classical bulges are identified using Sersic index, HST morphology, and star formation activity (traced by 8 micron emission).
Fisher, David B., Drory, Niv
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The bulge-disc decomposition of AGN host galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We present the results from a study of the morphologies of moderate luminosity X-ray selected AGN host galaxies in comparison to a carefully mass-matched control sample at 0.5 < z < 3 in the CANDELS GOODS-S field. We apply a multi-wavelength morphological decomposition analysis to these two samples and report on the differences between the ...
V. A. Bruce +5 more
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Secular- and merger-built bulges in barred galaxies [PDF]
Astronomy & Astrophysics, 2014 20 pages, 7 figures.
Méndez Abreu, J. +3 more
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The effects of Boxy/Peanut bulges on galaxy models [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Accepted for publication in ...
Fragkoudi, F. +3 more
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Bulges on the Fundamental Plane of early-type galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 In an ongoing effort to study the formation and evolution of galactic bulges we have investigated the position of 19 bulges of type S0-Sbc on the fundamental plane (FP). We find that bulges, both in B and K band, lie close to but slightly below the FP defined by ellipticals and S0s, i.e. are slightly brighter.
Falcón-Barroso, Jesús +2 more
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Bayesian bulge–disc decomposition of galaxy images [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We introduce PHI, a fully Bayesian Markov-chain Monte Carlo algorithm designed for the structural decomposition of galaxy images. PHI uses a triple layer approach to effectively and efficiently explore the complex parameter space. Combining this with the use of priors to prevent nonphysical models, PHI offers a number of significant advantages for ...
Argyle, JJ +3 more
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