Results 11 to 20 of about 281 (182)
Nonlinear cosmogony of the spiral galaxy bulges
Open Astronomy, 2021 In this paper, we develop an early idea of one of the authors (Nuritdinov 1992a,b), who was the first to propose the mechanism of instability of the warp perturbation mode on the background of a nonstationary disk.
Botirov Farkhod, Nuritdinov Salakhutdin
exaly +2 more sources
An Investigation into the Prominence of Spiral Galaxy Bulges [PDF]
Astronomical Journal, 2001 From a diameter-limited sample of 86 `face-on' spiral galaxies, the bulge-to-disk size and luminosity ratios, and other quantitative measurements for the prominence of the bulge are derived. The bulge and disk parameters have been estimated using a seeing convolved Sersic r^(1/n) bulge and a seeing convolved exponential disk.
Alister Graham
exaly +4 more sources
The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations
Astrophysical Journal, Supplement Series, 2022 We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Zhao-Yu Li, Luis Ho, Hua Gao
exaly +2 more sources
Revisiting the Surface Brightness Profile of the Stellar Disk with the Statistical Mechanics of the Self-Gravitating System with the Central Body [PDF]
EntropyWe have explored the exponential surface brightness profile (SBP) of stellar disks, a topic extensively discussed by many authors yet seldom integrated with the study of correlations between black holes, bulges, and entire disks.
Dong-Biao Kang
doaj +2 more sources
A Duality in the Origin of Bulges and Spheroidal Galaxies [PDF]
The Astrophysical Journal, 2021 Abstract Studying the resolved stellar populations of the different structural components that build massive galaxies directly unveils their assembly history. We aim at characterizing the stellar population properties of a representative sample of bulges and pure spheroids in massive galaxies (M ⋆ > 1010
Luca Costantin +13 more
openaire +8 more sources
Colour Gradients in Galaxy Bulges [PDF]
Symposium - International Astronomical Union, 1993 Colour gradients, when due to stellar populations rather than dust, are potential diagnostics on the formation history of galaxy bulges. We have carried out measurements of colour gradients on a sample of 30 bulges, the first such study using CCD detectors.
BALCELLS, M, PELETIER, RF
openaire +2 more sources
Stellar Populations in Bulges of Spiral Galaxies [PDF]
Astrophysics and Space Science, 2002 To be published in "The Evolution of Galaxies. II. Basic Building Blocks", ed. M.
Jablonka, Pascale +2 more
openaire +6 more sources
Red galaxies with pseudo-bulges in the SDSS: closer to disc galaxies or to classical bulges? [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 Pseudo-bulges are expected to markedly differ from classical, quasi-monolithically forming bulges in their star formation history (SFH) and chemical abundance patterns. To test this simple expectation, we carry out a comparative structural and spectral synthesis analysis of 106 red, massive galaxies issued from the SDSS, subdivided into bulgeless ...
Ribeiro, B. +4 more
openaire +4 more sources
The clustering of galaxies with pseudo-bulge and classical bulge in the local Universe [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 14 pages, 16 figures, accepted for publication in ...
Lan Wang +5 more
openaire +2 more sources
The Astrophysical Journal, 2023 We study the morphological properties of mid-infrared selected galaxies at 1.0 < z < 1.7 in the SMACS J0723.3-7327 cluster field to investigate the mechanisms of galaxy mass assembly and structural formation at cosmic noon.
Zhaoran Liu +2 more
doaj +1 more source