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相关论文: The structural properties of classical bulges and …

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We examine the changes in the properties of galactic bulges and discs with environment for a volume-limited sample of 12500 nearby galaxies from SDSS. We focus on galaxies with classical bulges. Classical bulges seem to have the same…

宇宙学与河外天体物理 · 物理学 2015-06-11 C. N. Lackner , J. E. Gunn

The presence of massive, compact, quiescent galaxies at z>2 presents a major challenge for theoretical models of galaxy formation and evolution. Using one of the deepest large public near-IR surveys to date, we investigate in detail the…

宇宙学与河外天体物理 · 物理学 2010-03-29 Rik J. Williams , Ryan F. Quadri , Marijn Franx , Pieter van Dokkum , Sune Toft , Mariska Kriek , Ivo Labbe

We present the results of a new and improved study of the morphological and spectral evolution of massive galaxies over the redshift range 1<z<3. Our analysis is based on a bulge-disk decomposition of 396 galaxies with Mstar>10^11 Msolar…

We present an analysis of the gas dynamics of star-forming galaxies at z~1.5 using data from the KMOS Galaxy Evolution Survey (KGES). We quantify the morphology of the galaxies using $HST$ CANDELS imaging parametrically and…

We study the relation between the properties of the bulge/disc components and the HI mass fraction of galaxies. We find that at fixed stellar mass, disc colours are correlated with the HI mass fraction, while bulge colours are not. The lack…

星系天体物理 · 物理学 2020-01-07 Xinkai Chen , Jing Wang , Xu Kong , Barbara Catinella , Li Shao , Houjun Mo

The relation between the stellar mass and size of a galaxy's structural subcomponents, such as discs and spheroids, is a powerful way to understand the processes involved in their formation. Using very large catalogues of photometric…

星系天体物理 · 物理学 2014-11-17 Trystyn A. M. Berg , Luc Simard , J. Trevor Mendel , Sara L. Ellison

The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions of massive galaxies in the redshift range 0<z<2 to explore the…

We investigate the scaling relations of bulge and disk structural parameters for a sample of 108 disk galaxies.Structural parameters are obtained from 2D bulge/disk decomposition of H-band images.Bulges are modelled with a generalized…

天体物理学 · 物理学 2009-11-10 L. K. Hunt , D. Pierini , C. Giovanardi

In this work we update the L-Galaxies semi-analytic model (SAM) to better follow the physical processes responsible for the growth of bulges via disc instabilities (leading to pseudo-bulges) and mergers (leading to classical bulges). We…

星系天体物理 · 物理学 2019-10-08 Dimitrios Irodotou , Peter A. Thomas , Bruno M. Henriques , Mark T. Sargent , Jessica M. Hislop

In these proceedings, we summarize recent results from our "SINS" VLT/SINFONI integral-field survey, focusing on the 52 detected UV/optically-selected star-forming galaxies at z~2. Our H-alpha emission-line imaging and kinematic data of…

We investigate the redshift evolution of disk and bulge-dominated galaxies using a mass-complete sample of $\sim$14,000 galaxies from the CANDELS survey, selected with $H_{\rm mag} \leq 24$, $M_{\rm stellar} \geq 10^9\,{\rm M}_\odot$, and…

星系天体物理 · 物理学 2025-06-24 Vitor M. Sampaio , Igor Kolesnikov , Reinaldo R. de Carvalho , Ignacio Ferreras , Joseph Silk

We present a sample of edge-on spiral galaxies both of early and late types.The sample consists of 175 galaxies in the Ks-filter, 169 galaxies in the H-filter and 165 galaxies in the J-filter. Bulge and disc decompositions of each galaxy…

宇宙学与河外天体物理 · 物理学 2010-12-16 N. Ya. Sotnikova , V. P. Reshetnikov , A. V. Mosenkov

We compare properties of classical and pseudo-bulges and properties of their hosting galaxies selected from the MaNGA survey. Bulge types are identified based on the S$\mathrm{\acute{e}}$rsic index n of bulge component and the position of…

星系天体物理 · 物理学 2024-07-08 Jia Hu , Lan Wang , Junqiang Ge , Kai Zhu , Guangquan Zeng

We analyze the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS (EGIS) catalogue. Combining these data with the retrieved…

星系天体物理 · 物理学 2015-05-14 A. V. Mosenkov , N. Ya. Sotnikova , V. P. Reshetnikov , D. V. Bizyaev , S. J. Kautsch

We investigate structural properties of massive galaxy populations in the central regions of five very massive galaxy clusters at z~1.4-1.7 from the South Pole Telescope Sunyaev Zel'dovich effect survey. We probe the connection between…

In the standard $\Lambda$ cold dark matter ($\Lambda$CDM) cosmology, the existence of massive pure-disc galaxies remains challenging within the hierarchical framework and is key to understanding the evolutionary history of Milky Way-like…

Exploiting the deep high-resolution imaging of all 5 CANDELS fields, and accurate redshift information provided by 3D-HST, we investigate the relation between structure and stellar populations for a mass-selected sample of 6764 galaxies…

In this paper we study the properties of pseudobulges (bulges that appear similar to disk galaxies) and classical bulges (bulges which appear similar to E-type galaxies) in bulge-disk decompositions. We show that the distribution of bulge…

天体物理学 · 物理学 2009-11-13 David B. Fisher , Niv Drory

In order to determine what processes govern the assembly history of galaxies with rotating disks, we examine the stellar mass Tully-Fisher relation over a wide range in redshift partitioned according to whether or not galaxies contain a…

宇宙学与河外天体物理 · 物理学 2015-06-12 Sarah H. Miller , Mark Sullivan , Richard S. Ellis

We discuss the structural and morphological properties of galaxies in a z=1.62 proto-cluster using near-IR imaging data from Hubble Space Telescope Wide Field Camera 3 data of the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey…