中文
相关论文

相关论文: Structure, dynamics and evolution of disk galaxies…

200 篇论文

We present a scenario for the formation of disks which explains not only the properties of normal galaxies, but the properties of the population of low surface brightness galaxies (LSBs) as well. We use a gravitationally self-consistent…

天体物理学 · 物理学 2009-10-28 J. J. Dalcanton , D. N. Spergel , F J Summers

We examine the evolution of the Tully-Fisher relation (TFR) using a sample of 89 field spirals, with 0.1 < z < 1, for which we have measured confident rotation velocities (Vrot). By plotting the residuals from the local TFR versus redshift,…

天体物理学 · 物理学 2009-11-13 S. P. Bamford , A. Aragon-Salamanca , B. Milvang-Jensen

We study the chemical and spectro-photometric evolution of galactic disks with detailed models calibrated on the Milky Way and using simple scaling relations, based on currently popular semi-analytic models of galaxy formation. We compare…

天体物理学 · 物理学 2007-05-23 S. Boissier , N. Prantzos

We investigate the effects of a variety of ingredients that must enter into a realistic model for disk-galaxy formation, focusing primarily on the Tully-Fisher (TF) relation and its scatter in several wavebands. Our main findings are: (a)…

天体物理学 · 物理学 2009-10-31 Ari Buchalter , Raul Jimenez , Marc Kamionkowski

Galaxies in dense environments are subject to interactions and mechanisms which directly affect their evolution by lowering their gas fractions and reducing their star-forming capacity earlier than their isolated counterparts. The aim of…

We investigate structural properties of dark matter halos of disk galaxies in LCDM cosmology, using a well-defined sample of 81 disk-dominated galaxies from the SDSS redshift survey. We model the mass-velocity and fundamental plane…

天体物理学 · 物理学 2009-11-11 Oleg Y. Gnedin , David H. Weinberg , James Pizagno , Francisco Prada , Hans-Walter Rix

We study the stellar mass Tully-Fisher relation (TFR, stellar mass versus rotation velocity) for a morphologically blind selection of emission line galaxies in the field at redshifts 0.1 $<$ z $<$ 0.375. Kinematics ($\sigma_g$, V$_{rot}$)…

We use the semi-analytic model GalICS to predict the Tully-Fisher relation in the B, I and for the first time, in the K band, and its evolution with redshift, up to z~1. We refined the determination of the disk galaxies rotation velocity,…

宇宙学与河外天体物理 · 物理学 2015-05-19 Chiara Tonini , Claudia Maraston , Bodo Ziegler , Asmus Böhm , Daniel Thomas , Julien Devriendt , Joseph Silk

We present the B-band Tully-Fisher relation (TFR) of 60 late-type galaxies with redshifts 0.1-1. The galaxies were selected from the FORS Deep Field with a limiting magnitude of R=23. Spatially resolved rotation curves were derived from…

We used galaxy evolutionary models in a hierarchical inside-out formation scenario to study the origin of the main properties and correlations of disk galaxies. We found that most of these properties and correlations are the result of three…

天体物理学 · 物理学 2007-05-23 V. Avila-Reese , C. Firmani

Recent observations of distant disk galaxies show that there is little to no evolution in the relation between maximum rotation speed and stellar mass at z < 1.2. There is however a significant scatter between these two quantities whose…

天体物理学 · 物理学 2007-12-11 Nicola Atkinson , Christopher J. Conselice , Nicole Fox

The Tully-Fisher relation (TFR) represents a connection between fundamental galaxy parameters, such as its total mass and the mass locked in stars. Therefore, the study of the evolution of this relation in the optical and infrared bands can…

宇宙学与河外天体物理 · 物理学 2015-05-18 M. Fernández Lorenzo , J. Cepa , A. Bongiovanni , A. M. Pérez García , M. A. Lara-López , M. Pović , M. Sánchez-Portal

The Tully-Fisher relation (TFR) expresses the connection between rotating galaxies and the dark matter haloes they inhabit, and therefore contains a wealth of information about galaxy formation. We construct a general framework to…

星系天体物理 · 物理学 2015-09-29 Harry Desmond , Risa H. Wechsler

We are carrying out a programme to measure the evolution of the stellar and dynamical masses and M/L ratios for a sizeable sample of morphologically-classified disk galaxies in rich galaxy clusters at 0.2<z<0.9. Using FORS2 at the VLT we…

天体物理学 · 物理学 2009-11-07 A. Aragon-Salamanca , B. Milvang-Jensen , G. Hau , I. Jorgensen , J. Hjorth

This paper investigates the detailed dynamical properties of a relatively homogeneous sample of disc-dominated S0 galaxies, with a view to understanding their formation, evolution and structure. By using high signal-to-noise ratio long-slit…

天体物理学 · 物理学 2009-11-07 Anne Mathieu , Michael Merrifield , Konrad Kuijken

Two ways of possibly solving the angular momentum problem plaguing cold dark matter (CDM) ab initio simulations of disk galaxy formation are discussed: 1) Stellar feedback processes and 2) Warm dark matter (WDM) rather than CDM. In relation…

天体物理学 · 物理学 2016-01-27 Jesper Sommer-Larsen

We study the locus of dwarf and giant early and late-type galaxies on the Tully-Fisher relation (TFR), the stellar mass Tully-Fisher relation (sTFR) and the so-called baryonic or HI gas+stellar mass Tully-Fisher relation (gsTFR). We show…

天体物理学 · 物理学 2011-02-11 Sven De Rijcke , W. W. Zeilinger , G. K. T. Hau , H. Dejonghe , P. Prugniel

Extended, soft X-ray emission from the halo of a very large disk galaxy has been detected out to r~20-40 kpc. The luminosity and surface brightness distribution is in very good agreement with predictions by recent, cosmological galaxy…

天体物理学 · 物理学 2015-06-24 Jesper Sommer-Larsen

We investigate the stellar-mass Tully-Fisher relation (TFR) between the stellar mass and the integrated gas velocity dispersion, quantified by the kinematic estimator S_0.5 measured from strong emission lines in spectra of galaxies at…

星系天体物理 · 物理学 2017-06-12 Lise Christensen , Jens Hjorth

We show that the Tully-Fisher relation observed for spiral galaxies can be explained in the current scenario of galaxy formation without invoking subtle assumptions, provided that galactic-sized dark haloes have shallow, core-like central…

天体物理学 · 物理学 2015-06-24 H. J. Mo , Shude Mao