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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

I investigate the Baryonic Tully-Fisher relation for a sample of galaxies with extended 21 cm rotation curves spanning the range 20 < Vf < 300 km/s. A variety of scalings of the stellar mass-to-light ratio are considered. For each…

天体物理学 · 物理学 2010-04-06 Stacy S. McGaugh

We analyze residuals from the Tully-Fisher relation for the emission-line galaxies in the Nearby Field Galaxy Survey, a broadly representative survey designed to fairly sample the variety of galaxy morphologies and environments in the local…

天体物理学 · 物理学 2008-11-26 Sheila J. Kannappan , Daniel G. Fabricant , Marijn Franx

We present new and archival atomic hydrogen (\hi) observations of \galnum\ of the most massive spiral galaxies in the local Universe ($M_\star>10^{11} \, \mathrm{M}_\odot$). From 3D kinematic modeling of the datacubes, we derive extended…

The baryonic Tully-Fisher relation (BTF) is a fundamental relation between baryonic mass and maximum rotation velocity. It can be used to estimate distances, as well as to constrain the properties of dark matter and its relation with the…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Trachternach , W. J. G. de Blok , S. S. McGaugh , J. M. van der Hulst , R. -J. Dettmar

We find a new Tully-Fisher-like relation for spiral galaxies holding at different galactocentric radii. This Radial Tully-Fisher (RTF) relation allows us to investigate the distribution of matter in the optical regions of spiral galaxies.…

天体物理学 · 物理学 2008-11-26 Irina A. Yegorova , Paolo Salucci

The Tully-Fisher (TF) and Fundamental Plane (FP) relations are widely used to infer extragalactic distances and peculiar velocities, enabling measurements of large-scale velocity statistics and cosmological parameters. Using the…

宇宙学与河外天体物理 · 物理学 2026-02-27 Tyann Dumerchat , Raul E. Angulo , Julian Bautista , Cesar Aguayo , Sownak Bose , Lars Hernquist

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 use Monte Carlo realizations of halo formation histories and a spherical accretion model to calculate the expected scatter in the velocity dispersions of galactic halos of a given mass due to differences in their formation times.…

天体物理学 · 物理学 2009-10-28 Daniel J. Eisenstein , Abraham Loeb

The Baryonic Tully-Fisher Relation (BTFR) links baryonic mass of rotationally supported galaxies to their flat disk velocities. A popular form of the BTFR linked to MOND is based on an empirically determined characteristic acceleration, a0…

星系天体物理 · 物理学 2021-01-06 Jeffrey M. La Fortune

We analyse the Tully-Fisher relation at moderate redshift from the point of view of the underlying stellar populations, by comparing optical and NIR photometry with a phenomenological model that combines population synthesis with a simple…

宇宙学与河外天体物理 · 物理学 2015-06-15 Ignacio Ferreras , Asmus Böhm , Bodo Ziegler , Joseph Silk

We derive the Tully-Fisher (TFR, $M_\ast-V_{\rm circ,f}$) and Fall (FR, $j_\ast-M_\ast$) relations at redshift $z = 0.9$ using a sample of 43 main-sequence disc galaxies with H$\alpha$ IFU data and JWST/HST imaging. The strength of our…

Most of the baryons in the Universe are not in the form of stars and cold gas in galaxies. Galactic outflows driven by supernovae/stellar winds are the leading mechanism for explaining this fact. The scaling relation between galaxy mass and…

宇宙学与河外天体物理 · 物理学 2015-06-05 Aaron A. Dutton

We use spiral galaxy evolution models to argue that there are substantial variations in stellar mass-to-light ratio (M/L) within and among galaxies. Our models show a strong correlation between stellar M/L and galaxy color. We compare the…

天体物理学 · 物理学 2007-05-23 Roelof S. de Jong , Eric F. Bell

Most rotationally-supported galaxies strictly follow the Baryonic Tully-Fisher Relation (BFTR) linking circular velocity with baryon content. This firmly established empirical relationship is currently thought to have origins in either…

星系天体物理 · 物理学 2020-04-09 Jeffrey M. La Fortune

A Tully-Fisher (TF) relation from H-alpha rotation curves of 19 luminous, star-forming galaxies reveals there is little evidence for evolution in the mass-to-light ratio (M/L) of these galaxies to z~0.3. The near-infrared Tolman…

天体物理学 · 物理学 2007-05-23 Matthew A. Bershady

Recent observational and theoretical works have suggested that the Tully-Fisher Relation might be generalised to include dispersion-dominated systems by combining the rotation and dispersion velocity in the definition of the kinematical…

宇宙学与河外天体物理 · 物理学 2015-06-11 Maria E. De Rossi , Patricia B. Tissera , Susana E. Pedrosa

We took spatially resolved slit spectra of 261 field disk galaxies at redshifts up to z~1 using the FORS instruments of the ESO Very Large Telescope. Our spectroscopy was complemented with HST/ACS imaging in the F814W filter. We analyzed…

星系天体物理 · 物理学 2016-07-27 Asmus Boehm , Bodo L. Ziegler

Low-acceleration space-time scale invariant dynamics (SID, Milgrom 2009a) predicts two fundamental correlations known from observational galactic dynamics: the baryonic Tully-Fisher relation (BTFR) and a correlation between the observed…

星系天体物理 · 物理学 2014-10-27 Xufen Wu , Pavel Kroupa

We investigate the properties of the B-band Tully-Fisher (T-F) relation for 25 compact group galaxies, using Vmax derived from 2-D velocity maps. Our main result is that the majority of the Hickson Compact Group galaxies lie on the T-F…

天体物理学 · 物理学 2009-11-10 C. Mendes de Oliveira , P. Amram , H. Plana , C. Balkowski