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Related papers: Galaxy luminosity function and Tully-Fisher relati…

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We measure the volume luminosity density and surface luminosity density generated by the Galactic disc, using accurate data on the local luminosity function and the disc's vertical structure. From the well measured volume mass density and…

Astrophysics · Physics 2009-11-11 Chris Flynn , Johan Holmberg , Laura Portinari , Burkhard Fuchs , Hartmut Jahreiss

We discuss the shape and decomposition of rotation curves (RCs) of galaxies formed within growing cold dark matter halos. The outer RC shape correlates mainly with the surface brightness (SB), the luminous mass fraction, fd, and the bulge…

Astrophysics · Physics 2007-05-23 V. Avila-Reese , C. Firmani , J. Zavala

Spiral galaxies can be affected by interactions in clusters, that also may distort the internal velocity field. If unrecognized from single-slit spectroscopy, this could lead to a wrong determination of the maximum rotation velocity as…

Astrophysics · Physics 2009-11-13 Elif Kutdemir , Bodo Ziegler , Reynier F. Peletier

Using estimates of dark halo masses from satellite kinematics, weak gravitational lensing, and halo abundance matching, combined with the Tully-Fisher and Faber-Jackson relations, we derive the mean relation between the optical, V_opt, and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Aaron A. Dutton , Charlie Conroy , Frank C. van den Bosch , Francisco Prada , Surhud More

A comparison between the CO and HI Tully-Fisher relation for a sample of 30 Virgo ga\-la\-xies shows no significant difference concerning the intrinsic scatter. The distance moduli from both relations after correcting for the sample…

Astrophysics · Physics 2016-08-30 F. Schoeniger , Y. Sofue

I demonstrate four tight correlations of total baryonic mass, velocity and radius for a set of nearby disk galaxies: the Mass-Velocity relation $ Mt \propto V^4$; the Mass-Radius relation $ Mt \propto R^2$; the Radius-Velocity relation $R…

Astrophysics of Galaxies · Physics 2017-02-22 Earl J Schulz

We present new data exploring the scaling relations, such as the Tully-Fisher relation (TFR), of bright barred and unbarred galaxies. A primary motivation for this study is to establish whether barredness correlates with, and is a…

We construct mass models of 28 S0-Sb galaxies. The models have an axisymmetric stellar component and a NFW dark halo and are constrained by observed Ks-band photometry and stellar kinematics. The median dark halo virial mass is 10^12.8…

Astrophysics of Galaxies · Physics 2014-11-20 Michael J. Williams , Martin Bureau , Michele Cappellari

We present new velocity dispersion measurements for a set of 12 spiral galaxies and use them to derive a more accurate V_c - sigma relation which holds for a wide morphological range of galaxies. Combined with the M_BH - sigma relation,…

Astrophysics · Physics 2007-05-23 Pieter Buyle , Maarten Baes , Herwig Dejonghe

In order to explore local large-scale structures and velocity fields, accurate galaxy distance measures are needed. We now extend the well-tested recipe for calibrating the correlation between galaxy rotation rates and luminosities --…

Cosmology and Nongalactic Astrophysics · Physics 2014-08-27 J. D. Neill , Mark Seibert , R. Brent Tully , Hélène Courtois , Jenny G. Sorce , T. H. Jarrett , Victoria Scowcroft , Frank J. Masci

The ratio of baryonic-to-dark matter in present-day galaxies constrains galaxy formation theories and can be determined empirically via the baryonic Tully-Fisher relation (BTFR), which compares a galaxy's baryonic mass (Mbary) to its…

In this paper, we measure the optical-to-virial velocity ratios Vopt/V200c of disk galaxies in the Sloan Digital Sky Survey (SDSS) at a mean redshift of <z> = 0.07 and with stellar masses 10^9 M_sun < M_* < 10^11 M_sun. Vopt/V200c, the…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-22 Reinabelle Reyes , Rachel Mandelbaum , James E. Gunn , Reiko Nakajima , Uros Seljak , Chris M. Hirata

We derive the value of H_0 using the inverse diameter and magnitude B-band Tully-Fisher relations and the large all-sky sample KLUN (5171 spiral galaxies). Our kinematical model was that of Peebles centered at Virgo. Our calibrator sample…

Astrophysics · Physics 2011-05-23 T. Ekholm , P. Teerikorpi , G. Theureau , M. Hanski , G. Paturel , L. Bottinelli , L. Gouguenheim

We used K-band photometry, maximum rotational velocities derived from Fabry-Perot data and HI observed and predicted masses to study, for the first time, the K-band, stellar and baryonic Tully-Fisher relations for galaxies in Hickson…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 S. Torres-Flores , C. Mendes de Oliveira , H. Plana , P. Amram , B. Epinat

We derive the observed luminosity function of virialized systems. Coupling this statistic with the mass function predicted by CDM cosmogonies we obtain the functional behavior of the mass-to-light ratio over a wide dyna mical range in mass.…

Astrophysics · Physics 2007-05-23 Christian Marinoni , Michael J. Hudson , Giuliano Giuricin

I present results on the correlation between galaxy mass, luminosity, and metallicity for a sample of spiral and irregular galaxies having well-measured abundance profiles, distances, and rotation speeds. Additional data for low surface…

Astrophysics · Physics 2011-05-18 Donald R. Garnett

We present Rc-band surface photometry for 170 of the 203 galaxies in GHASP, Gassendi H-Alpha survey of SPirals, a sample of late-type galaxies for which high-resolution Fabry-Perot H{\alpha} maps have previously been obtained. Our data set…

Astrophysics of Galaxies · Physics 2015-09-16 C. E. Barbosa , C. Mendes de Oliveira , P. Amram , F. Ferrari , D. Russeil , B. Epinat , V. Perret , C. Adami , M. Marcelin

Galaxy and galaxy clusters exhibit tight robust physical scaling relations between baryons and system dynamics. One such phenomenon is mass discrepancy with two leading solution spaces occupied by LCDM and MOND. Here, we propose an…

Astrophysics of Galaxies · Physics 2023-07-11 Jeffrey M. La Fortune

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…

Astrophysics of Galaxies · Physics 2021-01-06 Jeffrey M. La Fortune

We present the rest-frame B-band Tully-Fisher relation for a sample of 8 cluster spiral galaxies at z = 0.83 and 19 field spirals at z = 0.15-0.90 based on VLT spectroscopy and HST photometry. No strong difference is detected between the…