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We derive the mass density profiles of dark matter halos that are implied by high spatial resolution rotation curves of low surface brightness galaxies. We find that at small radii, the mass density distribution is dominated by a nearly…

Astrophysics · Physics 2009-11-06 W. J. G. de Blok , Stacy S. McGaugh , Albert Bosma , Vera C. Rubin

Using 10 095 galaxies (B < 20 mag) from the Millennium Galaxy Catalogue, we derive B-band luminosity distributions and selected bivariate brightness distributions for the galaxy population. All subdivisions extract highly correlated…

We use the concept of the spiral rotation curves universality to investigate the luminous and dark matter properties of the dwarf disc galaxies in the local volume (size $\sim11$ Mpc). Our sample includes 36 objects with rotation curves…

Astrophysics of Galaxies · Physics 2017-01-09 Ekaterina V. Karukes , Paolo Salucci

A better understanding of the formation of mass structures in the universe can be obtained by determining the amount and distribution of dark and luminous matter in spiral galaxies. To investigate such matters a sample of 12 galaxies, most…

Astrophysics of Galaxies · Physics 2015-06-23 Roelof Bottema , Jose Luis G. Pestana

We present a multi-wavelength study (BVRI band photometry and HI line interferometry) of nine late-type galaxies selected from the HIPASS Bright Galaxy Catalog on the basis of apparently high HI mass-to-light ratios (3 M_sun/L_sun <…

Astrophysics · Physics 2008-11-26 Bradley E. Warren , Helmut Jerjen , Baerbel S. Koribalski

Surface photometry at 3.6$\mu$m is presented for 61 low surface brightness (LSB) galaxies ($\mu_o < 19$ 3.6$\mu$m mag arcsecs$^{-2}$). The sample covers a range of luminosity from $-$11 to $-$22 in $M_{3.6}$ and size from 1 to 25 kpc. The…

Astrophysics of Galaxies · Physics 2015-06-18 James Schombert , Stacy McGaugh

We present a simple technique to estimate mass-to-light (M/L) ratios of stellar populations based on two broadband photometry measurements, i.e. a color-M/L relation. We apply the color-M/L relation to galaxy rotation curves, using a large…

Astrophysics · Physics 2007-05-23 Roelof S. de Jong , Susan Kassin , Eric F. Bell , Stephane Courteau

We investigate the properties of satellite galaxies formed in N-body/SPH simulations of galaxy formation in the $\Lambda$CDM cosmology. The simulations include the main physical effects thought to be important in galaxy formation and, in…

Astrophysics · Physics 2008-11-26 Noam I Libeskind , Shaun Cole , Carlos S Frenk , Takashi Okamoto , Adrian Jenkins

To study the disc central surface brightness ($\mu_0$) distribution in optical and near-infrared bands, we select 708 disc-dominated galaxies within a fixed distance of 57 Mpc from SDSS DR7 and UKIDSS DR10. Then we fit $\mu_0$ distribution…

Astrophysics of Galaxies · Physics 2019-01-30 L. Zhou , W. Du , H. Wu , Y. C. Liang , M. He , P. S. Zhao , L. C. Deng , W. B. Shi , Y. H. Wang

Near-infrared (NIR) K' images of a sample of five low surface brightness disc galaxies (LSBGs) were combined with optical data, with the aim of constraining their star formation histories. Both red and blue LSBGs were imaged to enable…

Astrophysics · Physics 2009-10-31 E. F. Bell , R. G. Bower , R. S. de Jong , M. Hereld , B. J. Rauscher

We present an updated investigation of the relation between large scale disk circular velocity, v_c, and bulge velocity dispersion, sigma_c. New bulge velocity dispersions are measured for a sample of 11 low surface brightness (LSB) and 7…

Central black hole masses for 118 spiral galaxies representing morphological stages S0/a through Sc and taken from the large spectroscopic survey of Ho, Filippenko & Sargent (1997) are derived using 2MASS Ks data. Black hole (BH) masses are…

Astrophysics · Physics 2008-11-26 Xiaoyi Dong , Michael M. De Robertis

The optical and HI properties for a sample of low surface brightness (LSB) dwarf galaxies, cataloged from the Second Palomar Sky Survey, is presented. Gas mass fractions for LSB dwarfs reach the highest levels of any know galaxy type…

Astrophysics · Physics 2009-11-06 J. Schombert , S. McGaugh , J. Eder

We study the structural properties of Low Surface Brightness galaxies (LSB) using a sample of 263 galaxies observed by the Green Bank Telescope (Schneider et al 1992). We perform 2D decompositions of these galaxies in the SDSS $g$, $r$ and…

Astrophysics of Galaxies · Physics 2018-05-16 Isha Pahwa , Kanak Saha

Using both the Arecibo 305m and the Nancay decimetric 100-m class radio telescopes, we have observed the HI line of 116 Low Surface Brightness (LSB) galaxies from the Bothun et al. 1985 subset of LSB galaxies in the Uppsala General Catalog.…

Astrophysics · Physics 2009-11-10 K. O'Neil , G. Bothun , W. van Driel , D. Monnier Ragaigne

We present the distribution of luminous and dark matter in a set of strong lensing (early-type) galaxies. By combining two independent techniques - stellar population synthesis and gravitational lensing - we can compare the baryonic and…

Astrophysics · Physics 2009-11-13 I. Ferreras , P. Saha , L. L. R. Williams , S. Burles

The large--scale structure (LSS) in the Universe comprises a complicated filamentary network of matter. We study this network using a high--resolution simulation of structure formation of a $\Lambda$ Cold Dark Matter cosmology. We…

Astrophysics · Physics 2009-11-10 Joerg M. Colberg , K. Simon Krughoff , Andrew J. Connolly

Using the conditional luminosity function -- the luminosity distribution of galaxies in a dark matter halo as a function of the halo mass -- we present an empirical model to describe the redshift evolution of the rest B-band galaxy…

Astrophysics · Physics 2009-11-11 Asantha Cooray

Cosmological surface brightness dimming of the form $(1+z)^{-4}$ affects all sources. The strong dependence of surface brightness dimming on redshift z suggests the presence of a selection bias when searching for high-redshift galaxies,…

Astrophysics of Galaxies · Physics 2015-06-23 Valentina Calvi , Massimo Stiavelli , Larry Bradley , Alessandro Pizzella , Soyoung Kim

We investigate the rest-frame Ultraviolet (UV, $\lambda\sim2000$\AA) surface brightness (SB) evolution of galaxies up to $z\sim6$ using a variety of deep Hubble Space Telescope imaging. UV SB is a measure of the density of emission from…

Astrophysics of Galaxies · Physics 2020-11-04 Amy Whitney , Christopher Conselice , Kenneth Duncan , Lee Spitler