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Related papers: The Fundamental Plane of Bulges at Intermediate Re…

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AIMS: We present in this work low and intermediate resolution spectroscopic data collected for 152 early type galaxies in 8 nearby clusters with z $\leq$ 0.10. METHODS: We use low resolution data to produce the redshift and the K-correction…

Astrophysics · Physics 2009-11-11 D. Bettoni , M. Moles , P. Kjaergaard , G. Fasano , J. Varela

(Abridged) We explore the evolution of field early-type galaxies on a sample extracted from GOODS/CDFS. The galaxies are selected by means of a non-parametric analysis followed by visual inspection. We exclude those galaxies which are not…

Astrophysics · Physics 2009-11-10 I. Ferreras , T. Lisker , C. M. Carollo , S. J. Lilly , B. Mobasher , .

We explore the internal structure of red sequence galaxies in the Coma cluster across a wide range of luminosities ($-17>M_g>-22$) and cluster-centric radii ($0<r_{\rm{cluster}}<1.3 r_{200}$). We present the 2D bulge-disc decomposition of…

Astrophysics of Galaxies · Physics 2015-06-18 Jacob T. C. G. Head , John R. Lucey , Michael J. Hudson , Russell J. Smith

We employ high-resolution zoom-in cosmological simulations to analyze the emerging morphology of galaxies in dark matter halos at redshifts z > 2. We choose DM halos of similar masses of log (Mvir/Mo) ~11.65 +- 0.05 at the target redshifts…

Astrophysics of Galaxies · Physics 2022-02-23 Da Bi , Isaac Shlosman , Emilio Romano-Diaz

We present measurements of the Fundamental Plane (FP) parameters (the effective radius, the mean effective surface brightness, and the central velocity dispersion) of six field elliptical galaxies at intermediate redshift. The imaging is…

Astrophysics · Physics 2010-04-21 T. Treu , M. Stiavelli , S. Casertano , P. Møller , G. Bertin

We investigate the galaxy populations in seven X-ray selected, intermediate-redshift groups (0.2<z<0.6). Overall, the galaxy populations in these systems are similar to those in clusters at the same redshift; they have large fractions of…

Astrophysics · Physics 2010-11-11 Tesla E. Jeltema , John S. Mulchaey , Lori M. Lubin , Christopher D. Fassnacht

Bulges, often identified with the spheroidal component of a galaxy, have a complex pedigree. Massive bulges are generally red and old, but lower mass bulges have broader dispersions in color that may be correlated with disk colors. This…

Astrophysics · Physics 2009-10-31 Joseph Silk , Rychard J. Bouwens

We present quantitative morphology measurements of a sample of optically selected group galaxies at 0.3 < z < 0.55 using the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) and the GIM2D surface brightness--fitting software…

Images recorded through J, H, K, 2.2 micron continuum and CO filters have been obtained of a sample of metal-poor ([Fe/H] < -1.3) globular clusters in the inner spheroid of the Galaxy. The shape and color of the upper giant branch on the…

Astrophysics · Physics 2009-10-31 T. J. Davidge

Taking advantage of HST CANDELS data, we analyze the lowest redshift (z<0.5) massive galaxies in order to disentangle their structural constituents and study possible faint non-axis-symmetric features. Due to the excellent HST spatial…

We have modelled the light distribution in 10095 galaxies from the Millennium Galaxy Catalogue (MGC), providing publically available structural catalogues for a large, representative sample of galaxies in the local Universe. Three different…

We use deep Hubble Space Telescope images taken with the Advanced Camera for Surveys (ACS) in the F475W and F814W filters to investigate the globular cluster systems in four edge-on Sa spiral galaxies covering a factor of 4 in luminosity.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Aparna Maybhate , Paul Goudfrooij , Rupali Chandar , Thomas H. Puzia

We present one of the largest homogeneous sets of spiral and lenticular galaxy brightness profile decompositions completed to date. The 659 galaxies in our sample have been fitted with a deVaucouleurs' law for the bulge component and an…

Astrophysics · Physics 2009-10-30 W. E. Baggett , S. M. Baggett , K. S. J. Anderson

We study the photometric parameters of the bulges of galaxies of different Hubble types including ellipticals, lenticulars, early and late type spirals and early type dwarf galaxies. Analyzing the distributions of various photometric…

~Deep photometric data in the V-, R-, I-, z- and K-bands for the cluster of galaxies EIS 0048-2942 are used to investigate the properties of the galaxy populations at z~0.64 in a field of 2.5x2.5 Mpc^2. The sample of candidate cluster…

Astrophysics · Physics 2009-11-07 F. La Barbera , P. Merluzzi , A. Iovino , M. Massarotti , G. Busarello

We present the results of an imaging programme of distant galaxies (z~0.8) at high spatial resolution (~0.1").We observed 7 fields of 1'*1' with the NACO Adaptive Optics system (VLT) in Ks (2.16um) band with typical V ~ 14 guide stars and…

Astrophysics · Physics 2010-11-11 M. Huertas-Company , D. Rouan , G. Soucail , O. Le Fèvre , L. Tasca , T. Contini

We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1-2 disk scale lengths with S/N/Ang > 50. Two different…

Astrophysics · Physics 2009-11-13 Lauren A. MacArthur , Jesus Gonzalez , Stephane Courteau

One of the most outstanding questions in contemporary astrophysics is: What is the significance of galaxy morphology? What physical processes underlier the morphologies we observe and is a galaxy's internal structure driving its evolution…

Astrophysics of Galaxies · Physics 2026-04-22 Louis Quilley , Matthew D. Lehnert , Valérie de Lapparent

(Abridged) We trace the interaction processes of galaxies at intermediate redshift by measuring the irregularity of their ionized gas kinematics, and investigate these irregularities as a function of the environment (cluster versus field)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Elif Kutdemir , Bodo Ziegler , Reynier Peletier , Cristiano Da Rocha , Asmus Boehm , Miguel Verdugo

Observed galaxy luminosities (derived from redshifts) hold information on the large-scale peculiar velocity field in the form of spatially correlated scatter, which allows for bounds on bulk flows and the growth rate of matter density…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-04 Martin Feix , Enzo Branchini , Adi Nusser