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Related papers: Magnitude and size evolution of bulgeless galaxies

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We present a demographic analysis of the physical and morphological properties of $450/850~\mu\rm m$-selected galaxies from the deep observations of the SCUBA-2 Cosmology Legacy Survey in the Extended Groth Strip that are detected below the…

Astrophysics of Galaxies · Physics 2022-10-11 L. Cardona-Torres , I. Aretxaga , A. Montaña , J. A. Zavala , S. M. Faber

We present a first morphological study of z~7-8 Lyman Break galaxies (LBGs) from Oesch et al. 2009 and Bouwens et al. 2009 detected in ultra-deep near-infrared imaging of the Hubble Ultra Deep field (HUDF) by the HUDF09 program. With an…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 P. A. Oesch , R. J. Bouwens , C. M. Carollo , G. D. Illingworth , M. Trenti , M. Stiavelli , D. Magee , I. Labbe , M. Franx

We present the morphological analysis based on HST-NICMOS observations in the F160W filter of a sample of 30 early-type galaxies spectroscopically confirmed at 1.2<z<2. We derive the effective radius R_e and the mean surface brightness mu_e…

Astrophysics · Physics 2010-11-11 P. Saracco , M. Longhetti , S. Andreon , A. Mignano

We present simple models for disk evolution based on two different approaches: a forward approach based on predictions generic to hierarchical models for structure formation (e.g., Mo, Mao, & White 1998) and a backwards approach based on…

Astrophysics · Physics 2011-08-23 Rychard J. Bouwens , Joseph Silk

Based on the Sloan Digital Sky Survey DR 7, we investigate the environment, morphology and stellar population of bulgeless low surface brightness (LSB) galaxies in a volume-limited sample with redshift ranging from 0.024 to 0.04 and $M_r$…

Astrophysics of Galaxies · Physics 2015-07-01 X. Shao , K. Disseau , Y. B. Yang , F. Hammer , M. Puech , M. Rodrigues , Y. C. Liang , L. C. Deng

We have compiled a sample of early-type cluster galaxies from 0 < z < 1.3 and measured the evolution of their ellipticity distributions. Our sample contains 487 galaxies in 17 z>0.3 clusters with high quality space-based imaging and a…

We measure galaxy structural properties and colour gradients using HST images to trace the evolution of galaxy components. We jointly fit 3D bulge and disk models to 2505 galaxies in GOODS-South across seven bands (bvizYJH) to IAB = 25.5,…

Astrophysics of Galaxies · Physics 2025-10-14 N. Welikala , L. Miller , A. N. Taylor , G. Congedo

While galactic bulges may contain no significant dust of their own, the dust within galaxy discs can strongly attenuate the light from their embedded bulges. Furthermore, such dust inhibits the ability of observationally-determined…

Astrophysics · Physics 2012-04-26 Alister W. Graham , C. C. Worley

The luminosity function of galaxies is derived from a cosmological hydrodynamic simulation of a Lambda cold dark matter (CDM) universe with the aid of a stellar population synthesis model. At z=0, the resulting B band luminosity function…

Astrophysics · Physics 2009-11-06 Kentaro Nagamine , Masataka Fukugita , Renyue Cen , Jeremiah P. Ostriker

Increasingly large populations of disk galaxies are now being observed at increasingly high redshifts, providing new constraints on our knowledge of how such galaxies evolve. Are these observations consistent with a cosmology in which…

Astrophysics · Physics 2009-11-13 C. B. Brook , D. Kawata , H. Martel , B. K. Gibson , J. Bailin

The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions of massive galaxies in the redshift range 0<z<2 to explore the…

The presence of a well-defined and narrow dust lane in an edge-on spiral galaxy is the observational signature of a thin and dense molecular disk, in which gravitational collapse has overcome turbulence. Using a sample of galaxies out to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 B. W. Holwerda , J. J. Dalcanton , D. Radburn-Smith , R. S. de Jong , P. Guhathakurta , A. Koekemoer , R. J. Allen , T. Böker

The morphologies of disk galaxies begin to deviate systematically from those of nearby galaxies at surprisingly low redshifts, possibly as low as z=0.3. This corresponds to a time ~3.5 Gyr in the past, which is only one quarter of the…

Astrophysics · Physics 2007-05-23 Roberto G. Abraham , Sidney van den Bergh

The growth of supermassive black holes appears to be driven by galaxy mergers, violent merger-free processes and/or `secular' processes. In order to quantify the effects of secular evolution on black hole growth, we study a sample of active…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 B. D. Simmons , C. Lintott , K. Schawinski , E. C. Moran , A. Han , S. Kaviraj , K. L. Masters , C. M. Urry , K. W. Willett , S. P. Bamford , R. C. Nichol

Using deep imaging from the CANDELS and HFF surveys, we present bulge+disc decompositions with GalfitM for $\sim$17,000 galaxies over $0.2 \leq z\leq 1.5$. We use various model parameters to select reliable samples of discs and bulges, and…

Studying bright ($M_B<-20$), intermediate-redshift ($0.4<z<1.0$), disc dominated ($n_B<2.5$) galaxies from HST/ACS and WFC3 in Chandra Deep Field South, in rest-frame B and I-band, we found a new class of bulges which is brighter and more…

Astrophysics of Galaxies · Physics 2019-06-03 Sonali Sachdeva , Kanak Saha

The increasing abundance of passive "red-sequence" galaxies since z=1-2 is mirrored by a coincident rise in the number of galaxies with spheroidal morphologies. In this paper, however, we show that in detail the correspondence between…

A new method for spectroscopic bulge-disc decomposition is presented, in which the spatial light profile in a two-dimensional spectrum is decomposed wavelength-by-wavelength into bulge and disc components, allowing separate one-dimensional…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 E. J. Johnston , A. Aragón-Salamanca , M. R. Merrifield , A. G. Bedregal

Two-dimensional surface photometry is presented for a sample of 351 late-type galaxies with $0.12 < z < 0.65$. These objects are drawn from the Canadian Network for Observational Cosmology (CNOC) cluster survey and are either…

Astrophysics · Physics 2009-10-28 D. Schade , R. G. Carlberg , H. K. C. Yee , O. Lopez-Cruz , E. Ellingson

We study the growth of massive galaxies from z=2 to the present using data from the NEWFIRM Medium Band Survey. The sample is selected at a constant number density of n=2x10^-4 Mpc^-3, so that galaxies at different epochs can be compared in…

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