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We derive deep $I$ band luminosity functions and colour-magnitude diagrams from HST imaging for eleven $0.2<z<0.6$ clusters observed at various stages of merging, and a comparison sample of five more relaxed clusters at similar redshifts.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 R. De Propris , S. Phillipps , M. Bremer

We use the very deep and homogeneous I-band selected dataset of the FORS Deep Field (FDF) to trace the evolution of the luminosity function over the redshift range 0.5 < z < 5.0. We show that the FDF I-band selection down to I(AB)=26.8…

We present a new determination of the evolving far-infrared galaxy luminosity function (FIR LF) and the resulting inferred evolution of dust-obscured star-formation rate density (SFRD) out to redshift z~6. To establish the evolving…

Astrophysics of Galaxies · Physics 2026-03-03 M. P. Koprowski , J. V. Wijesekera , J. S. Dunlop , K. Lisiecki , D. J. McLeod , R. J. McLure , M. J. Michałowski , M. Solar

The cluster and field luminosity functions (LFs) determined on large homogeneous samples (N>2200 galaxies each) are almost indistinguishable, down to M^*+4 in the r and i filters, hence suggesting that the effect of the cluster environment…

Astrophysics · Physics 2009-11-10 S. Andreon

We use very deep UGRI multi-field imaging obtained at the Keck telescope to study the evolution of the rest-frame 1700A galaxy luminosity function as the Universe doubles its age from z~4 to z~2. The depth of our imaging allows us to…

Astrophysics · Physics 2009-11-13 Marcin Sawicki , David Thompson

In this work we use the Hubble Deep Field South (HDF-S) version 2 images to assess the galaxy population out to z ~ 2. We have used two methods of templates fitting of the spectral energy distributions to obtain photometric redshifts and…

Astrophysics · Physics 2009-11-10 Theresa Wiegert , Duilia F. de Mello , Cathy Horellou

We present a study of the optical properties of the 26 most massive galaxy clusters selected within the SPT-SZ 2500 deg$^2$ survey. This Sunyaev-Zel'dovich effect selected sample spans a redshift range of 0.10 < z < 1.13. We measure the…

CFHTLS optical photometry has been used to study the galaxy luminosity functions of 14 X-ray selected clusters from the XMM-LSS survey. These are mostly groups and poor clusters, with masses (M_{500}) in the range 0.6 to 19x10 ^{13} M_solar…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Abdulmonem Alshino , Habib Khosroshahi , Trevor Ponman , Jon Willis , Marguerite Pierre , Florian Pacaud , Graham P. Smith

Characterizing the evolution of the faint end of the cluster red sequence (RS) galaxy luminosity function (GLF) with redshift is a milestone in understanding galaxy evolution. However, the community is still divided in that respect,…

Astrophysics of Galaxies · Physics 2017-08-16 Nicolas Martinet , Florence Durret , Christophe Adami , Gregory Rudnick

A sample of very high resolution cosmological disk galaxy simulations is used to investigate the evolution of galaxy disk sizes back to redshift 1 within the Lambda CDM cosmology. Artificial images in the rest frame B band are generated,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Alyson Brooks , Adam Solomon , Fabio Governato , Jacqueline McCleary , Lauren MacArthur , Chris Brook , Patrik Jonsson , Tom Quinn , James Wadsley

We present galaxy stellar mass functions (GSMFs) at $z=$ 4-8 from a rest-frame ultraviolet (UV) selected sample of $\sim$4500 galaxies, found via photometric redshifts over an area of $\sim$280 arcmin$^2$ in the CANDELS/GOODS fields and the…

The optical luminosity function is a fundamental characterization of the galaxy population. A combination of earlier redshift surveys with two new surveys allows the first accurate determination of the evolution of the luminosity function…

Astrophysics · Physics 2007-05-23 Matthew Colless

We present new measurements of the galaxy luminosity function (LF) and its dependence on local galaxy density, color, morphology, and clustocentric radius for the massive z=0.83 cluster MS1054-0321. Our analyses are based on imaging…

We present a study of the morphological nature of redshift z~0.7 star-forming galaxies using a combination of HST/ACS, GALEX and ground-based images of the COSMOS field. Our sample consists of 8,146 galaxies, 5,777 of which are detected in…

The remarkable HST datasets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map out the evolution of the UV LF from z~10 to z~4. We have identified 5859, 3001, 857, 481, 217, and 6 galaxy candidates at…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 R. J. Bouwens , G. D. Illingworth , P. A. Oesch , M. Trenti , I. Labbe' , L. Bradley , M. Carollo , P. G. van Dokkum , V. Gonzalez , B. Holwerda , M. Franx , L. Spitler , R. Smit , D. Magee

We examine the magnitude and size evolution of bulgeless (discs with no-bulge or pseudo-bulge) galaxies up to z~0.9 in rest-frame B-band. Their evolution is compared to that of normal-discs (discs with classical-bulge). The study is done…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-11 Sonali Sachdeva

The DEEP2 and COMBO-17 surveys are used to study the evolution of the luminosity function of red and blue galaxies to $z \sim 1$. Schechter function fits show that, since $z = 1$, $M^*_B$ dims by $\sim$ 1.3 mag per unit redshift for both…

We present a luminosity function (LF) for lower main sequence stars in the Galactic bulge near (l,b)=(0,-6) to J=24, corresponding to M_J~9.3. This LF is derived from HST + NICMOS observations with the F110W and F160W filters. The main…

Astrophysics · Physics 2009-10-31 M. Zoccali , S. Cassisi , J. A. Frogel , A. Gould , S. Ortolani , A. Renzini , R. M. Rich , A. W. Stephens

We measure the clustering of DEEP2 galaxies at z=1 as a function of luminosity on scales 0.1 Mpc/h to 20 Mpc/h. Drawing from a parent catalog of 25,000 galaxies at 0.7<z<1.3 in the full DEEP2 survey, we create volume-limited samples having…