Showing 2012 · astro-ph.COShow all

111 papers · 2 filters

astro-ph.CO2012★ 61 cited

Distant galaxy clusters in the XMM Large Scale Structure survey

J. P. Willis, N. Clerc, M. N. Bremer +12

(Abridged) Distant galaxy clusters provide important tests of the growth of large scale structure in addition to highlighting the process of galaxy evolution in a consistently defi…

astro-ph.CO2012★ 127 cited

CFHTLenS tomographic weak lensing: Quantifying accurate redshift distributions

Jonathan Benjamin, Ludovic Van Waerbeke, Catherine Heymans +18

The Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS) comprises deep multi-colour (u*g'r'i'z') photometry spanning 154 square degrees, with accurate photometric redshifts an…

astro-ph.CO2012★ 12 cited

Sparsely Sampling the Sky: A Bayesian Experimental Design Approach

P. Paykari, A. H. Jaffe

The next generation of galaxy surveys will observe millions of galaxies over large volumes of the universe. These surveys are expensive both in time and cost, raising questions reg…

astro-ph.CO2012★ 58 cited

Testing Diagnostics of Nuclear Activity and Star Formation in Galaxies at z>1

Jonathan R. Trump, Nicholas P. Konidaris, Guillermo Barro +9

We present some of the first science data with the new Keck/MOSFIRE instrument to test the effectiveness of different AGN/SF diagnostics at z~1.5. MOSFIRE spectra were obtained in…

astro-ph.CO2012★ 63 cited

Inferring the mass of sub-millimetre galaxies by exploiting their gravitational magnification of background galaxies

H. Hildebrandt, L. van Waerbeke, D. Scott +25

Dust emission at sub-millimetre wavelengths allows us to trace the early phases of star formation in the Universe. In order to understand the physical processes involved in this mo…

astro-ph.CO2012★ 187 cited

CFHTLenS: Testing the Laws of Gravity with Tomographic Weak Lensing and Redshift Space Distortions

Fergus Simpson, Catherine Heymans, David Parkinson +20

Dark energy may be the first sign of new fundamental physics in the Universe, taking either a physical form or revealing a correction to Einsteinian gravity. Weak gravitational len…

astro-ph.CO2012★ 92 cited

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution

Hong Guo, Idit Zehavi, Zheng Zheng +40

We measure the luminosity and color dependence and the redshift evolution of galaxy clustering in the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey Ninth Dat…

astro-ph.CO2012★ 14 cited

The Clustering of Extremely Red Objects

David P. Palamara, Michael J. I. Brown, Buell T. Jannuzi +10

We measure the clustering of Extremely Red Objects (EROs) in ~8 deg^2 of the NOAO Deep Wide Field Survey Boötes field in order to establish robust links between ERO z~1.2 and local…

astro-ph.CO2012★ 948 cited

PHIBSS: molecular gas content and scaling relations in z~1-3 normal star forming galaxies

L. J. Tacconi, R. Neri, R. Genzel +21

We present PHIBSS, the IRAM Plateau de Bure high-z blue sequence CO 3-2 survey of the molecular gas properties in normal star forming galaxies (SFGs) near the cosmic star formation…

astro-ph.CO2012★ 96 cited

HerMES: Unveiling obscured star formation - the far infrared luminosity function of ultraviolet-selected galaxies at z~1.5

S. Heinis, V. Buat, M. Béthermin +22

We study the far-infrared (IR) and sub-millimeter properties of a sample of ultraviolet (UV) selected galaxies at z\sim1.5. Using stacking at 250, 350 and 500 um from Herschel Spac…

astro-ph.CO2012★ 17 cited

Effect of model-dependent covariance matrix for studying Baryon Acoustic Oscillations

A. Labatie, J. -L. Starck, M. Lachièze-Rey

Large-scale structures in the Universe are a powerful tool to test cosmological models and constrain cosmological parameters. A particular feature of interest comes from Baryon Aco…

astro-ph.CO2012★ 273 cited

The Imprint of The Extragalactic Background Light in the Gamma-Ray Spectra of Blazars

LAT Collaboration

The light emitted by stars and accreting compact objects through the history of the Universe is encoded in the intensity of the extragalactic background light (EBL). Knowledge of t…

astro-ph.CO2012★ 235 cited

The Atlas3D project - XIV. The extent and kinematics of molecular gas in early-type galaxies

Timothy A. Davis, Katherine Alatalo, Martin Bureau +23

We use interferometric CO observations to compare the extent, surface brightness profiles and kinematics of the molecular gas in CO-rich Atlas3D early-type galaxies (ETGs) and spir…

astro-ph.CO2012★ 54 cited

NGC6240: extended CO structures and their association with shocked gas

C. Feruglio, F. Fiore, R. Maiolino +7

We present deep CO observations of NGC6240 performed with the IRAM Plateau de Bure Interferometer (PdBI). NGC6240 is the prototypical example of a major galaxy merger in progress,…

astro-ph.CO2012★ 117 cited

Widespread and Hidden Active Galactic Nuclei in Star-Forming Galaxies at Redshift > 0.3

Stéphanie Juneau, Mark Dickinson, Frédéric Bournaud +23

We characterize the incidence of active galactic nuclei (AGNs) is 0.3 < z < 1 star-forming galaxies by applying multi-wavelength AGN diagnostics (X-ray, optical, mid-infrared, radi…

astro-ph.CO2012★ 87 cited

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: weighing the neutrino mass using the galaxy power spectrum of the CMASS sample

Gong-Bo Zhao, Shun Saito, Will J. Percival +15

We measure the sum of the neutrino particle masses using the three-dimensional galaxy power spectrum of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (…

astro-ph.CO2012★ 141 cited

Cusp-core transformations induced by AGN feedback in the progenitors of cluster galaxies

D. Martizzi, R. Teyssier, B. Moore

In a recent study (Martizzi et al. 2012), we used cosmological simulations to show that active galactic nuclei (AGN) feedback on the gas distribution in clusters of galaxies can be…

astro-ph.CO2012★ 630 cited

Baryon Acoustic Oscillations in the Ly-α forest of BOSS quasars

Nicolás G. Busca, Timothée Delubac, James Rich +59

We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the \Lya forest of high-red…

astro-ph.CO2012★ 47 cited

The Spatial Distribution of Dust and Stellar Emission of the Magellanic Clouds

Ramin A. Skibba, Charles W. Engelbracht, Gonzalo Aniano +24

We study the emission by dust and stars in the Large and Small Magellanic Clouds, a pair of low-metallicity nearby galaxies, as traced by their spatially resolved spectral energy d…

astro-ph.CO2012★ 447 cited

Bayesian Galaxy Shape Measurement for Weak Lensing Surveys - III. Application to the Canada-France-Hawaii Telescope Lensing Survey

L. Miller, C. Heymans, T. D. Kitching +17

A likelihood-based method for measuring weak gravitational lensing shear in deep galaxy surveys is described and applied to the Canada-France-Hawaii Telescope (CFHT) Lensing Survey…

astro-ph.CO2012★ 413 cited

CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey - Imaging Data and Catalogue Products

T. Erben, H. Hildebrandt, L. Miller +29

We present data products from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). CFHTLenS is based on the Wide component of the Canada-France-Hawaii Telescope Legacy Sur…

astro-ph.CO2012★ 203 cited

Origins of weak lensing systematics, and requirements on future instrumentation (or knowledge of instrumentation)

Richard Massey, Henk Hoekstra, Thomas Kitching +11

The first half of this paper explores the origin of systematic biases in the measurement of weak gravitational lensing. Compared to previous work, we expand the investigation of PS…

astro-ph.CO2012★ 65 cited

The early early type: discovery of a passive galaxy at z=3

Raphaël Gobat, Veronica Strazzullo, Emanuele Daddi +6

We present the discovery of a massive, quiescent galaxy at z=2.99. We have obtained a HST/WFC3 spectrum of this object and measured its redshift from the detection of a deep 4000A…

astro-ph.CO2012★ 63 cited

A Population of z>2 Far-Infrared Herschel-SPIRE selected Starbursts

C. M. Casey, S. Berta, M. Béthermin +29

We present spectroscopic observations for a sample of 36 Herschel-SPIRE 250-500um selected galaxies (HSGs) at 2<z<5 from the Herschel Multi-tiered Extragalactic Survey (HerMES). Re…