output
19912026
Showing 2011 · astro-ph.COShow all

122 papers · 2 filters

astro-ph.CO2011★ 45 cited

Environmental effects in the interaction and merging of galaxies in zCOSMOS

P. Kampczyk, S. J. Lilly, L. de Ravel +56

(Abridged) We analyze the environments and galactic properties (morphologies and star-formation histories) of a sample of 153 close kinematic pairs in the redshift range 0.2 < z <…

astro-ph.CO2011

A Multi-wavelength MOCASSIN Model of the Magellanic-type Galaxy NGC 4449

O. Ł. Karczewski, M. J. Barlow, M. J. Page +1

We use the photoionisation and dust radiative transfer code MOCASSIN to create a model of the dwarf irregular galaxy NGC 4449. The best-matching model reproduces the global optical…

astro-ph.CO2011★ 272 cited

Herschel Far-Infrared and Sub-millimeter Photometry for the KINGFISH Sample of Nearby Galaxies

D. A. Dale, G. Aniano, C. W. Engelbracht +39

New far-infrared and sub-millimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Surv…

astro-ph.CO2011★ 136 cited

The GALEX Arecibo SDSS Survey V: The Relation between the HI Content of Galaxies and Metal Enrichment at their Outskirts

Sean M. Moran, Timothy M. Heckman, Guinevere Kauffmann +14

We have obtained long-slit spectra of 174 star-forming galaxies with stellar masses greater than 10^10 M_\odot from the GALEX Arecibo SDSS (GASS) survey. These galaxies have both H…

astro-ph.CO2011★ 16 cited

Tomography and Weak lensing Statistics

Dipak Munshi, Peter Coles, Martin Kilbinger

Extending previous studies, we derive generic predictions for lower order cumulants and their correlators for individual tomographic bins as well as between two different bins. We…

astro-ph.CO2011★ 85 cited

The Herschel Exploitation of Local Galaxy Andromeda (HELGA). I: Global far-infrared and sub-mm morphology

J. Fritz, G. Gentile, M. W. L. Smith +30

We have obtained Herschel images at five wavelengths from 100 to 500 micron of a ~5.5x2.5 degree area centred on the local galaxy M31 (Andromeda), our nearest neighbour spiral gala…

astro-ph.CO2011★ 153 cited

The effects of baryon physics, black holes and AGN feedback on the mass distribution in clusters of galaxies

Davide Martizzi, Romain Teyssier, Ben Moore +1

The spatial distribution of matter in clusters of galaxies is mainly determined by the dominant dark matter component, however, physical processes involving baryonic matter are abl…

astro-ph.CO2011★ 114 cited

The Arizona CDFS Environment Survey (ACES): A Magellan/IMACS Spectroscopic Survey of the Chandra Deep Field South

Michael C. Cooper, R. Yan, M. Dickinson +8

We present the Arizona CDFS Environment Survey (ACES), a recently-completed spectroscopic redshift survey of the Chandra Deep Field South (CDFS) conducted using IMACS on the Magell…

astro-ph.CO2011★ 54 cited

The Halo Bispectrum in N-body Simulations with non-Gaussian Initial Conditions

Emiliano Sefusatti, Martin Crocce, Vincent Desjacques

We present measurements of the bispectrum of dark matter halos in numerical simulations with non-Gaussian initial conditions of the local type. We show, in the first place, that th…

astro-ph.CO2011★ 18 cited

AKARI Observation of the North Ecliptic Pole (NEP) Supercluster at z = 0.087: mid-infrared view of transition galaxies

Jongwan Ko, Myungshin Im, Hyung Mok Lee +12

We present the mid-infrared (MIR) properties of galaxies within a supercluster in the North Ecliptic Pole region at z?0.087 observed with the AKARI satellite. We use data from the…

astro-ph.CO2011★ 23 cited

A Compressed Sensing Approach to 3D Weak Lensing

Adrienne Leonard, François-Xavier Dupé, Jean-Luc Starck

(Abridged) Weak gravitational lensing is an ideal probe of the dark universe. In recent years, several linear methods have been developed to reconstruct the density distribution in…

astro-ph.CO2011★ 21 cited

GMASS ultradeep spectroscopy of galaxies at z ~ 2 - VII. Star formation, extinction, and gas outflows from UV spectra

M. Talia, M. Mignoli, A. Cimatti +13

We use rest-frame UV spectroscopy to investigate the properties related to large-scale gas outflows, and to the dust extinction and star-formation rates of a sample of z ~ 2 star-f…

astro-ph.CO2011★ 51 cited

Activity in galactic nuclei of cluster and field galaxies in the local universe

Ho Seong Hwang, Changbom Park, David Elbaz +1

We study the environmental effects on the activity in galactic nuclei by comparing galaxies in clusters and in the field. Using a spectroscopic sample of galaxies in Abell clusters…

astro-ph.CO2011★ 184 cited

The WIRCam Deep Survey I: Counts, colours and mass-functions derived from near-infrared imaging in the CFHTLS deep fields

R. Bielby, P. Hudelot, H. J. McCracken +10

We present a new near-infrared imaging survey in the four CFHTLS deep fields: the WIRCam Deep Survey (WIRDS). WIRDS comprises extremely deep, high quality (FWHM ~0.6") J, H and K i…

astro-ph.CO2011★ 33 cited

Angular correlation functions of X-ray point-like sources in the full exposure XMM-LSS field

A. Elyiv, N. Clerc, M. Plionis +8

Our aim is to study the large-scale structure of different types of AGN using the medium-deep XMM-LSS survey. We measure the two-point angular correlation function of ~ 5700 and 25…

astro-ph.CO2011★ 188 cited

The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87

The H. E. S. S. Collaboration, :, A. Abramowski +442

Abridged: The giant radio galaxy M 87 with its proximity, famous jet, and very massive black hole provides a unique opportunity to investigate the origin of very high energy (VHE;…

astro-ph.CO2011★ 43 cited

3DEX: a code for fast spherical Fourier-Bessel decomposition of 3D surveys

B. Leistedt, A. Rassat, A. Refregier +1

High-precision cosmology requires the analysis of large-scale surveys in 3D spherical coordinates, i.e. spherical Fourier-Bessel decomposition. Current methods are insufficient for…

astro-ph.CO2011★ 94 cited

The X-ray luminous galaxy cluster population at 0.9<z<~1.6 as revealed by the XMM-Newton Distant Cluster Project

R. Fassbender, H. Boehringer, A. Nastasi +12

We present the largest sample of spectroscopically confirmed X-ray luminous high-redshift galaxy clusters to date comprising 22 systems in the range 0.9<z<\sim1.6 as part of the XM…

astro-ph.CO2011★ 41 cited

Far-IR/Submillimeter Spectroscopic Cosmological Surveys: Predictions of Infrared Line Luminosity Functions for z<4 Galaxies

Luigi Spinoglio, Kalliopi M. Dasyra, Alberto Franceschini +3

Star formation and accretion onto supermassive black holes in the nuclei of galaxies are the two most energetic processes in the Universe, producing the bulk of the observed emissi…

astro-ph.CO2011★ 63 cited

The GALEX Arecibo SDSS Survey. IV. Baryonic Mass-Velocity-Size Relations of Massive Galaxies

Barbara Catinella, Guinevere Kauffmann, David Schiminovich +12

We present dynamical scaling relations for a homogeneous and representative sample of ~500 massive galaxies, selected only by stellar mass (>10^10 Msun) and redshift (0.025<z<0.05)…

astro-ph.CO2011★ 26 cited

Constraining Dust and Molecular Gas Properties in Lyman Alpha Blobs at z~3

Yujin Yang, Roberto Decarli, Helmut Dannerbauer +14

In order to constrain the bolometric luminosities, dust properties and molecular gas content of giant Lyman alpha nebulae, the so-called Lyman alpha blobs, we have carried out a st…

astro-ph.CO2011★ 243 cited

ECOSMOG: An Efficient Code for Simulating Modified Gravity

Baojiu Li, Gong-Bo Zhao, Romain Teyssier +1

We introduce a new code, ECOSMOG, to run N-body simulations for a wide class of modified gravity and dynamical dark energy theories. These theories generally have one or more new d…

astro-ph.CO2011★ 236 cited

Non-Standard Grain Properties, Dark Gas Reservoir, and Extended Submillimeter Excess, Probed by Herschel in the Large Magellanic Cloud

F. Galliano, S. Hony, J. -P. Bernard +13

Aims: In this paper, we perform detailed modelling of the Spitzer and Herschel observations of the LMC, in order to: (i) systematically study the uncertainties and biases affecting…

astro-ph.CO2011★ 178 cited

GOODS-Herschel and CANDELS: The Morphologies of Ultraluminous Infrared Galaxies at z~2

Jeyhan S. Kartaltepe, Mark Dickinson, David M. Alexander +40

Using deep 100-160 micron observations in GOODS-S from the GOODS-H survey, combined with HST/WFC3 NIR imaging from CANDELS, we present the first morphological analysis of a complet…