output
19932026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2012 · astro-ph.COShow all

18 papers · 2 filters

astro-ph.CO2012★ 19 cited

Probing the Pre-Reionization Epoch with Molecular Hydrogen Intensity Mapping

Yan Gong, Asantha Cooray, Mario G. Santos

Molecular hydrogen is now understood to be the main coolant of the primordial gas clouds leading to the formation of the very first stars and galaxies. The line emissions associate…

astro-ph.CO2012★ 67 cited

A novel approach in the WIMP quest: Cross-Correlation of Gamma-Ray Anisotropies and Cosmic Shear

S. Camera, M. Fornasa, N. Fornengo +1

Both cosmic shear and cosmological gamma-ray emission stem from the presence of Dark Matter (DM) in the Universe: DM structures are responsible for the bending of light in the weak…

astro-ph.CO2012★ 251 cited

CALIFA, the Calar Alto Legacy Integral Field Area survey. II. First public data release

CALIFA collaboration, B. Husemann, K. Jahnke +74

We present the first public data release of the CALIFA survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005<z<0.03) galaxies, ob…

astro-ph.CO2012★ 24 cited

Smoking guns of a bounce in modified theories of gravity through the spectrum of the gravitational waves

Mariam Bouhmadi-Lopez, Joao Morais, Alfredo B. Henriques

We present an inflationary model preceded by a bounce in a metric theory a lá where is the scalar curvature of the space-time. The model is asymptotically de Sitter such…

astro-ph.CO2012★ 341 cited

Reionization and the Cosmic Dawn with the Square Kilometre Array

Garrelt Mellema, León Koopmans, Filipe Abdalla +25

The Square Kilometre Array (SKA) will have a low frequency component (SKA-low) which has as one of its main science goals the study of the redshifted 21cm line from the earliest ph…

astro-ph.CO2012★ 7 cited

Interacting dark energy collapse with matter components separation

Morgan Le Delliou, Tiago Barreiro

We use the spherical collapse model of structure formation to investigate the separation in the collapse of uncoupled matter (essentially baryons) and coupled dark matter in an int…

astro-ph.CO2012★ 68 cited

Galaxy disks do not need to survive in the L-CDM paradigm: the galaxy merger rate out to z~1.5 from morpho-kinematic data

M. Puech, F. Hammer, P. F. Hopkins +5

About two-thirds of present-day, large galaxies are spirals such as the Milky Way or Andromeda, but the way their thin rotating disks formed remains uncertain. Observations have re…

astro-ph.CO2012★ 28 cited

Type Ia Supernova host galaxies as seen with IFU spectroscopy

V. Stanishev, M. Rodrigues, A. Mourao +1

(abridged) We used the wide-field IFU spectrograph PMAS/PPAK at the 3.5m telescope of Calar Alto Observatory to observe six nearby spiral galaxies that hosted SNe Ia. Spatially res…

astro-ph.CO2012★ 46 cited

Precision Measurement of The Most Distant Spectroscopically Confirmed Supernova Ia with the Hubble Space Telescope

D. Rubin, R. A. Knop, E. Rykoff +25

We report the discovery of a redshift 1.71 supernova in the GOODS North field. The Hubble Space Telescope (HST) ACS spectrum has almost negligible contamination from the host or ne…

astro-ph.CO2012★ 70 cited

The Near-IR Background Intensity and Anisotropies During The Epoch of Reionization

Asantha Cooray, Yan Gong, Joseph Smidt +1

A fraction of the extragalactic near-infrared (near-IR) background light involves redshifted photons from the ultraviolet (UV) emission from galaxies present during reionization at…

astro-ph.CO2012★ 99 cited

Intensity Mapping of Lyman-alpha Emission During the Epoch of Reionization

Marta B. Silva, Mario G. Santos, Yan Gong +2

We calculate the absolute intensity and anisotropies of the Lyman-alpha radiation field present during the epoch of reionization. We consider emission from both galaxies and the in…

astro-ph.CO2012★ 31 cited

Impact of Redshift Information on Cosmological Applications with Next-Generation Radio Surveys

Stefano Camera, Mário G. Santos, David J. Bacon +5

In this paper, we explore how the forthcoming generation of large-scale radio continuum surveys, with the inclusion of some degree of redshift information, can constrain cosmologic…

astro-ph.CO2012★ 96 cited

Accelerating f(T) gravity models constrained by recent cosmological data

Vincenzo F. Cardone, Ninfa Radicella, Stefano Camera

Generalised Teleparallel gravity, also referred to as f(T) gravity, has been recently proposed as an extended theory of gravitation able to give rise to an accelerated expansion in…

astro-ph.CO2012★ 22 cited

Weak lensing peak count as a probe of f(R) theories

V. F. Cardone, S. Camera, R. Mainini +4

Weak gravitational lensing by galaxy clusters on faint higher redshift galaxies has been traditionally used to study the cluster mass distribution and as a tool to identify cluster…

astro-ph.CO2012★ 12 cited

Inclusive Constraints on Unified Dark Matter Models from Future Large-Scale Surveys

Stefano Camera, Carmelita Carbone, Lauro Moscardini

In the very last years, cosmological models where the properties of the dark components of the Universe - dark matter and dark energy - are accounted for by a single "dark fluid" h…

astro-ph.CO2012★ 27 cited

A decrease of the gas exchanges between galaxies and the IGM, from 12 to 6 billion years ago

M. Rodrigues, M. Puech, F. Hammer +2

Using a representative sample of 65 intermediate mass galaxies at z \sim 0.6, we have inves- tigated the interplay between the main ingredients of chemical evolution: metal abundan…

astro-ph.CO2012★ 2 cited

Constraints on single entity driven inflationary and radition eras

Mariam Bouhmadi-Lopez, Pisin Chen, Yen-Wei Liu

We present a model that attempts to fuse the inflationary era and the subsequent radiation dominated era under a unified framework so as to provide a smooth transition between the…

astro-ph.CO2012★ 15 cited

An updated analysis of two classes of f(R) theories of gravity

Vincenzo F. Cardone, Stefano Camera, Antonaldo Diaferio

The observed accelerated cosmic expansion can be a signature of fourth\,-\,order gravity theories, where the acceleration of the Universe is a consequence of departures from Einste…