output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2012 · astro-ph.COShow all

12 papers · 2 filters

astro-ph.CO2012★ 119 cited

Improved Photometric Calibration of the SNLS and the SDSS Supernova Surveys

M. Betoule, J. Marriner, N. Regnault +13

We present a combined photometric calibration of the SNLS and the SDSS supernova survey, which results from a joint effort of the SDSS and the SNLS collaborations. We deliver fluxe…

astro-ph.CO2012★ 27 cited

Exploring the Cosmic Reionization Epoch in Frequency Space: An Improved Approach to Remove the Foreground in 21 cm Tomography

Jingying Wang, Haiguang Xu, Tao An +7

Aiming to correctly restore the redshifted 21 cm signals emitted by the neutral hydrogen during the cosmic reionization processes, we re-examine the separation approaches based on…

astro-ph.CO2012★ 18 cited

Evolution of isolated overdensities as a control on cosmological N body simulations

Michael Joyce, Francesco Sylos Labini

Beyond convergence studies and comparison of different codes, there are essentially no controls on the accuracy in the non-linear regime of cosmological N body simulations, even in…

astro-ph.CO2012★ 3 cited

The expansion of the universe observed with supernovae

Pierre Astier

Over the last 20 years, supernovae have become a key tool to constrain the expansion history of the Universe through the construction of Hubble diagrams, using luminosity distances…

astro-ph.CO2012★ 16 cited

Exponents of non-linear clustering in scale-free one dimensional cosmological simulations

David Benhaiem, Michael Joyce, François Sicard

One dimensional versions of cosmological N-body simulations have been shown to share many qualitative behaviours of the three dimensional problem. They can resolve a large range of…

astro-ph.CO2012★ 88 cited

Testing Models of Intrinsic Brightness Variations in Type Ia Supernovae, and their Impact on Measuring Cosmological Parameters

Richard Kessler, Julien Guy, John Marriner +8

For spectroscopically confirmed Type Ia supernovae we evaluate models of intrinsic brightness variations with detailed data/Monte Carlo comparisons of the dispersion in the followi…

astro-ph.CO2012★ 79 cited

A Search for New Candidate Super-Chandrasekhar-Mass Type Ia Supernovae in the Nearby Supernova Factory Dataset

The Nearby Supernova Factory, :, R. Scalzo +32

We present optical photometry and spectroscopy of five type Ia supernovae discovered by the Nearby Supernova Factory selected to be spectroscopic analogues of the candidate super-C…

astro-ph.CO2012★ 15 cited

Constraints on the gamma-ray emission from the cluster-scale AGN outburst in the Hydra A galaxy cluster

HESS Collaboration, A. Abramowski, F. Acero +193

In some galaxy clusters powerful AGN have blown bubbles with cluster scale extent into the ambient medium. The main pressure support of these bubbles is not known to date, but cosm…

astro-ph.CO2012★ 244 cited

The pre-launch Planck Sky Model: a model of sky emission at submillimetre to centimetre wavelengths

J. Delabrouille, M. Betoule, J. -B. Melin +39

We present the Planck Sky Model (PSM), a parametric model for the generation of all-sky, few arcminute resolution maps of sky emission at submillimetre to centimetre wavelengths, i…

astro-ph.CO2012★ 86 cited

Evolution in the Volumetric Type Ia Supernova Rate from the Supernova Legacy Survey

K. Perrett, M. Sullivan, A. Conley +23

We present a measurement of the volumetric Type Ia supernova (SN Ia) rate (SNR_Ia) as a function of redshift for the first four years of data from the Canada-France-Hawaii Telescop…

astro-ph.CO2012★ 13 cited

An Efficient Approach to Obtaining Large Numbers of Distant Supernova Host Galaxy Redshifts

C. Lidman, V. Ruhlmann-Kleider, M. Sullivan +20

We use the wide-field capabilities of the 2dF fibre positioner and the AAOmega spectrograph on the Anglo-Australian Telescope (AAT) to obtain redshifts of galaxies that hosted supe…

astro-ph.CO2012★ 83 cited

Observational Evidence of the Accelerated Expansion of the Universe

Pierre Astier, Reynald Pain

The discovery of cosmic acceleration is one of the most important developments in modern cosmology. The observation, thirteen years ago, that type Ia supernovae appear dimmer that…