output
19922026
Showing 2011 · astro-ph.COShow all

8 papers · 2 filters

astro-ph.CO2011★ 47 cited

Planck Intermediate Results. I. Further validation of new Planck clusters with XMM-Newton

The Planck Collaboration, N. Aghanim, M. Arnaud +182

We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-…

astro-ph.CO2011★ 45 cited

Excursion Set Halo Mass Function and Bias in a Stochastic Barrier Model of Ellipsoidal Collapse

P. S. Corasaniti, I. Achitouv

We use the Excursion Set formalism to compute the properties of the halo mass distribution for a stochastic barrier model which encapsulates the main features of the ellipsoidal co…

astro-ph.CO2011★ 183 cited

Updated CMB constraints on Dark Matter annihilation cross-sections

Silvia Galli, Fabio Iocco, Gianfranco Bertone +1

The injection of secondary particles produced by Dark Matter (DM) annihilation at redshift 100<z<1000 affects the process of recombination, leaving an imprint on Cosmic Microwave B…

astro-ph.CO2011

Towards a fast, model-independent Cosmic Microwave Background bispectrum estimator

S. Pires, S. Plaszczynski, A. Lavabre

The measurements of the statistical properties of the Cosmic Microwave Background (CMB) fluctuations enable us to probe the physics of the very early Universe especially at the epo…

astro-ph.CO2011★ 88 cited

Spectroscopic evidence for SN 2010ma associated with GRB 101219B

M. Sparre, J. Sollerman, J. P. U. Fynbo +19

We report on the spectroscopic detection of supernova SN 2010ma associated with the long gamma-ray burst GRB 101219B. We observed the optical counterpart of the GRB on three nights…

astro-ph.CO2011★ 906 cited

Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey

A. Conley, J. Guy, M. Sullivan +33

We combine high redshift Type Ia supernovae from the first 3 years of the Supernova Legacy Survey (SNLS) with other supernova (SN) samples, primarily at lower redshifts, to form a…

astro-ph.CO2011★ 456 cited

SNLS3: Constraints on Dark Energy Combining the Supernova Legacy Survey Three Year Data with Other Probes

M. Sullivan, J. Guy, A. Conley +33

We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three year sample (SNLS3) of Guy et al. (2010) and Conley et al. (2011). We use…

astro-ph.CO2011★ 47 cited

Early-Type galaxies at z ~ 1.3. III. On the dependence of Formation Epochs and Star Formation Histories on Stellar Mass and Environment

Alessandro Rettura, S. Mei, S. A. Stanford +20

We study the environmental dependence of stellar population properties at z ~ 1.3. We derive galaxy properties (stellar masses, ages and star formation histories) for samples of ma…