10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5.8k papers
- Sorbonne UniversitéFR2.7k papers
- Université Pierre-et-Marie-CurieFR2.2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.4k papers
- California Institute of TechnologyUS1.2k papers
- University of CambridgeGB1.1k papers
- Laboratoire d’Astrophysique de MarseilleFR1k papers
- University of OxfordGB1k papers
- University College LondonGB1k papers
- CEA Paris-SaclayFR992 papers
- University of GenevaCH963 papers
- Observatoire de ParisFR942 papers
196 papers · 1 filter
The Nitrogen and Oxygen abundances in the neutral gas at high redshift
Patrick Petitjean, Cedric Ledoux, R. Srianand
We study the Oxygen and Nitrogen abundances in the interstellar medium of high-redshift galaxies. We use high resolution and high signal-to-noise ratio spectra of Damped Lyman-alph…
SDSSJ124155.33+114003.7 -- a Missing Link Between Compact Elliptical and Ultracompact Dwarf Galaxies
Igor V. Chilingarian, Gary A. Mamon
We report the discovery of a compact object (R_e = 32 pc, M_B = -12.34 mag) at a projected distance of 9 kpc from Messier 59, a giant elliptical in the Virgo cluster. Using HST ima…
The Monge-Ampère-Kantorovich approach to reconstruction in cosmology
Roya Mohayaee, Andrei Sobolevskii
Motion of a continuous fluid can be decomposed into an "incompressible" rearrangement, which preserves the volume of each infinitesimal fluid element, and a gradient map that trans…
Time drift of cosmological redshifts and its variance
Jean-Philippe Uzan, Francis Bernardeau, Yannick Mellier
The contribution of cosmological perturbations to the time drift of the cosmological redshift is derived. It is shown that the dominant correction arises from the local acceleratio…
SHARC-II 350 micron Observations of Thermal Emission from Warm Dust in z>=5 Quasars
Ran Wang, Jeff Wagg, Chris L. Carilli +10
We present observations of four z>= SDSS quasars at 350 micron with the SHARC-II bolometer camera on the Caltech Submillimeter Observatory. These are among the deepest observations…
Asteroseismology of Procyon with SOPHIE
B. Mosser, F. Bouchy, M. Martic
This paper reports a 9-night asteroseismic observation program conducted in January 2007 with the new spectrometer Sophie at the OHP 193-cm telescope, on the F5 IV-V target Procyon…
Very weak lensing in the CFHTLS Wide: Cosmology from cosmic shear in the linear regime
L. Fu, E. Semboloni, H. Hoekstra +16
We present an exploration of weak lensing by large-scale structure in the linear regime, using the third-year (T0003) CFHTLS Wide data release. Our results place tight constraints…
Instability of scalar perturbation in a phantomic cosmological scenario
J. C. Fabris, D. F. Jardim, S. V. B. Goncalves
Scalar perturbations can grow during a phantomic cosmological phase as the big rip is approached, in spite of the high accelerated expansion regime, if the equation of state is suc…
Entropy Fluctuations in Brane Inflation Models
Robert H. Brandenberger, Andrew R. Frey, Larissa C. Lorenz
We study the development of entropy fluctuations in brane inflation in a warped throat, including the brane-antibrane tachyon as the waterfall field. We find that there is a period…
The galaxy luminosity function of the Abell 496 cluster and its spatial variations
G. Boué, C. Adami, F. Durret +2
We investigate the LF in the very relaxed cluster Abell 496. Our analysis is based on deep images obtained at CFHT with MegaPrime/MegaCam in four bands (ugri) covering a 1x1 deg2 r…
Causal Relationships between Eruptive Prominences and Coronal Mass Ejections
Boris Filippov, Serge Koutchmy
A close association between eruptive prominences and CMEs, both slow and fast CMEs, was reported in many studies. Sometimes it is possible to follow the material motion starting fr…
Critical phenomena in gravitational collapse
Carsten Gundlach, Jose M. Martin-Garcia
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity. Universalit…
X-Ray Jet Dynamics in a Polar Coronal Hole Region
B. Filippov, L. Golub, S. Koutchmy
New XRT observations of the north polar region taken from the X-ray Telescope (XRT) of the Hinode (Solar-B) spacecraft are used to analyze several time sequences showing small loop…
Generation of Large-Scale Magnetic Fields in Single-Field Inflation
Jerome Martin, Jun'ichi Yokoyama
We consider the generation of large-scale magnetic fields in slow-roll inflation. The inflaton field is described in a supergravity framework where the conformal invariance of the…
Clustering properties of a type-selected volume-limited sample of galaxies in the CFHTLS
H. J. McCracken, O. Ilbert, Y. Mellier +5
(abridged) We present an investigation of the clustering of i'AB<24.5 galaxies in the redshift interval 0.2<z<1.2. Using 100,000 precise photometric redshifts in the four ultra-dee…
OGLE-TR-211 - a new transiting inflated hot Jupiter from the OGLE survey and ESO LP666 spectroscopic follow-up program
A. Udalski, F. Pont, D. Naef +24
We present results of the photometric campaign for planetary and low-luminosity object transits conducted by the OGLE survey in 2005 season (Campaign #5). About twenty most promisi…
Exoplanet HD209458b: inflated hydrogen atmosphere but no sign of evaporation
Lotfi Ben-Jaffel
Many extrasolar planets orbit closely to their parent star. Their existence raises the fundamental problem of loss and gain in their mass. For exoplanet HD209458b, reports on an un…
Structural properties of disk galaxies I. The intrinsic ellipticity of bulges
J. Mendez-Abreu, J. A. L. Aguerri, E. M. Corsini +1
(Abridged) A variety of formation scenarios was proposed to explain the diversity of properties observed in bulges. Studying their intrinsic shape can help in constraining the domi…
Realistic simulations of gravitational lensing by galaxy clusters: extracting arc parameters from mock DUNE images
Massimo Meneghetti, Peter Melchior, Andrea Grazian +6
We present a newly developed code that allows simulations of optical observations of galaxy fields with a variety of instruments. The code incorporates gravitational lensing effect…
Black Holes as Dark Matter Annihilation Boosters
Mattia Fornasa, Gianfranco Bertone
We review the consequences of the growth and evolution of Black Holes on the distribution of stars and Dark Matter (DM) around them. We focus in particular on Supermassive and Inte…
Starburst galaxies in cluster-feeding filaments unveiled by Spitzer
Dario Fadda, Andrea Biviano, Francine R. Marleau +2
We report the first direct detection with Spitzer of galaxy filaments. Using Spitzer and ancillary optical data, we have discovered two filamentary structures in the outskirts of t…
Galaxy Counts at 24 Microns in the SWIRE Fields
David L. Shupe, Michael Rowan-Robinson, Carol J. Lonsdale +21
This paper presents galaxy source counts at 24 microns in the six Spitzer Wide-field InfraRed Extragalactic (SWIRE) fields. The source counts are compared to counts in other fields…
Oscillations in Procyon A: First results from a multi-site campaign
S. Hekker, T. Arentoft, H. Kjeldsen +45
Procyon A is a bright F5IV star in a binary system. Although the distance, mass and angular diameter of this star are all known with high precision, the exact evolutionary state is…
Summary of session A4 at the GRG18 conference: Alternative Theories of Gravity
Gilles Esposito-Farese
More than 50 abstracts were submitted to the A4 session on "Alternatives Theories of Gravity" at the GRG18 conference. About 30 of them were scheduled as oral presentations, that w…