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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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44 papers · 2 filters
Detection and discrimination of cosmological non-Gaussian signatures by multi-scale methods
J. L. Starck, N. Aghanim, O. Forni
Recent Cosmic Microwave Background (CMB) observations indicate that the temperature anisotropies arise from quantum fluctuations in the inflationary scenario. In the simplest infla…
The radio galaxy K-z relation: the 10^12 Msol mass limit; masses of galaxies from the L_K luminosity, up to z >4
B. Rocca-Volmerange, D. Le Borgne, C. De Breuck +2
The narrow K-z relation of powerful radio galaxies in the Hubble K diagram is often attributed to the stellar populations of massive elliptical galaxies. Extended over a large rang…
High order correlation functions for self interacting scalar field in de Sitter space
Francis Bernardeau, Tristan Brunier, Jean-Philippe Uzan
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cub…
Finite volume effects for non-Gaussian multi-field inflationary models
Francis Bernardeau, Jean-Philippe Uzan
Models of multi-field inflation exhibiting primordial non-Gaussianity have recently been introduced. This is the case in particular if the fluctuations of a light field scalar fiel…
The XMM--NEWTON Omega Project: II.Cosmological implications from the high redshift L-T relation of X-ray clusters
S. C. Vauclair, A. Blanchard, R. Sadat +7
The evolution with redshift of the temperature-luminosity relation of X-ray galaxy clusters is a key ingredient to break degeneracies in the interpretation of X-ray clusters redshi…
Cosmic microwave background anisotropies in multi-connected flat spaces
Alain Riazuelo, Jeffrey Weeks, Jean-Philippe Uzan +2
This article investigates the signature of the seventeen multi-connected flat spaces in cosmic microwave background (CMB) maps. For each such space it recalls a fundamental domain…
Some empirical estimates of the H2 formation rate in photon-dominated regions
E. Habart, F. Boulanger, L. Verstraete +2
We combine recent ISO observations of the vibrational ground state lines of H2 towards Photon-Dominated Regions (PDRs) with observations of vibrationally excited states made with g…
Inflationary potentials yielding constant scalar perturbation spectral indices
Alberto Vallinotto, Edmund J. Copeland, Edward W. Kolb +2
We explore the types of slow-roll inflationary potentials that result in scalar perturbations with a constant spectral index, i.e., perturbations that may be described by a single…
Gamma-ray lines from cosmic-ray interactions with interstellar dust grains
V. Tatischeff, J. Kiener
As pointed out by Lingenfelter and Ramaty (1977), the shapes of some gamma-ray lines produced by cosmic-ray interactions with the interstellar medium potentially contain valuable i…
Dodecahedral space topology as an explanation for weak wide-angle temperature correlations in the cosmic microwave background
J. -P. Luminet, J. Weeks, A. Riazuelo +2
Cosmology's standard model posits an infinite flat universe forever expanding under the pressure of dark energy. First-year data from the Wilkinson Microwave Anisotropy Probe (WMAP…
Updated Big Bang Nucleosynthesis confronted to WMAP observations and to the Abundance of Light Elements
A. Coc, E. Vangioni-Flam, P. Descouvemont +2
We improve Standard Big Bang Nucleosynthesis (SBBN) calculations taking into account new nuclear physics analyses (Descouvemont et al. 2003). Using a Monte-Carlo technique, we calc…
Search for solid HDO in low-mass protostars
B. Parise, T. Simon, E. Caux +4
We present ground-based 2.1 to 4.2 microns observations of four low-mass protostars. We searched for the 4.1 microns OD stretch band, characteristic of solid HDO in grain mantles.…
Reply to the comment on ''On the problem of initial conditions in cosmological N-body simulations''
Thierry Baertschiger, Francesco Sylos Labini
We reply to some comments in astro-ph/0309381 concerning the problem of setting-up initial conditions in cosmological N-body simulations
Measuring the matter distribution within z=0.2 cluster lenses with XMM-Newton
P. B. Marty, J. -P. Kneib, R. Sadat +4
We present an analysis of 7 clusters observed by XMM as part of our survey of 17 most X-ray luminous clusters of galaxies at z=0.2 selected for a comprehensive and unbiased study o…
A New Family of Planets ? "Ocean Planets"
A. Leger, F. Selsis, C. Sotin +7
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and interna…
The Planck High Frequency Instrument, a 3rd generation CMB experiment, and a full sky submillimeter survey
J. M. Lamarre, J. L. Puget, F. Bouchet +23
The High Frequency Instrument (HFI) of Planck is the most sensitive CMB experiment ever planned. Statistical fluctuations (photon noise) of the CMB itself will be the major limitat…
The European Large Area ISO Survey (ELAIS): The Final Band-merged Catalogue
ELAIS Consortium, :, M. Rowan-Robinson +16
We present the final band-merged ELAIS catalogue at 6.7, 15, 90, and 175 m, and the associated data at u,g,r,i,z,J,H,K, and 20cm. The origin of the survey, infrared and radio ob…
Hydrodynamical simulations of the Sunyaev-Zel'dovich effect: cluster scaling relations and X-ray properties
Antonio C. da Silva, Scott T. Kay, Andrew R. Liddle +1
The Sunyaev-Zel'dovich effect is a powerful new tool for finding and studying clusters at high redshift, particularly in combination with their X-ray properties. In this paper we q…
Molecular Gas in the Host Galaxy of a Quasar at Redshift z=6.42
Fabian Walter, Frank Bertoldi, Chris Carilli +7
Observations of the molecular gas phase in quasar host galaxies provide fundamental constraints on galaxy evolution at the highest redshifts. Molecular gas is the material out of w…
High-excitation CO in a quasar host galaxy at z=6.42
F. Bertoldi, P. Cox, R. Neri +8
We report the detection of high excitation CO emission from the most distant quasar currently known, SDSS J114816.64+525150.3 (hereafter J1148+5251), at a redshift z=6.419. The CO…
Interferometric Observations of Powerful CO Emission from the three Submillimeter Galaxies at z=2.30, 2.51 and 3.35
R. Neri, R. Genzel, R. J. Ivison +7
We report IRAM Plateau de Bure, millimeter interferometry of three z=~2.4 to 3.4, SCUBA deep field galaxies. Our CO line observations confirm the rest-frame UV/optical redshifts, t…
High resolution 21 cm mapping of the Ursa Major Galactic cirrus: power spectra of the high-latitude HI gas
M. -A. Miville-Deschenes, G. Joncas, E. Falgarone +1
We present a power spectrum analysis of interferometric 21 cm observations of the Ursa Major high-latitude cirrus, obtained with the Dominion Radio Astrophysical Observatory (DRAO)…
Determination of the gas-to-dust ratio in nearby dense clouds using X-ray absorption measurements
MyHa Vuong, Thierry Montmerle, Nicolas Grosso +3
We present a comparison of the gas and dust properties of the dense interstellar matter in six nearby star-forming regions (d<500 pc): rho Oph, Cha I, R CrA, IC 348, NGC 1333, and…
Results of the ESO-SEST Key Programme on CO in the Magellanic Clouds X. CO emission from star formation regions in LMC and SMC
F. P. Israel, L. E. B. Johansson, M. Rubio +7
We present J=1-0 and J=2-1 12CO maps of several star-forming regions in both the Large and the Small Magellanic Cloud, and briefly discuss their structure. Many of the detected mol…