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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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277 papers · 1 filter
SOPHIE velocimetry of Kepler transit candidates II. KOI-428b: a hot Jupiter transiting a subgiant F-star
A. Santerne, R. F. Diaz, F. Bouchy +7
We report the discovery of a hot Jupiter transiting a subgiant star with an orbital period of 6.87 days thanks to public photometric data from the Kepler space mission and new radi…
The upper atmosphere of the exoplanet HD209458b revealed by the sodium D lines: Temperature-pressure profile, ionization layer, and thermosphere
A. Vidal-Madjar, D. K. Sing, A. Lecavelier des Etangs +6
A complete reassessment of the HST observations of the transits of the extrasolar planet HD209458b has provided a transmission spectrum of the atmosphere over a wide range of wavel…
The intrinsic shape of bulges
J. Mendez-Abreu, E. Simonneau, J. A. L. Aguerri +1
The structural parameters of a magnitude-limited sample of 148 unbarred S0-Sb galaxies were derived using the GASP2D algorithm and then analyzed to derive the intrinsic shape of th…
Impact of Solar Wind Depression on the Dayside Magnetosphere under Northward Interplanetary Magnetic Field
Suleiman Baraka, Lotfi Ben-Jaffel
We present a follow up study of the sensitivity of the Earth's magnetosphere to solar wind activity using a particles-in-cell model [Baraka and Ben Jaffel, 2007], but here during n…
HerMES: SPIRE/Sub-millimetre Emission from Radio Selected AGN
N. Seymour, M. Symeonidis, M. Page +1
We examine the rest-frame far-infrared emission from powerful radio sources with 1.4GHz luminosity densities of 25<=log(L_1.4/WHz^-1)<=26.5 in the extragalactic Spitzer First Look…
Primordial Trispectrum from Isocurvature Fluctuations
David Langlois, Tomo Takahashi
We study non-Gaussianity generated by adiabatic and isocurvature primordial perturbations. We first obtain, in a very general setting, the non-linear perturbations, up to third ord…
The HARPS search for southern extra-solar planets: XXVI: Seven new planetary systems
C. Moutou, M. Mayor, G. Lo Curto +10
We are conducting a planet search survey with HARPS since seven years. The volume-limited stellar sample includes all F2 to M0 main-sequence stars within 57.5 pc, where extrasolar…
Deprojecting the quenching of star formation in and near clusters
G. A. Mamon, S. Mahajan, S. Raychaudhury
Using H_delta and D_n4000 as tracers of recent or ongoing efficient star formation, we analyze the fraction of SDSS galaxies with recent or ongoing efficient star formation (GORES)…
The evolution of the Cosmic Microwave Background Temperature: Measurements of TCMB at high redshift from carbon monoxide excitation
P. Noterdaeme, P. Petitjean, R. Srianand +2
A milestone of modern cosmology was the prediction and serendipitous discovery of the Cosmic Microwave Background (CMB), the radiation left over after decoupling from matter in the…
CMB spectra and bispectra calculations: making the flat-sky approximation rigorous
Francis Bernardeau, Cyril Pitrou, Jean-Philippe Uzan
This article constructs flat-sky approximations in a controlled way in the context of the cosmic microwave background observations for the computation of both spectra and bispectra…
X-ray and optical properties of Broad Absorption Line Quasars in the Canada-France-Hawaii Telescope Legacy Survey
C. S. Stalin, R. Srianand, P. Petitjean
We study the X-ray and optical properties of 16 Broad Absorption Line (BAL) quasars detected in about 3 degree square region common to the wide synoptic (W-1) component of the Cana…
Influence of the Environment on PAH Emission in Star-Forming Regions
V. Lebouteiller, J. Bernard-Salas, D. G. Whelan +5
We investigate the emission properties of polycyclic aromatic hydrocarbons (PAHs) in various metallicity environments with the Infrared Spectrograph on board Spitzer. Local giant H…
Differential rotation in rapidly rotating early-type stars. I. Motivations for combined spectroscopic and interferometric studies
J. Zorec, Y. Fremat, A. Domiciano de Souza +7
Since the external regions of the envelopes of rapidly rotating early-type stars are unstable to convection, a coupling may exist between the convection and the internal rotation.…
The HARPS search for southern extra-solar planets: XXVIII. Two giant planets around M0 dwarfs
Thierry Forveille, Xavier Bonfils, Gaspare Lo Curto +11
Fewer giants planets are found around M dwarfs than around more massive stars, and this dependence of planetary characteristics on the mass of the central star is an important obse…
Energy estimate for initial data on a characteristic cone
Yvonne Choquet-Bruhat, José M. Martín-García
The Einstein equations in wave map gauge are a geometric second order system for a Lorentzian metric. To study existence of solutions of this hyperbolic quasi diagonal system with…
The VMC Survey - I. Strategy and First Data
M. -R. L. Cioni, G. Clementini, L. Girardi +31
The new VISual and Infrared Telescope for Astronomy (VISTA) has started operations. Over its first five years it will be collecting data for six public surveys, one of these is the…
Herschel-ATLAS: Rapid evolution of dust in galaxies in the last 5 billion years
L. Dunne, H. Gomez, E. da Cunha +38
We present the first direct and unbiased measurement of the evolution of the dust mass function of galaxies over the past 5 billion years of cosmic history using data from the Scie…
Complementarity of Dark Matter Direct Detection Targets
Miguel Pato, Laura Baudis, Gianfranco Bertone +3
We investigate the reconstruction capabilities of Dark Matter mass and spin-independent cross-section from future ton-scale direct detection experiments using germanium, xenon or a…
Variability selected high-redshift quasars on SDSS Stripe 82
N. Palanque-Delabrouille, Ch. Yeche, A. D. Myers +11
The SDSS-III BOSS Quasar survey will attempt to observe z>2.15 quasars at a density of at least 15 per square degree to yield the first measurement of the Baryon Acoustic Oscillati…
Does an atom interferometer test the gravitational redshift at the Compton frequency ?
Peter Wolf, Luc Blanchet, Christian J. Bordé +3
Atom interferometers allow the measurement of the acceleration of freely falling atoms with respect to an experimental platform at rest on Earth's surface. Such experiments have be…
Are cold flows detectable with metal absorption lines?
Taysun Kimm, Adrianne Slyz, Julien Devriendt +1
[Abridged] Cold gas flowing within the "cosmic web" is believed to be an important source of fuel for star formation at high redshift. However, the presence of such filamentary gas…
The spin-orbit angles of the transiting exoplanets WASP-1b, WASP-24b, WASP-38b and HAT-P-8b from Rossiter-McLaughlin observations
E. K. Simpson, D. Pollacco, A. Collier Cameron +18
We present observations of the Rossiter-McLaughlin effect for the transiting exoplanet systems WASP-1, WASP-24, WASP-38 and HAT-P-8, and deduce the orientations of the planetary or…
Detection of a Thermal Spectral Component in the Prompt Emission of GRB 100724B
Sylvain Guiriec, Valerie Connaughton, Michael S. Briggs +29
Observations of GRB 100724B with the Fermi Gamma-Ray Burst Monitor (GBM) find that the spectrum is dominated by the typical Band functional form, which is usually taken to represen…
High-energy break-up of 6Li as a tool to study the Big-Bang nucleosynthesis reaction 2H(alpha,gamma)6Li
F. Hammache, M. Heil, S. Typel +24
The recently claimed observations of non-negligible amounts of 6Li in old halo stars have renewed interest in the Big-Bang Nucleosynthesis (BBN) of 6Li. One important ingredient in…