9.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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205 papers · 1 filter
Large grains in disks around young stars: ATCA observations of WW Cha, RU Lup, and CS Cha
Dave Lommen, Sarah Maddison, Chris Wright +3
Grains in disks around young stars grow from interstellar submicron sizes to planetesimals over the course of several Myr. Thermal emission of large grains or pebbles can be best o…
Dark Energy vs. Dark Matter: Towards a Unifying Scalar Field?
A. Arbey
The standard model of cosmology suggests the existence of two components, "dark matter" and "dark energy", which determine the fate of the Universe. Their nature is still under inv…
Cosmological constraints on unifying Dark Fluid models
A. Arbey
In the standard model of cosmology, dark matter and dark energy are presently the two main contributors to the total energy in the Universe. However, these two dark components are…
A probable giant planet imaged in the Beta Pictoris disk
A. -M. Lagrange, D. Gratadour, G. Chauvin +12
Since the discovery of its dusty disk in 1984, Beta Pictoris has become the prototype of young early-type planetary systems, and there are now various indications that a massive Jo…
Dynamical Evolution of AGN Host Galaxies - Gas In/Out-Flow Rates in 7 NUGA Galaxies
Sebastian Haan, Eva Schinnerer, Eric Emsellem +4
To examine the role of the host galaxy structure in fueling nuclear activity, we estimated gas flow rates from several kpc down to the inner few 10 pc for seven nearby spiral galax…
The mass-radius relationship from solar-type stars to terrestrial planets: a review
G. Chabrier, I. Baraffe, J. Leconte +2
In this review, we summarize our present knowledge of the behaviour of the mass-radius relationship from solar-type stars down to terrestrial planets, across the regime of substell…
Evolution of very low mass pre-main sequence stars and young brown dwarfs under accretion: A phenomenological approach
Jose Gallardo, Isabelle Baraffe, Gilles Chabrier
In the poster presented in Cool Star 15, we analyzed the effect of disk accretion on the evolution of very low mass pre-main sequence stars and young brown dwarfs and the resulting…
Fundamental Properties of Low-Mass Stars and Brown Dwarfs
Michael C. Liu, Keivan G. Stassun, France Allard +7
Precise measurements of the fundamental properties of low-mass stars and brown dwarfs are key to understanding the physics underlying their formation and evolution. While there has…
Specific Angular Momentum of Disc Merger Remnants and the -Parameter
Roland Jesseit, Michele Cappellari, Thorsten Naab +2
We use two-dimensional kinematic maps of simulated binary disc mergers to investigate the -parameter, which is a luminosity weighted measure of projected angular momentum per…
A comparison of chemistry and dust cloud formation in ultracool dwarf model atmospheres
Ch. Helling, A. Ackerman, F. Allard +8
The atmospheres of substellar objects contain clouds of oxides, iron, silicates, and other refractory condensates. Water clouds are expected in the coolest objects. The opacity of…
Galaxy mergers at high resolution: From elliptical galaxies to tidal dwarfs and globular clusters
F. Bournaud, M. Bois, E. Emsellem +1
Numerical simulations of galaxy mergers are a powerful tool to study these fundamental events in the hierarchical built-up of galaxies. Recent progress have been made owing to impr…
A two-columns formalism for time-dependent modelling of stellar convection. I. Description of the method
Alexander Stoekl
Despite all advances in multi-dimensional hydrodynamics, investigations of stellar evolution and stellar pulsations still depend on one-dimensional computations. The present work d…
On the equilibrium rotation of Earth-like extra-solar planets
Alexandre C. M. Correia, Benjamin Levrard, Jacques Laskar
The equilibrium rotation of tidally evolved "Earth-like" extra-solar planets is often assumed to be synchronous with their orbital mean motion. The same assumption persisted for Me…
VOSA: Virtual Observatory SED Analyzer. An application to the Collinder 69 open cluster
A. Bayo, C. Rodrigo, D. Barrado y Navascues +4
The physical properties of almost any kind of astronomical object can be derived by fitting synthetic spectra or photometry extracted from theoretical models to observational data.…
Constraints on the star formation histories of galaxies from z~1 to z~0
Yan-Mei Chen, Vivienne Wild, Guinevere Kauffmann +5
We present a new method to estimate the average star formation rate per unit stellar mass (SSFR) of a stacked population of galaxies. We combine the spectra of 600-1000 galaxies wi…
The SAURON project - XII. Kinematic substructures in early-type galaxies: evidence for disks in fast rotators
Davor Krajnovic, R. Bacon, Michele Cappellari +10
[Abridged] We analysed two-dimensional maps of 48 early-type galaxies obtained with the SAURON and OASIS integral-field spectrographs using kinemetry, a generalisation of surface p…
SPH simulations of grain growth in protoplanetary disks
Guillaume Laibe, Jean-François Gonzalez, Laure Fouchet +1
Aims: In order to understand the first stages of planet formation, when tiny grains aggregate to form planetesimals, one needs to simultaneously model grain growth, vertical settli…
High-resolution simulations of galaxy mergers: Resolving globular cluster formation
F. Bournaud, P. -A. Duc, E. Emsellem
Massive star clusters observed in galaxy mergers are often suggested to be progenitors of globular clusters. To study this hypothesis, we performed the highest resolution simulatio…
On the evolutionary status of short period cataclysmic variables
S. P. Littlefair, V. S. Dhillon, T. R. Marsh +5
(Abridged) We present high-speed, three-colour photometry of seven short period (Porb <= 95 mins) eclipsing CVs from the Sloan Digital Sky Survey. We determine the system parameter…
Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey
D. J. Pinfield, B. Burningham, M. Tamura +32
We present the discovery of fifteen new T2.5-T7.5 dwarfs (with estimated distances between ~24-93pc, identified in the first three main data releases of the UKIRT Infrared Deep Sky…
The photospheric solar oxygen project: I. Abundance analysis of atomic lines and influence of atmospheric models
Elisabetta Caffau, Hans-G. Ludwig, Matthias Steffen +5
The solar oxygen abundance has undergone a major downward revision in the last decade, the most noticeable one being the update including 3D hydrodynamical simulations to model the…
DARWIN - A Mission to Detect, and Search for Life on, Extrasolar Planets
C. S. Cockell, A. Leger, M. Fridlund +47
The discovery of extra-solar planets is one of the greatest achievements of modern astronomy. The detection of planets with a wide range of masses demonstrates that extra-solar pla…
Analytical theory for the initial mass function: CO clumps and prestellar cores
Patrick Hennebelle, Gilles Chabrier
We derive an analytical theory of the prestellar core initial mass function based on an extension of the Press-Schechter statistical formalism. With the same formalism, we also obt…
Kinematics and Stellar Populations of Low-Luminosity Early-Type Galaxies in the Abell 496 Cluster
Igor Chilingarian, Veronique Cayatte, Florence Durret +5
The morphology and stellar populations of low-luminosity early-type galaxies in clusters have until now been limited to a few relatively nearby clusters such as Virgo or Fornax. Sc…