10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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208 papers · 1 filter
Potential multi-component structure of the debris disk around HIP 17439 revealed by Herschel/DUNES
S. Ertel, J. P. Marshall, J. -C. Augereau +16
[abridged] Aims. Our Herschel Open Time Key Programme DUNES aims at detecting and characterizing debris disks around nearby, sun-like stars. In addition to the statistical analysis…
Discovery of the Fomalhaut C debris disc
G. M. Kennedy, M. C. Wyatt, P. Kalas +5
Fomalhaut is one of the most interesting and well studied nearby stars, hosting at least one planet, a spectacular debris ring, and two distant low-mass stellar companions (TW PsA…
Can eccentric debris disks be long-lived? A first numerical investigation and application to Reticuli
V. Faramaz, H. Beust, P. Thébault +13
Imaging of debris disks has found evidence for both eccentric and offset disks. One hypothesis is that these provide evidence for massive perturbers that sculpt the observed struct…
Evolution from protoplanetary to debris discs: The transition disc around HD 166191
G. M. Kennedy, S. J. Murphy, C. M. Lisse +12
HD 166191 has been identified by several studies as hosting a rare and extremely bright warm debris disc with an additional outer cool disc component. However, an alternative inter…
The NIKA instrument: results and perspectives towards a permanent KID based camera for the Pico Veleta observatory
A. D'Addabbo, R. Adam, A. Adane +32
The New IRAM KIDs Array (NIKA) is a pathfinder instrument devoted to millimetric astronomy. In 2009 it was the first multiplexed KID camera on the sky; currently it is installed at…
The relation between accretion rates and the initial mass function in hydrodynamical simulations of star formation
Th. Maschberger, I. A. Bonnell, C. J. Clarke +1
We analyse a hydrodynamical simulation of star formation. Sink particles in the simulations which represent stars show episodic growth, which is presumably accretion from a core th…
Multiplicity of Galactic Cepheids from long-baseline interferometry. II. The Companion of AX Circini revealed with VLTI/PIONIER
A. Gallenne, A. Mérand, P. Kervella +6
Aims: We aim at detecting and characterizing the main-sequence companion of the Cepheid AX Cir ( 18 yrs). The long-term objective is to estimate the mass of b…
Geochemical and planetary dynamical views on the origin of Earth's atmosphere and oceans
Nicolas Dauphas, Alessandro Morbidelli
Earth's volatile elements (H, C, and N) are essential to maintaining habitable conditions for metazoans and simpler life forms. However, identifying the sources (comets, meteorites…
Interstellar chemistry of nitrogen hydrides in dark clouds
Romane Le Gal, Pierre Hily-Blant, Alexandre Faure +3
The aim of the present work is to perform a comprehensive analysis of the interstellar chemistry of nitrogen, focussing on the gas-phase formation of the smallest polyatomic specie…
On the mass function of stars growing in a flocculent medium
Thomas Maschberger
Stars form in regions of very inhomogeneous densities and may have chaotic orbital motions. This leads to a time variation of the accretion rate, which will spread the masses over…
Planck intermediate results. XVII. Emission of dust in the diffuse interstellar medium from the far-infrared to microwave frequencies
Planck Collaboration, A. Abergel, P. A. R. Ade +196
The dust-HI correlation is used to characterize the emission properties of dust in the diffuse interstellar medium. We cross-correlate sky maps from Planck, WMAP, and DIRBE, at 17…
The Origin and Universality of the Stellar Initial Mass Function
Stella S. R. Offner, Paul C. Clark, Patrick Hennebelle +5
We review current theories for the origin of the Stellar Initial Mass Function (IMF) with particular focus on the extent to which the IMF can be considered universal across various…
Planck 2013 results. XI. All-sky model of thermal dust emission
Planck Collaboration, A. Abergel, P. A. R. Ade +244
This paper presents an all-sky model of dust emission from the Planck 857, 545 and 353 GHz, and IRAS 100 micron data. Using a modified black-body fit to the data we present all-sky…
CII in the Interstellar Medium: Excitation by H2 Revisited
Laurent Wiesenfeld, Paul F. Goldsmith
C is a critical constituent of many regions of the interstellar medium, as it can be a major reservoir of carbon and, under a wide range of conditions, the dominant gas coolant…
Long-term TeV and X-ray Observations of the Gamma-ray Binary HESS J0632+057
VERITAS Collaboration, E. Aliu, S. Archambault +297
HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations with ground-based observatories both in the northern and southern hemispheres…
CO ro-vibrational lines in HD100546: A search for disc asymmetries and the role of fluorescence
R. P. Hein Bertelsen, I. Kamp, M. Goto +5
We have studied the emission of CO ro-vibrational lines in the disc around the Herbig Be star HD100546 with the final goal of using these lines as a diagnostic to understand inner…
The SOPHIE search for northern extrasolar planets: VI. Three new hot Jupiters in multi-planet extrasolar systems
C. Moutou, G. Hebrard, F. Bouchy +21
We present high-precision radial-velocity measurements of three solar-type stars: HD 13908, HD 159243, and HIP 91258. The observations were made with the SOPHIE spectrograph at the…
Evidence of a discontinuous disk structure around the Herbig Ae star HD 139 614
Alexis Matter, Lucas Labadie, Alexander Kreplin +6
A new class of pre-main sequence objects has been recently identified as pre-transitional disks. They present near-infrared excess coupled to a flux deficit at about 10 microns and…
An independent determination of Fomalhaut b's orbit and the dynamical effects on the outer dust belt
Hervé Beust, Jean-Charles Augereau, Amy Bonsor +7
The nearby star Fomalhaut harbours a cold, moderately eccentric dust belt with a sharp inner edge near 133 au. A low-mass, common proper motion companion (Fom b), was discovered ne…
Grain Size segregation in debris discs
Philippe Thebault, Quentin Kral, Jean-Charles Augereau
In most debris discs, dust grain dynamics is strongly affected by stellar radiation pressure. As this mechanism is size-dependent, we expect dust grains to be spatially segregated…
Searching for companions down to 2 AU from beta Pictoris using the L'-band AGPM coronagraph on VLT/NACO
Olivier Absil, Julien Milli, Dimitri Mawet +6
Context. The orbit of the giant planet discovered around beta Pic is slightly inclined with respect to the outer parts of the debris disc, which creates a warp in the inner debris…
The close environment of high-mass X-ray binaries at high angular resolution I. VLTI/AMBER and VLTI/PIONIER near-infrared interferometric observations of Vela X-1
E. Choquet, P. Kervella, J. -B. Le Bouquin +7
Recent improvements on the sensitivity and spectral resolution of X-ray observations have led to a better understanding of the properties of matter in the vicinity of High Mass X-r…
CoRoT 223992193: A new, low-mass, pre-main sequence eclipsing binary with evidence of a circumbinary disk
Edward Gillen, Suzanne Aigrain, Amy McQuillan +12
We present the discovery of CoRoT 223992193, a double-lined, detached eclipsing binary, comprising two pre-main sequence M dwarfs, discovered by the CoRoT space mission during a 23…
A Bcool magnetic snapshot survey of solar-type stars
S. C. Marsden, P. Petit, S. V. Jeffers +20
Stellar magnetic field measurements obtained from spectropolarimetry offer key data for activity and dynamo studies, and we present the results of a major high-resolution spectropo…