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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44 papers · 2 filters
The outflow history of two Herbig-Haro jets in RCW 36: HH 1042 and HH 1043
L. E. Ellerbroek, L. Podio, L. Kaper +4
Jets around low- and intermediate-mass young stellar objects (YSOs) contain a fossil record of the recent accretion and outflow activity of their parent star-forming systems. We ai…
Centauri A in the far infrared
R. Liseau, B. Montesinos, G. Olofsson +15
Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heated atmospheric layers requires direct access to the relevant empi…
Metallicity of M dwarfs III. Planet-metallicity and planet-stellar mass correlations of the HARPS GTO M dwarf sample
V. Neves, X. Bonfils, N. C. Santos +4
Aims. The aim of this work is the study of the planet-metallicity and the planet-stellar mass correlations for M dwarfs from the HARPS GTO M dwarf subsample Methods. We use a new m…
Spiral Arms in the Asymmetrically Illuminated Disk of MWC 758 and Constraints on Giant Planets
C. A. Grady, T. Muto, J. Hashimoto +71
We present the first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration…
SiO collimated outflows driven by high-mass YSOs in G24.78+0.08
C. Codella, M. T. Beltran, R. Cesaroni +4
We imaged the molecular outflows towards the cluster of high-mass young stellar objects G24.78+0.08 at high-angular resolution using SiO emission, which is considered the classical…
An interferometric study of the Fomalhaut inner debris disk II. Keck Nuller mid-infrared observations
B. Mennesson, O. Absil, J. Lebreton +7
We report on high contrast mid-infrared observations of Fomalhaut obtained with the Keck Interferometer Nuller (KIN) showing a small resolved excess over the level expected from th…
MHD simulations of accretion onto a dipolar magnetosphere. II. Magnetospheric ejections and stellar spin-down
Claudio Zanni, Jonathan Ferreira
This paper examines the outflows associated with the interaction of a stellar magnetosphere with an accretion disk. In particular, we investigate the magnetospheric ejections (MEs)…
M dwarf stars in the light of (future) exoplanet searches
B. Rojas-Ayala, E. J. Hilton, A. W. Mann +8
We present a brief overview of a splinter session on M dwarf stars as planet hosts that was organized as part of the Cool Stars 17 conference. The session was devoted to reviewing…
Spatially Resolved Observations of the Bipolar Optical Outflow from the Brown Dwarf 2MASSJ12073347-3932540
Emma Whelan, Tom Ray, Fernando Comeron +2
Studies of brown dwarf (BD) outflows provide information pertinent to questions on BD formation, as well as allowing outflow mechanisms to be investigated at the lowest masses. Her…
Upper limit for the D2H+ ortho-to-para ratio in the prestellar core 16293E (CHESS)
C. Vastel, P. Caselli, C. Ceccarelli +6
The H3+ ion plays a key role in the chemistry of dense interstellar gas clouds where stars and planets are forming. The low temperatures and high extinctions of such clouds make di…
CFBDSIR2149-0403: a 4-7 Jupiter-mass free-floating planet in the young moving group AB Doradus ?
P. Delorme, J. Gagné, L. Malo +7
Using the CFBDSIR wide field survey for brown dwarfs, we identified CFBDSIRJ214947.2-040308.9, a late T dwarf with atypically red J-Ks colour. We obtained an X-Shooter spectra, wit…
HD 172555: detection of 63 microns [OI] emission in a debris disc
P. Riviere-Marichalar, D. Barrado, J. -C. Augereau +14
Context. HD 172555 is a young A7 star belonging to the Beta Pictoris Moving Group that harbours a debris disc. The Spitzer IRS spectrum of the source showed mid-IR features such as…
On fan-shaped cold MHD winds from Keplerian accretion discs
Jonathan Ferreira, Fabien Casse
We investigate under which conditions cold, fan-shaped winds can be steadily launched from thin (Keplerian) accretion discs. Such winds are magneto-centrifugal winds launched from…
The Periodic Spectroscopic Variability of FU Orionis
Stacie L. Powell, Mike Irwin, Jerome Bouvier +1
FU Orionis systems are young stars undergoing outbursts of disc accretion and where the optical spectrum contains lines associated with both the disc photosphere and a wind compone…
FUV and X-ray irradiated protoplanetary disks: a grid of models II - Gas diagnostic line emission
Giambattista Aresu, Rowin Meijerink, Inga Kamp +3
Most of the mass in protoplanetary disks is in the form of gas. The study of the gas and its diagnostics is of fundamental importance in order to achieve a detailed description of…
AMBER/VLTI observations of the B[e] star MWC 300
Y. Wang, G. Weigelt, A. Kreplin +8
Aims. We study the enigmatic B[e] star MWC 300 to investigate its disk and binary with milli-arcsecond-scale angular resolution. Methods. We observed MWC 300 with the VLTI/AMBER in…
FUV and X-ray irradiated protoplanetary disks: a grid of models I. The disk structure
R. Meijerink, G. Aresu, I. Kamp +3
Context. Planets are thought to eventually form from the mostly gaseous (~99% of the mass) disks around young stars. The density structure and chemical composition of protoplanetar…
The CHESS survey of the L1157-B1 shock region: CO spectral signatures of jet-driven bowshocks
B. Lefloch, S. Cabrit, G. Busquet +7
The unprecedented sensitivity of Herschel coupled with the high resolution of the HIFI spectrometer permits studies of the intensity-velocity relationship I(v) in molecular outflow…
A new interferometric study of four exoplanet host stars : θ Cygni, 14 Andromedae, {\upsilon} Andromedae and 42 Draconis
R. Ligi, D. Mourard, A. M. Lagrange +13
Studying exoplanet host stars is of the utmost importance to establish the link between the presence of exoplanets around various types of stars and to understand the respective ev…
Deep search for companions to probable young brown dwarfs
G. Chauvin, J. Faherty, A. Boccaletti +10
We have obtained high contrast images of four nearby, faint, and very low mass objects 2MASSJ04351455-1414468, SDSSJ044337.61+000205.1, 2MASSJ06085283-2753583 and 2MASSJ06524851-57…
Searching for planetary-mass T-dwarfs in the core of Serpens
L. Spezzi, C. Alves de Oliveira, E. Moraux +5
We searched for isolated planetary-mass T-dwarfs in the 3Myr old Serpens Core cluster. We performed a deep imaging survey of the central part of this cluster using the WIRCam camer…
Dynamical evolution of the Gliese 436 planetary system - Kozai migration as a potential source for Gliese 436b's eccentricity
Hervé Beust, Xavier Bonfils, Guillaume Montagnier +2
The close-in planet orbiting GJ 436 presents a puzzling orbital eccentricity considering its very short orbital period. Given the age of the system, this planet should have been ti…
Intricate visibility effects from resolved emission of young stellar objects: the case of MWC158 observed with the VLTI
Jacques Kluska, Fabien Malbet, Jean-Philippe Berger +7
In the course of our VLTI young stellar object PIONIER imaging program, we have identified a strong visibility chromatic dependency that appeared in certain sources. This effect, r…
Binary interaction dominates the evolution of massive stars
H. Sana, S. E. de Mink, A. de Koter +7
The presence of a nearby companion alters the evolution of massive stars in binary systems, leading to phenomena such as stellar mergers, X-ray binaries and gamma-ray bursts. Unamb…