Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5k papers
- University of OxfordGB3.5k papers
- University of EdinburghGB3k papers
- University College LondonGB2.9k papers
- University of ManchesterGB2.9k papers
- Heidelberg UniversityDE2.5k papers
- University of MichiganUS2.4k papers
- University of BirminghamGB2.3k papers
- University of WarwickGB2.3k papers
- Aix-Marseille UniversitéFR2.3k papers
- Rutherford Appleton LaboratoryGB2.2k papers
- European Organization for Nuclear ResearchCH2.2k papers
53 papers · 2 filters
V1309 Scorpii: merger of a contact binary
R. Tylenda, M. Hajduk, T. Kamiński +8
Stellar mergers are expected to take place in numerous circumstences in the evolution of stellar systems. In particular, they are considered as a plausible origin of stellar erupti…
The variable Universe through the eyes of Gaia
Laurent Eyer, Maria Suveges, Pierre Dubath +5
The ESA Gaia mission will provide a multi-epoch database for a billion of objects, including variable objects that comprise stars, active galactic nuclei and asteroids. We highligh…
Modelling magnetically dominated and radiatively cooling jets
Martin Huarte-Espinosa, Adam Frank, Eric Blackman
Using 3D-MHD Eulerian-grid numerical simulations, we study the formation and evolution of rising magnetic towers propagating into an ambient medium. The towers are generated from a…
Methane band and Spitzer mid-IR imaging of L and T dwarf candidates in the Pleiades
S. L. Casewell, R. F. Jameson, M. R. Burleigh +4
We present Spitzer observations at [3.6] and [4.5] microns together with the methane short (1.58\,\mic)-methane long (1.69\,\mic) colour for 3 cool dwarfs in the Pleiades, PLZJ23,…
Modelling turbulent fluxes due to thermal convection in rectilinear shearing flow
R. Smolec, G. Houdek, D. O. Gough
We revisit a phenomenological description of turbulent thermal convection along the lines proposed originally by Gough (1965) in which eddies grow solely by extracting energy from…
Effects of alpha-effect fluctuations on simple nonlinear dynamo models
K. J. Richardson, M. R. E. Proctor
We investigate the interaction of a fluctuating alpha-effect with large-scale shear in a simple nonlinear 1-dimensional dynamo wave model. We firstly extend the calculations of Pro…
Asymmetric Heating of the HR 4796A Dust Ring Due to Pericenter Glow
Margaret Moerchen, Laura Churcher, Charles Telesco +3
We have obtained new resolved images of the well-studied HR 4796A dust ring at 18 and 25 microns with the 8-meter Gemini telescopes. These images confirm the previously observed sp…
SN 2009md: Another faint supernova from a low mass progenitor
M. Fraser, M. Ergon, J. J. Eldridge +21
We present adaptive optics imaging of the core collapse supernova (SN) 2009md, which we use together with archival \emph{Hubble Space Telescope} data to identify a coincident proge…
Lagrangian coherent structures in nonlinear dynamos
Erico L. Rempel, Abraham C. -L. Chian, Axel Brandenburg
Turbulence and chaos play a fundamental role in stellar convective zones through the transportof particles, energy and momentum, and in fast dynamos, through the stretching, twisti…
The RAVE Survey: Rich in Very Metal-Poor Stars
Jon P. Fulbright, Rosemary F. G. Wyse, Gregory R. Ruchti +20
Very metal-poor stars are of obvious importance for many problems in chemical evolution, star formation, and galaxy evolution. Finding complete samples of such stars which are also…
Establishing Alpha Oph as a Prototype Rotator: Improved Astrometric Orbit
Sasha Hinkley, John D. Monnier, Ben R. Oppenheimer +24
The nearby star Alpha Oph (Ras Alhague) is a rapidly rotating A5IV star spinning at ~89% of its breakup velocity. This system has been imaged extensively by interferometric techniq…
Parallaxes and physical properties of 11 mid-to-late T dwarfs
F. Marocco, R. L. Smart, H. R. A. Jones +11
We present parallaxes of 11 mid-to-late T dwarfs observed in the UKIRT Infrared Deep Sky Survey. We use these results to test the reliability of model predictions in magnitude-colo…
Three-dimensional chemically homogeneous and bi-abundance photoionization models of the "super-metal-rich" planetary nebula NGC 6153
H. -B. Yuan, X. -W. Liu, D. Péquignot +3
Deep spectroscopy of the planetary nebula (PN) NGC\,6153 shows that its heavy element abundances derived from optical recombination lines (ORLs) are ten times higher than those der…
The red supergiants & Wolf-Rayet stars of NGC 604
John J. Eldridge, Monica Relano
We study the post-main sequence stars in NGC 604, the most luminous HII region in M33. Previously, a number of Wolf-Rayet (WR) stars and one red supergiant (RSG) have been discover…
A search for new members of the beta Pic, Tuc-Hor and epsilon Cha moving groups in the RAVE database
L. L. Kiss, A. Moor, T. Szalai +24
We report on the discovery of new members of nearby young moving groups, exploiting the full power of combining the RAVE survey with several stellar age diagnostic methods and foll…
The Spatial Distribution of Star Formation in the Solar Neighbourhood: Do all stars form in clusters?
E. Bressert, N. Bastian, R. Gutermuth +12
We present a global study of low mass, young stellar object (YSO) surface densities in nearby (< 500 pc) star forming regions based on a comprehensive collection of Spitzer Space T…
Evidence of Impulsive Heating in Active Region Core Loops
Durgesh Tripathi, Helen E. Mason, James A. Klimchuk
Using a full spectral scan of an active region from the Extreme-Ultraviolet Imaging Spectrometer (EIS) we have obtained Emission Measure EM distributions in two different moss…
OGLE-2009-BLG-092/MOA-2009-BLG-137: A Dramatic Repeating Event With the Second Perturbation Predicted by Real-Time Analysis
Y. -H. Ryu, C. Han, K. -H. Hwang +105
We report the result of the analysis of a dramatic repeating gravitational microlensing event OGLE-2009-BLG-092/MOA-2009-BLG-137, for which the light curve is characterized by two…
OGLE-2005-BLG-153: Microlensing Discovery and Characterization of A Very Low Mass Binary
K. -H. Hwang, A. Udalski, C. Han +77
The mass function and statistics of binaries provide important diagnostics of the star formation process. Despite this importance, the mass function at low masses remains poorly kn…
Forming the first planetary systems: debris around Galactic thick disc stars
C. K. W. Sheehan, J. S. Greaves, G. Bryden +4
The thick disc contains stars formed within the first Gyr of Galactic history, and little is known about their planetary systems. The Spitzer MIPS instrument was used to search 11…
A Common Envelope Binary Star Origin of Long Gamma-ray Bursts
Christopher A. Tout, Dayal T. Wickramasinghe, Herbert H. -B. Lau +2
The stellar origin of gamma-ray bursts can be explained by the rapid release of energy in a highly collimated, extremely relativistic jet. This in turn appears to require a rapidly…
Cluster mass dependent truncation of the upper IMF: evidence from observations and simulations
C. Clarke, Th. Maschberger
We attempt to evaluate whether the integrated galactic IMF (IGIMF) is expected to be steeper than the IMF within individual clusters through direct evaluation of whether there is a…
MML 53: a new low-mass, pre-main sequence eclipsing binary in the Upper Centarus-Lupus Region discovered by SuperWASP
L. Hebb, H. C. Stempels, S. Aigrain +8
We announce the discovery of a new low-mass, pre-main sequence eclipsing binary, MML 53. Previous observations of MML 53 found it to be a pre-main sequence spectroscopic multiple a…
Resolved Imaging of the HD191089 Debris Disc
Laura J. Churcher, Mark C. Wyatt, Rachel Smith
Two thirds of the F star members of the 12 Myr old Beta Pictoris Moving Group (BPMG) show significant excess emission in the mid-infrared, several million years after the expected…