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
597 papers · 1 filter
Varying Couplings in Electroweak Theory
Douglas J. Shaw, John D. Barrow
We extend the theory of Kimberly and Magueijo for the spacetime variation of the electroweak couplings in the unified Glashow-Salam-Weinberg model of the electroweak interaction to…
Rapid X-ray Variability of Seyfert 1 Galaxies
S. Vaughan, A. C. Fabian, K. Iwasawa
The rapid and seemingly random fluctuations in X-ray luminosity of Seyfert galaxies provided early support for the standard model in which Seyferts are powered by a supermassive bl…
Source subtraction for the extended Very Small Array and 33-GHz source count estimates
Kieran A. Cleary, Angela C. Taylor, Elizabeth Waldram +16
We describe the source subtraction strategy and observations for the extended Very Small Array, a CMB interferometer operating at 33 GHz. A total of 453 sources were monitored at 3…
Cooling many particles to very low temperatures
Almut Beige, Peter L. Knight, Giuseppe Vitiello
In a recent paper [Beige, Knight, and Vitiello, quant-ph/0404160], we showed that a large number N of particles can be cooled very efficiently using a bichromatic interaction. The…
A class of identities relating Whittaker and Bessel functions
James Lucietti
Identities between Whittaker and modified Bessel functions are derived for particular complex orders. Certain polynomials appear in such identities, which satisfy a fourth order di…
Bulk black holes radiating in non-Z_2 brane-world spacetimes
David Jennings, Ian R. Vernon, Anne-Christine Davis +1
In this paper we present a general asymmetric brane model involving arbitrary energy transport to and from an embedded 4-D FRW universe. We derive a locally defined mass function f…
Investigation of the growth and magnetic properties of highly oriented films of the Heusler alloy Co2MnSi on GaAs(001)
L. J. Singh, Z. H. Barber, A. Kohn +4
Highly (001) oriented thin films of Co2MnSi have been grown on lattice matched GaAs(001) without a buffer layer. Stoichiometric films exhibited a saturation magnetization slightly…
Probing the environment in Gamma-ray bursts: the case of an X-ray precursor, afterglow late onset and wind vs constant density profile in GRB011121 and GRB011211
L. Piro, M. De Pasquale, P. Soffitta +9
In this paper we present BeppoSax and XMM observations of two long Gamma-ray bursts, the X-ray rich event of December 11, 2001 (GRB011211) and the hard and very bright event of Nov…
Electrically charged dilatonic black rings
Hari K. Kunduri, James Lucietti
In this note we present (electrically) charged dilatonic black ring solutions of the Einstein-Maxwell-dilaton theory in five dimensions and we consider their physical properties. T…
Precursor activity in bright long BATSE gamma-Ray Bursts
Davide Lazzati
We study a sample of bright long BATSE GRB light curves in the 200 s before the detection of the GRB prompt emission. We find that in a sizable fraction of cases (20 %) there is ev…
Primeness, semiprimeness and localisation in Iwasawa algebras
Konstantin Ardakov, Kenneth A. Brown
Necessary and sufficient conditions are given for the completed group algebras of a compact p-adic analytic group with coefficient ring the p-adic integers or the field of p elemen…
Broad Iron Lines in AGN and X-ray Binaries
A. C. Fabian
Several AGN and black hole X-ray binaries show a clear very broad iron line which is strong evidence that the black holes are rapidly spinning. Detailed analysis of these objects s…
Asymptotic behaviour of the Rayleigh--Taylor instability
Laurent Duchemin, Christophe Josserand, Paul Clavin
We investigate long time numerical simulations of the inviscid Rayleigh-Taylor instability at Atwood number one using a boundary integral method. We are able to attain the asymptot…
Soft lubrication: the elastohydrodynamics of non-conforming and conforming contacts
J. M. Skotheim, L. Mahadevan
We study the lubrication of fluid-immersed soft interfaces and show that elastic deformation couples tangential and normal forces and thus generates lift. We consider materials tha…
The Lyman-alpha forest opacity and the metagalactic hydrogen ionization rate at z~2-4
James S. Bolton, Martin G. Haehnelt, Matteo Viel +1
Estimates of the metagalactic hydrogen ionization rate from the Lyman-alpha forest opacity in QSO absorption spectra depend on the complex density distribution of neutral hydrogen…
Matrix Cosmology
Daniel Z. Freedman, Gary W. Gibbons, Martin Schnabl
Some speculative preliminary ideas relating matrix theory and cosmology are discussed.
Structure and equation of state of interaction site models for disc-shaped lamellar colloids
Dino Costa, Jean-Pierre Hansen, Ludger Harnau
We apply RISM (Reference Interaction Site Model) and PRISM (polymer-RISM) theories to calculate the site-site pair structure and the osmotic equation of state of suspensions of cir…
Identifying "communities" within energy landscapes
Claire P. Massen, Jonathan P. K. Doye
Potential energy landscapes can be represented as a network of minima linked by transition states. The community structure of such networks has been obtained for a series of small…
Complete Multiwavelength Characterization of Faint Chandra X-ray Sources Seen in the Spitzer Wide-Area IR Extragalactic (SWIRE) Survey
A. Franceschini, J. Manners, M. Polletta +24
We exploit deep combined observations with Spitzer and Chandra of the SWIRE survey in the ELAIS-N1 region, to investigate the nature of the faint X-ray and IR sources in common, to…
Numerical Results on Low Mass Star and Brown Dwarf Multiplicity
Eduardo Delgado-Donate, Cathie Clarke
We have undertaken a series of hydrodynamic + N-body simulations in order to explore the properties of young stars. Our results suggest that the IMF may be sensitive to environment…
Dynamics of the BCS-BEC crossover in a degenerate Fermi gas
M. H. Szymanska, B. D. Simons, K. Burnett
We study the short-time dynamics of a degenerate Fermi gas positioned near a Feshbach resonance following an abrupt jump in the atomic interaction resulting from a change of extern…
Was the Narrow Line Seyfert 1 RGB J0044+193 ever radio loud?
T. J. Maccarone, J. C. A. Miller-Jones, R. P. Fender +1
We show new radio data and a re-analysis of old data for the Narrow Line Seyfert 1 (NLSy1) galaxy RGB J0044+193. This galaxy has previously been suggested to be both radio loud, an…
Geometrical constraints upon the unipolar model of V407 Vul and RXJ0806.3+1527
S. C. C. Barros, T. R. Marsh, P. Groot +5
V407 Vul and RX J0806.3+1527 are X-ray emitting stars with X-ray light curves that are 100% modulated on periods of 569 and 321 seconds respectively. These periods and no others ar…
The problem of small and large scale fields in the solar dynamo
A. Brandenburg, N. E. L. Haugen, P. J. Käpylä +1
Three closely related stumbling blocks of solar mean field dynamo theory are discussed: how dominant are the small scale fields, how is the alpha effect quenched, and whether magne…