Showing 2013Show all

332 papers · 1 filter

astro-ph.GA2013★ 47 cited

The Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705

L. Magrini, S. Randich, D. Romano +50

Open clusters are key tools to study the spatial distribution of abundances in the disk and their evolution with time. Using the first release of stellar parameters and abundances…

hep-th2013★ 15 cited

BPS domain walls from backreacted orientifolds

Johan Blåbäck, Bert Janssen, Thomas Van Riet +1

Compactifications with D-brane and orientifold sources lead to standard gauged supergravity theories if the sources are smeared over the internal directions. It is therefore of int…

math.CV2013

Semi-Bloch functions in several complex variables

Ulf Backlund, Linus Carlsson, Anders Fällström +1

Let be an -dimensional complex manifold. A holomorphic function is said to be semi-Bloch if for every the function is n…

math.QA2013★ 5 cited

A diagrammatic categorification of the affine q-Schur algebra S(n,n) for n > 2

Marco Mackaay, Anne-Laure Thiel

This is a follow-up to the paper in which we categorified the affine quantum Schur algebra S(n,r) for 2 < r < n, using a quotient of Khovanov and Lauda's categorification of the af…

astro-ph.SR2013★ 70 cited

Emergence of granular-sized magnetic bubbles through the solar atmosphere: I. Spectropolarimetric observations and simulations

Ada Ortiz, Luis Bellot Rubio, Viggo Hansteen +2

We study a granular-sized magnetic flux emergence event that occurred in NOAA 11024 in July 2009. The observations were made with the CRISP spectropolarimeter at the Swedish 1 m So…

math.CO2013★ 7 cited

Graph properties, graph limits and entropy

Hamed Hatami, Svante Janson, Balázs Szegedy

We study the relation between the growth rate of a graph property and the entropy of the graph limits that arise from graphs with that property. In particular, for hereditary class…

cond-mat.str-el2013★ 1 cited

Non-trivial order parameter in SrIrO

Shreemoyee Ganguly, Oscar Granas, Lars Nordstrom

Electronic structure calculations obtained with an approach with density functional theory with an enhanced local Coulomb interaction, DFT+, are presented for the relativistic m…

math.RT2013★ 118 cited

Simple sl_{n+1}-module structures on U(h)

Jonathan Nilsson

We study the category M consisting of U(sl_{n+1})-modules whose restriction to U(h) is free of rank 1, in particular we classify isomorphism classes of objects in M and determine t…

astro-ph.SR2013★ 49 cited

The Gaia-ESO Survey: Reevaluation of the parameters of the open cluster Trumpler 20 using photometry and spectroscopy

P. Donati, T. Cantat-Gaudin, A. Bragaglia +34

Trumpler 20 is an old open cluster (OC) located toward the Galactic centre, at about 3 kpc from the Sun and 7 kpc from the Galactic centre. Its position makes this cluster pa…

astro-ph.SR2013★ 24 cited

A new procedure for defining a homogenous line-list for solar-type stars

S. G. Sousa, N. C. Santos, V. Adibekyan +9

Context. The homogenization of the stellar parameters is an important goal for large observational spectroscopic surveys, but it is very difficult to achieve it because of the dive…

astro-ph.HE2013★ 1.6k cited

Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector

IceCube Collaboration, M. G. Aartsen, R. Abbasi +275

We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follo…

math.DG2013

A geometric classification of the path components of the space of locally stable maps

Ole Andersson

Locally stable maps are classified up to homotopy through locally stable maps. The equivalence class of a map is determined by three invariants: the isotop…

math.AP2013

Lower semicontinuity of weak supersolutions to the porous medium equation

Benny Avelin, Teemu Lukkari

Weak supersolutions to the porous medium equation are defined by means of smooth test functions under an integral sign. We show that nonnegative weak supersolutions become lower se…

astro-ph.SR2013

Magnetic Doppler Imaging of He-strong star HD 184927

I. Yakunin, G. Wade, D. Bohlender +3

We have employed an extensive new timeseries of Stokes I and V spectra obtained with the ESPaDOnS spectropolarimeter at the 3.6-m Canada-France-Hawaii Telescope to investigate the…

hep-ex2013★ 19 cited

Search for a multi-Higgs-boson cascade in WWbb events with the ATLAS detector in pp collisions at sqrt(s) = 8 TeV

ATLAS Collaboration

A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson H0, an intermediate charged Higgs boson pair H+-, and a light Higgs…

math.PR2013★ 1 cited

On degenerate sums of -dependent variables

Svante Janson

It is well-known that the central limit theorem holds for partial sums of a stationary sequence of -dependent random variables with finite variance; however, the limit m…

hep-th2013★ 18 cited

Localization at Large N

J. G. Russo, K. Zarembo

We review how localization is used to probe holographic duality and, more generally, non-perturbative dynamics of four-dimensional N=2 supersymmetric gauge theories in the planar l…

math.PR2013★ 2 cited

Asymptotic normality of fringe subtrees and additive functionals in conditioned Galton--Watson trees

Svante Janson

We consider conditioned Galton-Watson trees and show asymptotic normality of additive functionals that are defined by toll functions that are not too large. This includes, as a spe…

cond-mat.mtrl-sci2013★ 26 cited

Depth dependent magnetization profiles of hybrid exchange springs

T. N. Anh Nguyen, R. Knut, V. Fallahi +8

We report on the magnetization depth profile of a hybrid exchange spring system in which a Co/Pd multilayer with perpendicular anisotropy is coupled to a CoFeB thin film with in-pl…

hep-ex2013★ 94 cited

Search for long-lived stopped R-hadrons decaying out-of-time with pp collisions using the ATLAS detector

ATLAS Collaboration

An updated search is performed for gluino, top squark, or bottom squark R-hadrons that have come to rest within the ATLAS calorimeter, and decay at some later time to hadronic jets…

hep-ex2013★ 86 cited

Test of CPT and Lorentz symmetry in entangled neutral kaons with the KLOE experiment

2 Collaboration, D. Babusci, I. Balwierz-Pytko +70

Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis…

hep-th2013★ 16 cited

An alternative to anti-branes and O-planes?

Ulf Danielsson, Giuseppe Dibitetto

In this paper we consider type IIA compactifications in the isotropic Z2 x Z2 orbifold with a flux-induced perturbative superpotential combined with non-perturbative effects. Witho…

hep-th2013★ 34 cited

De Sitter Vacua from Non-perturbative Flux Compactifications

Johan Blåbäck, Diederik Roest, Ivonne Zavala

We present stable de Sitter solutions of supergravity in a geometric type IIB duality frame with the addition of non-perturbative contributions. Contrary to the s…

hep-th2013★ 48 cited

Three-dimensional N=2 supergravity theories: From superspace to components

Sergei M. Kuzenko, Ulf Lindstrom, Martin Rocek +2

For general off-shell N=2 supergravity-matter systems in three spacetime dimensions, a formalism is developed to reduce the corresponding actions from superspace to components. The…