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  • Publication . Preprint . Article . Other literature type . 2018
    Open Access English
    Authors: 
    Kévin Lamy; Thierry Portafaix; Béatrice Josse; Colette Brogniez; Sophie Godin-Beekmann; Hassan Bencherif; Laura E. Revell; Hideharu Akiyoshi; Slimane Bekki; Michaela I. Hegglin; +27 more
    Publisher: HAL CCSD
    Country: France
    Project: SNSF | Future and Past Solar Inf... (CRSII2_147659), SNSF | Study to determine Spectr... (200020_163206), EC | STRATOCLIM (603557), SNSF | Volcanic Eruptions and th... (200021_169241)

    We have derived values of the Ultraviolet Index (UVI) at solar noon using the Tropospheric Ultraviolet Model (TUV) driven by ozone, temperature and aerosol fields from climate simulations of the first phase of the Chemistry-Climate Model Initiative (CCMI-1). Since cloud...

  • Open Access English
    Authors: 
    Francesco Cairo; Mauro De Muro; Marcel Snels; Luca Di Liberto; Silvia Bucci; Bernard Legras; Ajil Kottayil; Andrea Scoccione; Stefano Ghisu;
    Publisher: HAL CCSD
    Country: France
    Project: EC | STRATOCLIM (603557)

    Abstract. A polarization diversity elastic backscatter lidar has been deployed in the equatorial island of Palau in February and March 2016, in the framework of the EU Stratoclim project. The system operated unattended in the Atmospheric Observatory of Palau Island from...

  • Open Access English
    Authors: 
    Levi, Michele;
    Publisher: HAL CCSD
    Country: France
    Project: EC | preQFT (639729)

    We present in detail an Effective Field Theory (EFT) formulation for the essential case of spinning objects as the components of inspiralling compact binaries. We review its implementation, carried out in a series of works in recent years, which leveled the high post-Ne...

  • Open Access English
    Authors: 
    T. Guillet; Alain Marty; C. Beigné; C. Vergnaud; M.-T. Dau; Paul Noël; Jacopo Frigerio; Giovanni Isella; Matthieu Jamet;
    Publisher: HAL CCSD
    Countries: Italy, France, France, France
    Project: EC | microSPIRE (766955), ANR | TOP-RISE (ANR-16-CE24-0017)

    Topological insulators (TIs) like Bi$_2$Se$_3$ are a class of material with topologically protected surface states in which spin-momentum locking may enable spin-polarized and defect-tolerant transport. In this work, we achieved the epitaxial growth of Bi$_2$Se$_3$ thin...

  • Publication . Article . Preprint . 2018
    Open Access English
    Authors: 
    Alexander I. Bufetov; Boris Solomyak;
    Publisher: HAL CCSD
    Country: France
    Project: NSF | Fractals and Ergodic Theo... (1361424), EC | IChaos (647133)

    We consider a direct product of a suspension flow over a substitution dynamical system and an arbitrary ergodic flow and give quantitative estimates for the speed of convergence for ergodic integrals of such systems. Our argument relies on new uniform estimates of the s...

  • Open Access English
    Authors: 
    Patrick Ciarlet; Jr.; Martin Vohralik;
    Publisher: HAL CCSD
    Country: France
    Project: EC | GATIPOR (647134)

    International audience We present a posteriori error analysis of diffusion problems where the diffusion tensor is not necessarily symmetric and positive definite and can in particular change its sign. We first identify the correct intrinsic error norm for such problems,...

  • Open Access English
    Authors: 
    P. S. Cowperthwaite; E. Berger; V. A. Villar; B. D. Metzger; M. Nicholl; R. Chornock; P. K. Blanchard; W. Fong; R. Margutti; M. Soares-Santos; +134 more
    Publisher: HAL CCSD
    Countries: United Kingdom, France, United States, United Kingdom
    Project: NSF | Gamma-Ray Bursts: Physics... (1714498), EC | CLUSTERS (335936), NSF | The Progenitors and Explo... (1518052), NSF | Graduate Research Fellows... (1144152), NSF | Gamma-Ray Bursts: From Pr... (1411763), NSF | Gravitational Wave Physic... (1707954)

    We present UV, optical, and NIR photometry of the first electromagnetic counterpart to a gravitational wave source from Advanced LIGO/Virgo, the binary neutron star merger GW170817. Our data set extends from the discovery of the optical counterpart at $0.47$ days to $18...

  • Open Access English
    Authors: 
    Jane Pratt; Isabelle Baraffe; T. Goffrey; T. Constantino; Maxime Viallet; M. V. Popov; Rolf Walder; Doris Folini;
    Country: France
    Project: EC | TOFU (320478), UKRI | DiRAC2: 100 Tflop/s HPC c... (ST/K000373/1)

    We examine a penetration layer formed between a central radiative zone and a large convection zone in the deep interior of a young low-mass star. Using the Multidimensional Stellar Implicit Code (MUSIC) to simulate two-dimensional compressible stellar convection in a sp...

  • Open Access English
    Authors: 
    B. De Marco; Gabriele Ponti; P.-O. Petrucci; Maïca Clavel; Stephane Corbel; R. Belmont; Susmita Chakravorty; Mickael Coriat; S. Drappeau; Jorge Ferreira; +6 more
    Publisher: HAL CCSD
    Countries: France, Italy, Italy
    Project: EC | POLONEZ (665778)

    We studied X-ray reverberation lags in the BHXRB GX 339-4 at the end of the 2014-2015 outburst. We analysed data from a XMM-Newton campaign covering the end of the transition from the soft to the hard state, and the decrease of luminosity in the hard state. During all t...

  • Open Access
    Authors: 
    Pennec, Xavier;
    Publisher: arXiv
    Country: France
    Project: EC | G-Statistics (786854)

    The asymptotic concentration of the Fr{��}chet mean of IID random variables on a Rieman-nian manifold was established with a central limit theorem by Bhattacharya \& Patrangenaru (BP-CLT) [6]. This asymptotic result shows that the Fr{��}chet mean behaves almost as t...