• The dynamics of the outer edge of Saturn’s A ring perturbed by the satellites Janus and Epimetheus 

  Araujo, NCS; Renner, S; Cooper, NJ; El Moutamid, M; Murray, CD; Sicardy, B; Neto, EV (Oxford University Press (OUP), 2019)

  We present an analytical model to study the dynamics of the outer edge of Saturn’s A ring. The latter is influenced by 7:6 mean motion resonances with Janus and Epimetheus. Because of the horseshoe motion of the two ...

• Search for the Production of a Long-Lived Neutral Particle Decaying within the ATLAS Hadronic Calorimeter in Association with a Z Boson from pp Collisions at root s=13 TeV 

  Aaboud, M; Aad, G; Abbott, B; Abdinov, O; Abeloos, B; Abhayasinghe, DK; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H (American Physical Society, 2019-04-15)

  This Letter presents a search for the production of a long-lived neutral particle ( Z d ) decaying within the ATLAS hadronic calorimeter, in association with a standard model (SM) Z boson produced via an intermediate ...

• Search for the decay mode B ⁰ → ppp p 

  Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H (American Physical Society, 2018-10-01)

  A search is presented for the four-body decay B 0 → ppp p in a sample of 471 million BB pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e + e - collider. The center-ofmass energy is ...

• Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km 

  Abe, K; Akutsu, R; Ali, A; Andreopoulos, C; Anthony, L; Antonova, M; Aoki, S; Ariga, A; Ashida, Y; Awataguchi, Y (American Physical Society, 2019)

  We perform a search for light sterile neutrinos using the data from the T2K far detector at a baseline of 295 km, with an exposure of 14.7 (7.6)$\times 10^{20}$ protons on target in neutrino (antineutrino) mode. A selection ...

• On Kinetic Slow Modes, Fluid Slow Modes, and Pressure-balanced Structures in the Solar Wind 

  Verscharen, D; Chen, CHK; Wicks, RT (2017-05-10)

• Isocurvature initial conditions for second order Boltzmann solvers 

  Carrilho, P; Malik, KA (IOP Publishing, 2018-08)

  We study how to set the initial evolution of general cosmological fluctuations at second order, after electron-positron annihilation. We compute approximate initial solutions for the transfer functions of all the relevant ...

• Gliese 49: activity evolution and detection of a super-Earth A HADES and CARMENES collaboration 

  Perger, M; Scandariato, G; Ribas, I; Morales, JC; Affer, L; Azzaro, M; Amado, PJ; Anglada-Escude, G; Baroch, D; Barrado, D (The European Southern Observatory, 2019-04-24)

  Context. Small planets around low-mass stars often show orbital periods in a range that corresponds to the temperate zones of their host stars which are therefore of prime interest for planet searches. Surface phenomena ...

• Composite multilayer films based on polyelectrolytes and in situ-formed carbon nanostructures with enhanced photoluminescence and conductivity properties 

  Ermakov, AV; Prikhozhdenko, ES; Demina, PA; Gorbachev, IA; Vostrikova, AM; Sapelkin, AV; Goryacheva, IY; Sukhorukov, GB (2019-04-05)

  © 2019 Wiley Periodicals, Inc. We report a facile route for the fabrication of thin composite films based on polyelectrolytes and carbon nanostructures. Composite films were made by layer-by-layer assembly of polyelectrolyte ...

• The CARMENES search for exoplanets around M dwarfs Activity indicators at visible and near-infrared wavelengths 

  Schoefer, P; Jeffers, SV; Reiners, A; Shulyak, D; Fuhrmeister, B; Johnson, EN; Zechmeister, M; Ribas, I; Quirrenbach, A; Amado, PJ (EDP Sciences, 2019-03-05)

  Context. The Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Echelle Spectrographs (CARMENES) survey is searching for Earth-like planets orbiting M dwarfs using the radial ...

• The CARMENES search for exoplanets around M dwarfs The enigmatic planetary system GJ 4276: one eccentric planet or two planets in a 2:1 resonance? 

  Nagel, E; Czesla, S; Schmitt, JHMM; Dreizler, S; Anglada-Escude, G; Rodriguez, E; Ribas, I; Reiners, A; Quirrenbach, A; Amado, PJ (EDP Sciences, 2019-02-13)

  We report the detection of a Neptune-mass exoplanet around the M4.0 dwarf GJ 4276 (G 232-070) based on radial velocity (RV) observations obtained with the CARMENES spectrograph. The RV variations of GJ 4276 are best explained ...

• The CARMENES search for exoplanets around M dwarfs Chromospheric modeling of M2-3V stars with PHOENIX 

  Hintz, D; Fuhrmeister, B; Czesla, S; Schmitt, JHMM; Johnson, EN; Schweitzer, A; Caballero, JA; Zechmeister, M; Jeffers, SV; Reiners, A (EDP Sciences, 2019-03-20)

  Chromospheric modeling of observed differences in stellar activity lines is imperative to fully understand the upper atmospheres of late-type stars. We present one-dimensional parametrized chromosphere models computed with ...

• Multiple water band detections in the CARMENES near-infrared transmission spectrum of HD 189733 b 

  Alonso-Floriano, FJ; Sanchez-Lopez, A; Snellen, IAG; Lopez-Puertas, M; Nagel, E; Amado, PJ; Bauer, FF; Caballero, JA; Czesla, S; Nortmann, L (EDP Sciences, 2019-01-10)

  Aims. We explore the capabilities of CARMENES for characterising hot-Jupiter atmospheres by targeting multiple water bands, in particular, those at 1.15 and 1.4 μm. Hubble Space Telescope observations suggest that this ...

• Dynamical Masses of epsilon Indi B and C: Two Massive Brown Dwarfs at the Edge of the Stellar-substellar Boundary 

  Dieterich, SB; Weinberger, AJ; Boss, AP; Henry, TJ; Jao, W-C; Gagne, J; Astraatmadja, TL; Thompson, MA; Anglada-Escude, G (IOP Publishing, 2018-09-20)

  We report individual dynamical masses for the brown dwarfs ε Indi B and C, which have spectral types of T1.5 and T6, respectively, measured from astrometric orbit mapping. Our measurements are based on a joint analysis of ...

• CARMENES: high-resolution spectra and precise radial velocities in the red and infrared 

  Quirrenbach, A; Amado, PJ; Ribas, I; Reiners, A; Caballero, JA; Seifert, W; Aceituno, J; Azzaro, M; Baroch, D; Barrado, D (Society of Photo-Optical Instrumentation Engineers (SPIE)., 2018)

  The design and construction of CARMENES has been presented at previous SPIE conferences. It is a next-generation radial-velocity instrument at the 3.5m telescope of the Calar Alto Observatory, which was built by a consortium ...

• Prospects for detecting the astrometric signature of Barnard's Star b 

  Tal-Or, L; Zucker, S; Ribas, I; Anglada-Escude, G; Reiners, A (2019-02-25)

• Accurately computing weak lensing convergence 

  Koksbang, SM; Clarkson, C (Oxford University Press (OUP), 2019-06-11)

  Weak lensing will play an important role in future cosmological surveys, including e.g. Euclid and SKA. Sufficiently accurate theoretical predictions are important for correctly interpreting these surveys and hence for ...

• A potential magnetic field calculator for solar physics applications using staggered grids 

  Boocock, CM; Tsiklauri, D (EDP Sciences, 2019)

  A program has been designed for accurately generating a potential magnetic field on a staggered grid by extrapolating the magnetic field normal to the photospheric surface. The code first calculates a magnetic potential ...

• Association between Tornadoes and Instability of Hosting Prominences 

  Mghebrishvili, I; Zaqarashvili, TV; Kukhianidze, V; Kuridze, D; Tsiklauri, D; Shergelashvili, BM; Poedts, S (IOP Publishing, 2018-07-10)

  We studied the dynamics of all prominence tornadoes detected by the Solar Dynamics Observatory/Atmospheric Imaging Assembly from 2011 January 01 to December 31. In total, 361 events were identified during the whole year, ...

• Differences in 1D electron plasma wake field acceleration in MeV versus GeV and linear versus blowout regimes 

  Tsiklauri, D (AIP Publishing, 2018-03)

  In some laboratory and most astrophysical situations, plasma wake-field acceleration of electrons is one dimensional, i.e., variation transverse to the beam's motion can be ignored. Thus, one dimensional, particle-in-cell ...

• New Regime of Plasma Wake-Field Acceleration in the Extreme Blowout Regime 

  Tsiklauri, D (IEEE, 2019-01)

  The 3-D particle-in-cell simulations are used for studying proton-driven plasma wake-field acceleration that uses a high-energy proton bunch to drive a plasma wake field for electron beam acceleration. A new parameter ...

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