KELT-18b: Puffy Planet, Hot Host, Probably Perturbed

Kavli Affiliate: David A. Tirrell| First 5 Authors: Kim K. McLeod, Kim K. McLeod, , , | Summary:We report the discovery of KELT-18b, a transiting hot Jupiter in a 2.87d orbit around the bright (V=10.1), hot, F4V star BD+60 1538 (TYC 3865-1173-1). We present follow-up photometry, spectroscopy, and adaptive optics imaging that allow a detailed […]


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Canonical tilting relative generators

Kavli Affiliate: Alexey Bondal | Summary:Given a relatively projective birational morphism $fcolon Xto Y$ of smooth algebraic spaces with dimension of fibers bounded by 1, we construct tilting relative (over $Y$) generators $T_X,f$ and $S_X,f$ in $mathcalD^b(X)$. We develop a piece of general theory of strict admissible lattice filtrations in triangulated categories and show that […]


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Direct and parametric synchronization of a graphene self-oscillator

Kavli Affiliate: P. G. Steeneken | Summary:We explore the dynamics of a graphene nanomechanical oscillator coupled to a reference oscillator. Circular graphene drums are forced into self-oscillation, at a frequency fosc, by means of photothermal feedback induced by illuminating the drum with a continuous-wave red laser beam. Synchronization to a reference signal, at a frequency […]


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An automated system to measure the quantum efficiency of CCDs for astronomy

Kavli Affiliate: Homer Neal | Summary:We describe a system to measure the Quantum Efficiency in the wavelength range of 300 nm to 1100 nm of 40×40 mm n-channel CCD sensors for the construction of the 3.2 gigapixel LSST focal plane. The technique uses a series of instrument to create a very uniform flux of photons […]


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ALMA Long Baseline Campaigns: Phase Characteristics of Atmosphere at Long Baselines in the Millimeter and Submillimeter Wavelengths

Kavli Affiliate: Richard Hills | Summary:This paper presents the first detailed investigation of the characteristics of mm/submm phase fluctuation and phase correction methods obtained using ALMA with baseline lengths up to ~15 km. Most of the spatial structure functions (SSFs) show that the phase fluctuation increases as a function of baseline length, with a power-law […]


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Multigraded linear series and recollement

Kavli Affiliate: Yukari Ito | Summary:Given a scheme $Y$ equipped with a collection of globally generated vector bundles $E_1, dots, E_n$, we study the universal morphism from $Y$ to a fine moduli space $mathcalM(E)$ of cyclic modules over the endomorphism algebra of $E:=mathcalO_Yoplus E_1opluscdots oplus E_n$. This generalises the classical morphism to the linear series […]


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Massively Parallel Computation of Accurate Densities for N-body Dark Matter Simulations using the Phase-Space-Element Method

Kavli Affiliate: Ralf Kaehler | Summary:This paper presents an accurate density computation approach for large dark matter simulations, based on a recently introduced phase-space tessellation technique and designed for massively parallel, heterogeneous cluster architectures. We discuss a memory efficient construction of an oct-tree structure to sample the mass densities with locally adaptive resolution, according to […]


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Probing microplasticity in small scale FCC crystals via Dynamic Mechanical Analysis

Kavli Affiliate: Julia R. Greer | Summary:In small-scale metallic systems, collective dislocation activity has been correlated with size effects in strength and with a step-like plastic response under uniaxial compression and tension. Yielding and plastic flow in these samples is often accompanied by the emergence of multiple dislocation avalanches. Dislocations might be active pre-yield, but […]


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A pair of Calabi-Yau manifolds from a two parameter non-Abelian gauged linear sigma model

Kavli Affiliate: Kentaro Hori | Summary:We construct and study a two parameter gauged linear sigma model with gauge group $(U(1)^2times O(2))/mathbb Z_2$ that has a dual model with gauge group $(U(1)^2times SO(4))/mathbb Z_2$. The model has two geometric phases, three hybrid phases and one phase whose character is unknown. One of the geometric phases is […]


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Coherent transport properties of a three-terminal hybrid superconducting interferometer

Kavli Affiliate: Yu V. Nazarov | Summary:We present an exhaustive theoretical analysis of a double-loop Josephson proximity interferometer, as the one recently realized by Strambini et al. for the control of the Andreev spectrum via an external magnetic field. This system, called $ω$-SQUIPT, consists of a T-shaped diffusive normal metal (N) attached to three superconductors […]


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