Linear feature detection algorithm for astronomical surveys – II. Defocusing effects on meteor tracks

Posted by klaurent Stanford

Kavli Affiliate: Andrew Rasmussen | Summary:Given the current limited knowledge of meteor plasma micro-physics and its interaction with the surrounding atmosphere and ionosphere, meteors are a highly interesting observational target for high-resolution wide-field astronomical surveys. Such surveys are capable of resolving the physical size of meteor plasma heads, but they produce large volumes of images […]


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Search for Thermal X-ray Features from the Crab nebula with Hitomi Soft X-ray Spectrometer

Posted by klaurent Tokyo

Kavli Affiliate: Shinichiro Takeda | Summary:The Crab nebula originated from a core-collapse supernova (SN) explosion observed in 1054 A.D. When viewed as a supernova remnant (SNR), it has an anomalously low observed ejecta mass and kinetic energy for an Fe-core collapse SN. Intensive searches were made for a massive shell that solves this discrepancy, but […]


Continue.. Search for Thermal X-ray Features from the Crab nebula with Hitomi Soft X-ray Spectrometer

Extreme variability quasars from the Sloan Digital Sky Survey and the Dark Energy Survey

Posted by klaurent Stanford

Kavli Affiliate: Rafe Schindler | Summary:We perform a systematic search for long-term extreme variability quasars (EVQs) in the overlapping Sloan Digital Sky Survey (SDSS) and 3-Year Dark Energy Survey (DES) imaging, which provide light curves spanning more than 15 years. We identified ~1000 EVQs with a maximum g band magnitude change of more than 1 […]


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The Period map for quantum cohomology of $mathbbP^2$

Posted by klaurent Tokyo

Kavli Affiliate: Todor Milanov | Summary:We invert the period map defined by the second structure connection of quantum cohomology of $mathbbP^2$. For small quantum cohomology the inverse is given explicitly in terms of the Eisenstein series $E_4$ and $E_6$, while for big quantum cohomology the inverse is determined perturbatively as a Taylor series expansion whose […]


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The interplay between long- and short-range temporal correlations shapes cortex dynamics across vigilance states

Posted by klaurent Oxford

Kavli Affiliate: Vladyslav Vyazovskiy | Summary:Increasing evidence suggests that cortical dynamics during wake exhibits long-range temporal correlations suitable to integrate inputs over extended periods of time to increase the signal-to-noise ratio in decision-making and working memory tasks. Accordingly, sleep has been suggested as a state characterized by a breakdown of long-range correlations; detailed measurements of […]


Continue.. The interplay between long- and short-range temporal correlations shapes cortex dynamics across vigilance states

DAC-h3: A Proactive Robot Cognitive Architecture to Acquire and Express Knowledge About the World and the Self

Posted by klaurent MIT

Kavli Affiliate: Peter Ford | Summary:This paper introduces a cognitive architecture for a humanoid robot to engage in a proactive, mixed-initiative exploration and manipulation of its environment, where the initiative can originate from both the human and the robot. The framework, based on a biologically-grounded theory of the brain and mind, integrates a reactive interaction […]


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Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-Based Cross-Correlation Search in Advanced LIGO Data

Posted by klaurent Caltech

Kavli Affiliate: Mikhail G. Shapiro| First 5 Authors: The LIGO Scientific Collaboration, The LIGO Scientific Collaboration, , , | Summary:We present the results of a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using data from the first Advanced LIGO observing run. The search method uses details of the modelled, […]


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Ring objects in the equivariant derived Satake category arising from Coulomb branches (with an appendix by Gus Lonergan)

Posted by klaurent Tokyo

Kavli Affiliate: Hiraku Nakajima | Summary:This is the second companion paper of arXiv:1601.03586. We consider the morphism from the variety of triples introduced in arXiv:1601.03586 to the affine Grassmannian. The direct image of the dualizing complex is a ring object in the equivariant derived category on the affine Grassmannian (equivariant derived Satake category). We show […]


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Atomic-scale Structural and Chemical Characterization of Hexagonal Boron Nitride Layers Synthesized at the Wafer-Scale with Monolayer Thickness Control

Posted by klaurent Caltech

Kavli Affiliate: N. C. Yeh |Summary:Hexagonal boron nitride (h-BN) is a promising two-dimensional insulator with a large band gap and low density of charged impurities that is isostructural and isoelectronic with graphene. Here we report the chemical and atomic-scale structure of CVD-grown wafer-scale (~25 cm2) h-BN sheets ranging in thickness from 1-20 monolayers. Atomic-scale images […]


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Leveraging Continuous Material Averaging for Inverse Electromagnetic Design

Posted by klaurent Berkeley

Kavli Affiliate: Eli Yablonovitch | Summary:Inverse electromagnetic design has emerged as a way of efficiently designing active and passive electromagnetic devices. This maturing strategy involves optimizing the shape or topology of a device in order to improve a figure of merit–a process which is typically performed using some form of steepest descent algorithm. Naturally, this […]


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