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We present a novel probabilistic deep learning approach, the 'Stochastic Latent Transformer' (SLT), designed for the efficient reduced-order modelling of stochastic partial differential equations. Stochastically driven flow models are…

机器学习 · 计算机科学 2024-06-21 Ira J. S. Shokar , Rich R. Kerswell , Peter H. Haynes

Current probabilistic flow-size monitoring can only detect heavy hitters (e.g., flows utilizing 10 times their permitted bandwidth), but cannot detect smaller overuse (e.g., flows utilizing 50-100% more than their permitted bandwidth).…

Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto…

NASA's proposed WFIRST-AFTA mission will discover thousands of exoplanets with separations from the habitable zone out to unbound planets, using the technique of gravitational microlensing. The Study Analysis Group 11 of the NASA Exoplanet…

The paper discusses an assessment study about the impact of the distortions on the astrometric observations with the Extremely Large Telescope originated from the optics positioning errors and telescope instabilities. Optical simulations…

天体物理仪器与方法 · 物理学 2018-06-06 Gabriele Rodeghiero , Jörg-Uwe Pott , Carmelo Arcidiacono , Davide Massari , Martin Glück , Hannes Riechert , Eric Gendron

This white paper recognizes gaps in observations that will, when addressed, much improve solar radiation hazard and geomagnetic storm forecasting. Radiation forecasting depends on observations of the entire "Solar Radiation Hemisphere" that…

A method for conducting leeway field experiments to establish the drift properties of small objects (0.1-25 m) is described. The objective is to define a standardized and unambiguous procedure for condensing the drift properties down to a…

地球物理 · 物理学 2011-11-04 Øyvind Breivik , Arthur A Allen , Christophe Maisondieu , Jens Christian Roth

Information from the sky is important for rescue activity in large-scale disaster or dangerous areas. Observation system using a balloon or an airplane has been studied as an information gathering system from the sky. A balloon observation…

系统与控制 · 计算机科学 2013-12-18 Tohru Ishii , Yasutake Takahashi , Yoichiro Maeda , Takayuki Nakamura

We propose and evaluate the feasibility of a new strategy to search for planets via microlensing. This new strategy is designed to detect planets in "wide" orbits, i.e., with orbital separation, $a$ greater than $\sim 1.5 R_E$. Planets in…

天体物理学 · 物理学 2009-10-30 Rosanne Di Stefano , Richard A. Scalzo

The "Airships: A New Horizon for Science" study at the Keck Institute for Space Studies investigated the potential of a variety of airships currently operable or under development to serve as observatories and science instrumentation…

In the past few years wide-field optical and UV transient surveys as well as X-ray telescopes have allowed us to identify a few dozen candidate tidal disruption events (TDEs). While in theory the physical processes in TDEs are expected to…

高能天体物理现象 · 物理学 2018-06-13 Lixin Dai , Jonathan C. McKinney , Nathaniel Roth , Enrico Ramirez-Ruiz , M. Coleman Miller

During a tidal disruption event, a star is torn apart by the tidal forces of a supermassive black hole, with about 50% of the star's mass eventually accreted by the black hole. The resulting flare can, in extreme cases of super-Eddington…

高能天体物理现象 · 物理学 2021-08-31 Walter Winter , Cecilia Lunardini

In May 2013, I responded with the present paper to ESA's call for White Papers for the definition of Large missions. This was half a year before the launch of ESA's large astrometry mission Gaia. The present proposal for a Gaia successor…

天体物理仪器与方法 · 物理学 2014-08-15 Erik Høg

The staged commissioning of the Large Hadron Collider presents an opportunity to map gross features of particle production over a significant energy range. I suggest a visual tool - event displays in (pseudo)rapidity-transverse-momentum…

高能物理 - 唯象学 · 物理学 2010-01-14 Chris Quigg

Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would make jet quenching…

高能物理 - 唯象学 · 物理学 2020-03-02 Carlota Andres , Néstor Armesto , Harri Niemi , Risto Paatelainen , Carlos A. Salgado

Tidal disruption events (TDEs) of stars by single or binary supermassive black holes (SMBHs) brighten galactic nuclei and reveal a population of otherwise dormant black holes. Adopting event rates from the literature, we aim to establish…

高能天体物理现象 · 物理学 2017-08-30 Anastasia Fialkov , Abraham Loeb

Close-in co-orbital planets (in a 1:1 mean motion resonance) can experience strong tidal interactions with the central star. Here, we develop an analytical model adapted to the study of the tidal evolution of those systems. We use a…

地球与行星天体物理 · 物理学 2023-11-01 Jérémy Couturier , Philippe Robutel , Alexandre C. M. Correia

The working group on jets and high-Et phenomena of the Future physics at HERA Workshop studied subjects ranging from next-to-leading order (NLO) corrections in deeply inelastic scattering (DIS) and photoproduction with the corresponding…

高能物理 - 唯象学 · 物理学 2007-05-23 Martin Erdmann , Dirk Graudenz , Leif Lonnblad , Katsuo Tokushuku

Landing robotic spacecrafts and humans on Mars has become one of the inevitable technological necessities for humans. Effectuating perfect Mars expedition requires landing of enormous cargoes, crewed modules, ascent vehicles, and scientific…

科普物理 · 物理学 2020-08-31 Malaya Kumar Biswal M , Ramesh Naidu Annavarapu

In a companion article, we discussed the radiometric sensitivity and resolution of a new passive optical sensing technique, Space-Time Projection Optical Tomography (SPOT), to detect and track sub-cm and larger space debris for Space…

光学 · 物理学 2022-11-28 Hasan Bahcivan , David J. Brady