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相关论文: Testing Helioseismic-Holography Inversions for Sup…

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Many helioseismic measurements suffer from substantial systematic errors. A particularly frustrating one is that time-distance measurements suffer from a large center to limb effect which looks very similar to the finite light travel time,…

太阳与恒星天体物理 · 物理学 2015-06-11 Charles S. Baldner , Jesper Schou

We provide the first characterization of the nonlinear and time dependent rheologic response of viscoelastic bottom-up holographic models. More precisely, we perform oscillatory shear tests in holographic massive gravity theories with…

高能物理 - 理论 · 物理学 2020-02-28 Matteo Baggioli , Sebastian Grieninger , Hesam Soltanpanahi

The granulation of red supergiants (RSGs) in the Magellanic Clouds are systematically investigated by combining the latest RSGs samples and light curves from the Optical Gravitational Lensing Experiment and the All-Sky Automated Survey for…

太阳与恒星天体物理 · 物理学 2024-05-03 Zehao Zhang , Yi Ren , Biwei Jiang , Igor Soszynski , Tharindu Jayasinghe

Numerical 3D radiative (M)HD simulations of solar convection are used to understand the physical properties of the solar photosphere. To validate this approach, it is important to check that no excessive thermodynamic fluctuations arise as…

太阳与恒星天体物理 · 物理学 2015-06-16 C. Beck , D. Fabbian , F. Moreno-Insertis , K. G. Puschmann , R. Rezaei

Soil water retention curve (SWRC) and saturated hydraulic conductivity (SHC) are key hydraulic properties for unsaturated zone hydrology and groundwater. In particular, SWRC provides useful information on entry pore-size distribution, and…

计算工程、金融与科学 · 计算机科学 2018-08-29 Behzad Ghanbarian , Vahid Taslimitehrani , Guozhu Dong , Yakov A. Pachepsky

Resolving the most fundamental questions in cosmology requires simulations that match the scale, fidelity, and physical complexity demanded by next-generation sky surveys. To achieve the realism needed for this critical scientific…

Hyperspectral image (HSI) clustering is a challenging task due to its high complexity. Despite subspace clustering shows impressive performance for HSI, traditional methods tend to ignore the global-local interaction in HSI data. In this…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Jingxin Wang , Renxiang Guan , Kainan Gao , Zihao Li , Hao Li , Xianju Li , Chang Tang

Context: Helioseismic inversions rely largely on sensitivity kernels, 3-D spatial functions describing how do the changes in the solar interior translate into the changes of helioseismic observables. These sensitivity kernels come in most…

太阳与恒星天体物理 · 物理学 2024-09-25 Michal Svanda , Daniel Chmurny

We construct and analyse infinite classes of regular supergravity backgrounds dual to four-dimensional superconformal field theories (SCFTs) compactified on a circle with a supersymmetry-preserving twist. These flows lead to…

高能物理 - 理论 · 物理学 2025-07-24 Dimitrios Chatzis , Madison Hammond , Georgios Itsios , Carlos Nunez , Dimitrios Zoakos

Previous studies analyzing the evanescent nature of acoustic waves in the lower solar atmosphere, up to 300\,km above the photosphere, have shown an unexpected phase shift of an order of 1\,s between different heights. Those studies…

太阳与恒星天体物理 · 物理学 2023-06-14 M. Waidele , Junwei Zhao , I. N. Kitiashvili

Super-resolution (SR) models in cosmological simulations use deep learning (DL) to rapidly enhance low-resolution (LR) runs with statistically correct fine details. These models preserves large-scale structures by conditioning on an LR…

宇宙学与河外天体物理 · 物理学 2025-02-13 Xiaowen Zhang , Patrick Lachance , Ankita Dasgupta , Rupert A. C. Croft , Tiziana Di Matteo , Yueying Ni , Simeon Bird , Yin Li

Holographic near-eye displays offer ultra-compact form factors for VR/AR systems but rely on advanced computer-generated holography (CGH) algorithms to convert 3D scenes into interference patterns on spatial light modulators (SLMs).…

图形学 · 计算机科学 2025-12-15 Brian Chao , Jacqueline Yang , Suyeon Choi , Manu Gopakumar , Ryota Koiso , Gordon Wetzstein

Registration of optical and synthetic aperture radar (SAR) remote sensing images serves as a critical foundation for image fusion and visual navigation tasks. This task is particularly challenging because of their modal discrepancy,…

图像与视频处理 · 电气工程与系统科学 2025-11-04 Zixuan Sun , Shuaifeng Zhi , Ruize Li , Jingyuan Xia , Yongxiang Liu , Weidong Jiang

The article is devoted to the simulation of viscous incompressible turbulent fluid flow based on solving the Reynolds averaged Navier-Stokes (RANS) equations with different k-omega models. The isogeometrical approach is used for the…

We complete the reformulation of the holographic correspondence as a \emph{highly efficient RG flow} that can also determine the UV data in the field theory in the strong coupling and large $N$ limit. We introduce a special way to define…

高能物理 - 理论 · 物理学 2016-07-08 Nicolas Behr , Ayan Mukhopadhyay

We present a technique to construct a spectropolarimetrically accurate magneto-hydrostatic model of a large-scale solar magnetic field concentration, mimicking a sunspot. Using the constructed model we perform a simulation of acoustic wave…

太阳与恒星天体物理 · 物理学 2015-04-10 D. Przybylski , S. Shelyag , P. S. Cally

The Sun is the only star where the superficial turbulent convection can be observed at very high spatial resolution. The Solar Dynamics Observatory (SDO) has continuously observed the full Sun from space with multi-wavelength filters since…

太阳与恒星天体物理 · 物理学 2021-08-18 J. Ballot , T. Roudier , J. M. Malherbe , Z. Frank

Precise halo mass ($M_h$) measurements are crucial for cosmology and galaxy formation. HaloFlow introduced a simulation-based inference (SBI) framework that uses state-of-the-art simulated galaxy images to precisely infer $M_h$. However,…

星系天体物理 · 物理学 2026-03-16 Nikhil Garuda , ChangHoon Hahn , Connor Bottrell , Khee-Gan Lee

Solar meridional circulation, which manifests as poleward flow near the surface, is a relatively weak flow. While meridional circulation has been measured through various local helioseismic techniques, there is a lack of consensus about the…

太阳与恒星天体物理 · 物理学 2025-12-08 Samarth G. Kashyap , Shravan M. Hanasoge

We analyze a solar active region observed by the Hinode CaII H line using the time-distance helioseismology technique, and infer wave-speed perturbation structures and flow fields beneath the active region with a high spatial resolution.…

太阳与恒星天体物理 · 物理学 2014-11-20 Junwei Zhao , Alexander G. Kosovichev , Takashi Sekii
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