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相关论文: $JetCurry$ I. Reconstructing Three-Dimensional Jet…

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Navigation in complex 3D scenarios requires appropriate environment representation for efficient scene understanding and trajectory generation. We propose a highly efficient and extensible global navigation framework based on a tomographic…

机器人学 · 计算机科学 2024-03-13 Bowen Yang , Jie Cheng , Bohuan Xue , Jianhao Jiao , Ming Liu

Machine learning, particularly deep neural networks, has been widely used in high-energy physics, demonstrating remarkable results in various applications. Furthermore, the extension of machine learning to quantum computers has given rise…

高能物理 - 唯象学 · 物理学 2025-01-23 Yi-An Chen , Kai-Feng Chen

We report first results from KVN and VERA Array (KaVA) VLBI observations obtained in the frame of our Plasma-physics of Active Galactic Nuclei (PAGaN) project. We observed eight selected AGN at 22 and 43 GHz in single polarization (LCP)…

The collimation of relativistic jets launched from the vicinity of supermassive black holes (SMBHs) at the centers of active galactic nuclei (AGN) is one of the key questions to understand the nature of AGN jets. However, little is known…

3C84 (NGC1275) is one of the brightest radio sources in the mm radio-bands, which led to a plethora of VLBI observations at numerous frequencies over the years. They reveal a two-sided jet structure, with an expanding but not…

Recent years have witnessed the growth of point cloud based applications because of its realistic and fine-grained representation of 3D objects and scenes. However, it is a challenging problem to compress sparse, unstructured, and…

图像与视频处理 · 电气工程与系统科学 2020-11-10 Jianqiang Wang , Dandan Ding , Zhu Li , Zhan Ma

M87 is one of the best available source for studying the AGN jet-launching region. To enrich our knowledge of this region, with quasi-simultaneous observations using VLBA at 22, 43 and 86 GHz, we capture the images of the radio jet in M87…

星系天体物理 · 物理学 2019-11-01 Wei Zhao , Xiaoyu Hong , Tao An , Xiaofeng Li , Xiaopeng Cheng , Fang Wu

[abridged] Aims: We test the effects of re-orienting jets from an active galactic nucleus (AGN) on the intracluster medium in a galaxy cluster environment with short central cooling time. We investigate appearance and properties of the…

星系天体物理 · 物理学 2018-09-19 S. Cielo , A. Babul , V. Antonuccio-Delogu , J. Silk , M. Volonteri

Deep learning techniques have the power to identify the degree of modification of high energy jets traversing deconfined QCD matter on a jet-by-jet basis. Such knowledge allows us to study jets based on their initial, rather than final…

高能物理 - 唯象学 · 物理学 2022-04-04 Yi-Lun Du , Daniel Pablos , Konrad Tywoniuk

Graph neural networks such as ParticleNet and transformer based networks on point clouds such as ParticleTransformer achieve state-of-the-art performance on jet tagging benchmarks at the Large Hadron Collider, yet the physical reasoning…

高能物理 - 唯象学 · 物理学 2026-04-29 Pahal D. Patel , Sanmay Ganguly

Since the turn of the century, astronomers have been exploiting the rich information afforded by combining stellar kinematic maps and imaging in an attempt to recover the intrinsic, three-dimensional (3D) shape of a galaxy. A common…

天体物理仪器与方法 · 物理学 2024-05-15 Suk Yee Yong , K. E. Harborne , Caroline Foster , Robert Bassett , Gregory B. Poole , Mitchell Cavanagh

Supermassive black holes can launch powerful jets which can be some of the most luminous multi-wavelength sources; decades after their discovery their physics and energetics are still poorly understood. The past decade has seen a dramatic…

高能天体物理现象 · 物理学 2018-11-07 M. Lucchini , S. Markoff , P. Crumley , F. Krauß , R. M. T. Connors

Neural rendering techniques have made substantial progress in generating photo-realistic 3D scenes. The latest 3D Gaussian Splatting technique has achieved high quality novel view synthesis as well as fast rendering speed. However, 3D…

图形学 · 计算机科学 2025-05-09 Xinran Yang , Donghao Ji , Yuanqi Li , Jie Guo , Yanwen Guo , Junyuan Xie

The class of Double-Double Radio Galaxies (DDRGs) relates to episodic jet outbursts. How various regions and components add to the total intensity in radio images is less well known. In this paper we synthesize synchrotron images for DDRGs…

高能天体物理现象 · 物理学 2020-07-30 S. Walg , A. Achterberg , S. Markoff , R. Keppens , O. Porth

The application of autonomous UAVs to infrastructure inspection tasks provides benefits in terms of operation time reduction, safety, and cost-effectiveness. This paper presents trajectory planning for three-dimensional autonomous multi-UAV…

最优化与控制 · 数学 2022-12-20 Stefan Ivić , Bojan Crnković , Luka Grbčić , Lea Matleković

A wealth of literature exists on computing and visualizing cuts for the magnetic scalar potential of a current carrying conductor via Finite Element Methods (FEM) and harmonic maps to the circle. By a cut we refer to an orientable surface…

计算物理 · 物理学 2019-06-19 Alex Stockrahm , Valtteri Lahtinen , Jari J. J. Kangas , P. Robert Kotiuga

In 3D shape recognition, multi-view based methods leverage human's perspective to analyze 3D shapes and have achieved significant outcomes. Most existing research works in deep learning adopt handcrafted networks as backbones due to their…

计算机视觉与模式识别 · 计算机科学 2020-12-11 Zhaoqun Li , Hongren Wang , Jinxing Li

Jet measurements in heavy ion collisions can provide constraints on the properties of the quark gluon plasma, but the kinematic reach is limited by a large, fluctuating background. We present a novel application of symbolic regression to…

The study of jet launching in AGN is an important research method to better understand supermassive black holes (SMBHs) and their immediate surroundings. The main theoretical jet launching scenarios invoke either magnetic field lines…

星系天体物理 · 物理学 2023-12-05 G. F. Paraschos , J. -Y. Kim , T. P. Krichbaum , J. Oh , J. A. Hodgson , M. A. Gurwell , J. A. Zensus

In this paper, negatively inclined buoyant jets, which appear during the discharge of wastewater from processes such as desalination, are observed. To minimize harmful effects and assess environmental impact, a detailed numerical…

机器学习 · 计算机科学 2022-11-11 Marta Alvir , Luka Grbčić , Ante Sikirica , Lado Kranjčević