中文
相关论文

相关论文: Combined Swift BAT-XRT Lightcurves

200 篇论文

In this paper we give a brief review of our recent studies on the long and short gamma-ray bursts (GRBs) detected Swift, in an effort to understand the puzzle of classifying GRBs. We consider that it is still an appealing conjecture that…

高能天体物理现象 · 物理学 2014-01-29 Lang Shao , Fu-Wen Zhang , Zi-Gao Dai , Zhi-Ping Jin , Jing-Zhi Yan , Da-Ming Wei

Insect populations are declining globally, making systematic monitoring essential for conservation. Most classical methods involve death traps and counter insect conservation. This paper presents a multisensor approach that uses AI-based…

We discuss the preliminary results of spectral analysis simulations involving anticipated correlated multi-wavelength observations of gamma-ray bursts (GRBs) using Swift's Burst Alert Telescope (BAT) and the Gamma-Ray Large Area Space…

天体物理学 · 物理学 2009-11-13 Michael Stamatikos , Takanori Sakamoto , David L. Band

We report on an observational campaign performed with Swift/XRT on the wind-fed supergiant X-ray binary 4U 1909+07 to investigate the nature of the orbital and superorbital modulation of its X-ray emission. A total of 137 XRT observations…

高能天体物理现象 · 物理学 2025-07-02 P. Romano , H. I. Cohen , E. Bozzo , N. Islam , A. Lange , R. H. D. Corbet , J. B. Coley , K. Pottschmidt

For coupled-channel resonance scattering we derive a model with a closed form solution for the $T$-matrix that satisfies unitarity and analyticity. The two-channel case is handled explicitly for an arbitrary number of resonances. The method…

核理论 · 物理学 2009-11-07 N. E. Ligterink

High mass X-ray binaries hold the promise of giving us understanding of the structure of the winds of their supermassive companion stars by using the emission from the compact object as a backlight to evaluate the variable absorption in the…

高能天体物理现象 · 物理学 2020-11-11 V. Grinberg , M. A. Nowak , N. Hell

We present a systematic study of the steep decay emission from gamma-ray bursts (GRBs) observed by the Swift X-Ray Telescope (XRT). In contrast to the analysis described in recent literature, we produce composite Burst Alert Telescope (BAT)…

天体物理学 · 物理学 2009-11-13 T. Sakamoto , J. E. Hill , R. Yamazaki , L. Angelini , H. A. Krimm , G. Sato , S. Swindell , K. Takami , J. P. Osborne

The single-scatter approximation is fundamental in many tomographic imaging problems including x-ray scatter imaging and optical scatter imaging for certain media. In all cases, noisy measurements are affected by both local scatter events…

图像与视频处理 · 电气工程与系统科学 2021-04-21 Michael R. Walker , Joseph A. O'Sullivan

Recent advancements have exploited diffusion models for the synthesis of either LiDAR point clouds or camera image data in driving scenarios. Despite their success in modeling single-modality data marginal distribution, there is an…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Yichen Xie , Chenfeng Xu , Chensheng Peng , Shuqi Zhao , Nhat Ho , Alexander T. Pham , Mingyu Ding , Masayoshi Tomizuka , Wei Zhan

The Swift/Burst Alert Telescope (BAT) hard X-ray transient monitor provides near real-time coverage of the X-ray sky in the energy range 15-50 keV. The BAT observes 88% of the sky each day with a detection sensitivity of 5.3 mCrab for a…

Motion estimation approaches typically employ sensor fusion techniques, such as the Kalman Filter, to handle individual sensor failures. More recently, deep learning-based fusion approaches have been proposed, increasing the performance and…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Nimet Kaygusuz , Oscar Mendez , Richard Bowden

The usage of cumulative luminosity distributions, constructed thanks to the long-term observations available through wide field hard X-ray imagers, has been recently exploited to study the averaged high energy emission (>17 keV) from…

高能天体物理现象 · 物理学 2015-06-23 E. Bozzo , P. Romano , L. Ducci , F. Bernardini , M. Falanga

This paper aims at providing a comprehensive framework to generate an astrophysical scene and to simulate realistic hyperspectral and multispectral data acquired by two JWST instruments, namely NIRCam Imager and NIRSpec IFU. We want to show…

天体物理仪器与方法 · 物理学 2020-06-24 Claire Guilloteau , Thomas Oberlin , Olivier Berné , Nicolas Dobigeon

Reconstructing images seen by people from their fMRI brain recordings provides a non-invasive window into the human brain. Despite recent progress enabled by diffusion models, current methods often lack faithfulness to the actual seen…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Roman Beliy , Amit Zalcher , Jonathan Kogman , Navve Wasserman , Michal Irani

Hyperspectral cameras can provide unique spectral signatures for consistently distinguishing materials that can be used to solve surveillance tasks. In this paper, we propose a novel real-time hyperspectral likelihood maps-aided tracking…

计算机视觉与模式识别 · 计算机科学 2017-07-13 Burak Uzkent , Aneesh Rangnekar , M. J. Hoffman

Hilbert-Huang Transform (HHT) is a novel data analysis technique for nonlinear and non-stationary data. We present a time-frequency analysis of both simulated light curves and an X-ray burst from the X-ray burster 4U 1702-429 with both the…

天体物理学 · 物理学 2009-11-11 D. Han , S. N. Zhang

We studied the spectral changes of the high-mass X-ray binary system LMC X-4 to understand the origin and mechanisms beyond its super-orbital modulation (30.4 days). To this aim, we obtained a monitoring campaign with Swift/XRT (0.3-10 keV)…

Random binning is an efficient, yet complex, coding technique for the symmetric L-description source coding problem. We propose an alternative approach, that uses the quantized samples of a bandlimited source as "descriptions". By the…

信息论 · 计算机科学 2013-11-20 Adam Mashiach , Jan Ostergaard , Ram Zamir

This paper presents an investigation into the estimation of optical and scene flow using RGBD information in scenarios where the RGB modality is affected by noise or captured in dark environments. Existing methods typically rely solely on…

计算机视觉与模式识别 · 计算机科学 2023-07-31 Youjie Zhou , Guofeng Mei , Yiming Wang , Fabio Poiesi , Yi Wan

We introduce a simple yet effective fusion method of LiDAR and RGB data to segment LiDAR point clouds. Utilizing the dense native range representation of a LiDAR sensor and the setup calibration, we establish point correspondences between…

计算机视觉与模式识别 · 计算机科学 2019-12-20 Georg Krispel , Michael Opitz , Georg Waltner , Horst Possegger , Horst Bischof