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相关论文: X-ray photometry

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Remote sensing image processing is so important in geo-sciences. Images which are obtained by different types of sensors might initially be unrecognizable. To make an acceptable visual perception in the images, some pre-processing steps…

计算机视觉与模式识别 · 计算机科学 2017-04-11 Mohammad Reza Khosravi , Habib Rostami , Gholam Reza Ahmadi , Suleiman Mansouri , Ahmad Keshavarz

Multispectral cameras capture images in multiple wavelengths in narrow spectral bands. They offer advanced sensing well beyond normal cameras and many single sensor based multispectral cameras have been commercialized aimed at a broad range…

One of the major goals of research for laser-plasma accelerators is the realization of compact sources of femtosecond X-rays. In particular, using the modest electron energies obtained with existing laser systems, Compton scattering a…

等离子体物理 · 物理学 2013-01-18 K. Ta Phuoc , S. Corde , C. Thaury , V. Malka , A. Tafzi , J. P. Goddet , R. C. Shah , S. Sebban , A. Rousse

The APerture SYNthesis SIMulator is a simple interactive tool to help the students visualize and understand the basics of the Aperture Synthesis technique, applied to astronomical interferometers. The users can load many different…

天体物理仪器与方法 · 物理学 2017-06-07 Ivan Marti-Vidal

Photometric redshifts are a key tool to extract as much information as possible from planned cosmic shear experiments. In this work we aim to test the performances that can be achieved with observations in the near-infrared from space and…

宇宙学与河外天体物理 · 物理学 2015-06-03 Fabio Bellagamba , Massimo Meneghetti , Lauro Moscardini , Micol Bolzonella

Transmission spectroscopy, which consists of measuring the wavelength-dependent absorption of starlight by a planet's atmosphere during a transit, is a powerful probe of atmospheric composition. However, the expected signal is typically…

地球与行星天体物理 · 物理学 2015-05-30 N. P. Gibson , S. Aigrain , S. Roberts , T. M. Evans , M. Osborne , F. Pont

We give a general method to calculate photonic band structure in the form of wave number $k$ as a function of frequency $\omega$, which is required whenever we want to calculate signal intensity related with photonic band structure. This…

材料科学 · 物理学 2007-05-23 Kikuo Cho , Jun Ushida , Motoaki Bamba

In this work, we show that spectroscopic ellipsometry can be combined with photoemission spectroscopy to obtain complete interface band diagrams of non-ideal semiconductor heterointerfaces, such as interfaces between thin-film…

应用物理 · 物理学 2018-08-23 Andrea Crovetto

X-ray echo spectroscopy, a space-domain counterpart of neutron spin echo, is a recently proposed inelastic x-ray scattering (IXS) technique. X-ray echo spectroscopy relies on imaging IXS spectra, and does not require x-ray…

光学 · 物理学 2017-08-04 Yuri Shvyd'ko

X-ray binary systems consist of a companion star and a compact object in close orbit. Thanks to their copious X-ray emission, these objects have been studied in detail using X-ray spectroscopy and timing. The inclination of these systems is…

Most current NeRF variants for satellites are designed for one specific scene and fall short of generalization to new geometry. Additionally, the RGB images require pan-sharpening as an independent preprocessing step. This paper introduces…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Tongtong Zhang , Yuanxiang Li

The EXTraS project (Exploring the X-ray Transient and variable Sky) will harvest the hitherto unexplored temporal domain information buried in the serendipitous data collected by the European Photon Imaging Camera (EPIC) instrument onboard…

高能天体物理现象 · 物理学 2019-08-15 A. De Luca , R. Salvaterra , A. Tiengo , D. D'Agostino , M. G. Watson , F. Haberl , J. Wilms

Advances in unmanned synthetic aperture sonar (SAS) imaging platforms allow for the simultaneous collection of multiband SAS imagery. The imagery is collected over several octaves and the phenomenology's interactions with the sea floor vary…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Isaac D Gerg

The exoplanet revolution is well underway. The last decade has seen order-of-magnitude increases in the number of known planets beyond the Solar system. Detailed characterization of exoplanetary atmospheres provide the best means for…

We model the X-rays reprocessed by an accretion disk in a fiducial low-mass X-ray binary system with a neutron star primary. An atmosphere, or the intermediate region between the optically thick disk and a Compton-temperature corona, is…

天体物理学 · 物理学 2009-11-06 M. A. Jimenez-Garate , J. C. Raymond , D. A. Liedahl , C. J. Hailey

The ability to characterize proteins at sequence-level resolution is vital to biological research. Currently, the leading method for protein sequencing is by liquid chromatography mass spectrometry (LC-MS) whereas proteins are reduced to…

基因组学 · 定量生物学 2025-07-11 René L. Warren

We developed a Python based framework for astronomical image processing and analysis. Astronomical image loading, normalizing, stacking, and filtering processes represent visible range images from grayscale. Besides, the blending process…

天体物理仪器与方法 · 物理学 2024-10-10 Tanmoy Bhowmik , MD Fardin Islam , Kazi Nusrat Tasneem , Rantideb Roy , Rownok Shahariar

Feynman once asked physicists to build better electron microscopes to be able to watch biology at work. While electron microscopes can now provide atomic resolution, electron beam induced specimen damage precludes high resolution imaging of…

Highest resolution imaging in astronomy is achieved by interferometry, connecting telescopes over increasingly longer distances, and at successively shorter wavelengths. Here, we present the first diffraction-limited images in visual light,…

天体物理仪器与方法 · 物理学 2015-04-21 Dainis Dravins , Tiphaine Lagadec , Paul D. Nuñez

We develop in detail a recently proposed optical-path modification of astronomical intensity interferometers. Extended-Path Intensity Correlation (EPIC) introduces a tunable path extension, enabling differential astrometry of multiple…

天体物理仪器与方法 · 物理学 2023-07-17 Marios Galanis , Ken Van Tilburg , Masha Baryakhtar , Neal Weiner