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As an emerging approach to space situational awareness and space imaging, the practical use of an event-based camera in space imaging for precise source analysis is still in its infancy. The nature of event-based space imaging and data…

信号处理 · 电气工程与系统科学 2022-11-21 Nicholas Owen Ralph , Alexandre Marcireau , Saeed Afshar , Nicholas Tothill , André van Schaik , Gregory Cohen

Modern detectors of cosmic gamma-rays are a special type of imaging telescopes (air Cherenkov telescopes) supplied with cameras with a relatively large number of photomultiplier-based pixels. For example, the camera of the TAIGA-IACT…

Pulsed UV lasers can provide useful "testbeams" for observatories that use optical detectors, especially fluorescence detectors, to measure high energy cosmic-rays. The light observed by the detector is proportional to the energy of the…

天体物理仪器与方法 · 物理学 2011-05-23 Lawrence Wiencke , Fernando Arqueros , John Compton , Maria Monasor , David Pilger , Jaime Rosado

We show here how to create from digital films using the well-known software Tracker stroboscopic photos in order to analyze different types of movements. The advantage of this procedure is that it is possible to analyze the printed photo or…

物理教育 · 物理学 2019-01-17 Daniel Baccino , Álvaro Suárez , Arturo C. Martí

Many forms of programmable matter have been proposed for various tasks. We use an abstract model of self-organizing particle systems for programmable matter which could be used for a variety of applications, including smart paint and…

新兴技术 · 计算机科学 2017-10-24 Alexandra Porter , Andréa W. Richa

We report on the initial phase of an ongoing, multi-stage investigation of how to incorporate Virtual Reality (VR) technology in teaching introductory astronomy concepts. Our goal was to compare the efficacy of VR vs. conventional teaching…

物理教育 · 物理学 2021-05-03 Philip Blanco , Gur Windmiller , William Welsh , Sean Hauze

We review the mathematical models available for relativistic astrometry, discussing the different approaches and their accuracies in the context of the modern experiments from space like Gaia and GAME, and we show how these models can be…

广义相对论与量子宇宙学 · 物理学 2014-04-04 Alberto Vecchiato , Mario Gai , Mario G. Lattanzi , Mariateresa Crosta , Ugo Becciani , Stefano Bertone

Having a need to perform differential photometry for tens of thousands stars in a several square degrees field, we developed Astrokit program. The software corrects the star brightness variations caused by variations of atmospheric…

天体物理仪器与方法 · 物理学 2015-06-22 Artem Y. Burdanov , Vadim V. Krushinsky , Alexander A. Popov

The complexity and accuracy of current and future precision cosmology observational campaigns has made it essential to develop an efficient technique for directly combining simulation and observational datasets to determine cosmological and…

天体物理学 · 物理学 2009-11-11 Katrin Heitmann , David Higdon , Charles Nakhleh , Salman Habib

The rapid growth in scale and complexity of both computational and observational astrophysics over the past decade necessitates efficient and intuitive methods for examining and visualizing large datasets. Here, I present {\it AstroBlend},…

天体物理仪器与方法 · 物理学 2016-02-11 J. P. Naiman

Relativistic positioning systems are interesting {\em technical objects} for applications around the Earth and in the Solar system. But above all else, they are basic {\em scientific objects} allowing developing relativity from its own…

广义相对论与量子宇宙学 · 物理学 2013-02-26 Bartolomé Coll

The paper explores the use of various machine learning methods to search for heterogeneous or atypical structures on astronomical maps. The study was conducted on the maps of the cosmic microwave background radiation from the Planck mission…

天体物理仪器与方法 · 物理学 2024-11-14 I. A. Karkin , A. A. Kirillov , E. P. Savelova

All sciences, including astronomy, are now entering the era of information abundance. The exponentially increasing volume and complexity of modern data sets promises to transform the scientific practice, but also poses a number of common…

天体物理学 · 物理学 2016-11-17 S. G. Djorgovski

Studies of future space- and ground-based exoplanet surveys often rely on models of planetary systems to simulate instrument response, estimate scientific yields, perform trade analyses, and study efficient observation strategies. Until…

地球与行星天体物理 · 物理学 2022-02-09 Christopher C. Stark

A large scientific community depends on the precise modelling of complex processes in particle cascades in various types of matter. These models are used most prevalently in cosmic-ray physics, astrophysical-neutrino physics, and gamma-ray…

天体物理仪器与方法 · 物理学 2018-12-20 Ralph Engel , Dieter Heck , Tim Huege , Tanguy Pierog , Maximilian Reininghaus , Felix Riehn , Ralf Ulrich , Michael Unger , Darko Veberič

The Astrophysics of microquasars - galactic miniatures of the far distant quasars - has become one of the most active fields of modern Astronomy in recent years. Here I review the astronomical methods used for the investigation of these…

天体物理学 · 物理学 2009-09-29 Maria Massi

Humans navigate in their environment by learning a mental model of the world through passive observation and active interaction. Their world model allows them to anticipate what might happen next and act accordingly with respect to an…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Anthony Hu

The continuing monitoring and surveying of the nearby space to detect Near Earth Objects (NEOs) and Near Earth Asteroids (NEAs) are essential because of the threats that this kind of objects impose on the future of our planet. We need more…

天体物理仪器与方法 · 物理学 2019-01-15 V. Bacu , A. Sabou , T. Stefanut , D. Gorgan , O. Vaduvescu

In recent years, machine learning (ML) methods have remarkably improved how cosmologists can interpret data. The next decade will bring new opportunities for data-driven cosmological discovery, but will also present new challenges for…

Due to the lack of test-beams in ground-based gamma-ray astronomy, detector calibration has been a major challenge in this field. However, with the use of Cherenkov ring-images due to cosmic-ray muons and of strong gamma-ray signals, the…

天体物理学 · 物理学 2019-08-14 Frederic Piron