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Automated searches for strong gravitational lensing in optical imaging survey datasets often employ machine learning and deep learning approaches. These techniques require more example systems to train the algorithms than have presently…

天体物理仪器与方法 · 物理学 2021-02-08 Robert Morgan , Brian Nord , Simon Birrer , Joshua Yao-Yu Lin , Jason Poh

As software systems increase in complexity, conventional monitoring methods struggle to provide a comprehensive overview or identify performance issues, often missing unexpected problems. Observability, however, offers a holistic approach,…

分布式、并行与集群计算 · 计算机科学 2024-08-29 Bartosz Balis , Konrad Czerepak , Albert Kuzma , Jan Meizner , Lukasz Wronski

The ESA Packet Telemetry and Telecommand Standards accommodate the requirements of a great variety of scientific space missions, thus providing a standard basis for cost-effective and technically compatible developments of on-board and…

天体物理学 · 物理学 2007-05-23 F. Gianotti , M. Trifoglio

Spectropolarimetry, the observation of polarization and intensity as a function of wavelength, is a powerful tool in stellar astrophysics. It is particularly useful for characterizing stars and circumstellar material, and for tracing the…

One of the more complex tasks for researchers using HPC systems is performance monitoring and tuning of their applications. Developing a practice of continuous performance improvement, both for speed-up and efficient use of resources is…

We present an algorithm that allows fast and efficient detection of transits, including planetary transits, from light-curves. The method is based on building an ensemble of fiducial models and compressing the data using the MOPED…

天体物理学 · 物理学 2009-11-10 Pavlos Protopapas , Raul Jimenez , Charles Alcock

Deep learning has become the gold standard for image processing over the past decade. Simultaneously, we have seen growing interest in orbital activities such as satellite servicing and debris removal that depend on proximity operations…

We present a pre-survey study of using Pan-STARRS high sampling rate video mode guide star images to search for TNOs. With suitable selection of the guide stars within the Pan-STARRS 7 deg^{2} field of view, the lightcurves of these guide…

地球与行星天体物理 · 物理学 2015-05-14 J. -H. Wang , P. Protopapas , W. -P. Chen , C. R. Alcock , W. S. Burgett , T. Dombeck , J. S. Morgan , P. A. Price , J. L. Tonry

Vast amounts of astronomical photometric data are generated from various projects, requiring significant effort to identify variable stars and other object classes. In light of this, a general, widely applicable classification framework…

天体物理仪器与方法 · 物理学 2024-09-23 Kaiming Cui , D. J. Armstrong , Fabo Feng

Cloud computing is essential for modern enterprises, requiring robust tools to monitor and manage Large-Scale Cloud Systems (LCS). Traditional monitoring tools often miss critical insights due to the complexity and volume of LCS telemetry…

分布式、并行与集群计算 · 计算机科学 2025-08-05 Sarah Sohana , William Pourmajidi , John Steinbacher , Andriy Miranskyy

The Transiting Exoplanet Survey Satellite (TESS) mission measured light from stars in ~75% of the sky throughout its two year primary mission, resulting in millions of TESS 30-minute cadence light curves to analyze in the search for…

The Cameras for Allsky Meteor Surveillance (CAMS) project, funded by NASA starting in 2010, aims to map our meteor showers by triangulating meteor trajectories detected in low-light video cameras from multiple locations across 16 countries…

地球与行星天体物理 · 物理学 2023-08-08 Siddha Ganju , Amartya Hatua , Peter Jenniskens , Sahyadri Krishna , Chicheng Ren , Surya Ambardar

Light curves serve as a valuable source of information on stellar formation and evolution. With the rapid advancement of machine learning techniques, it can be effectively processed to extract astronomical patterns and information. In this…

天体物理仪器与方法 · 物理学 2025-03-18 Yu-Yang Li , Yu Bai , Cunshi Wang , Mengwei Qu , Ziteng Lu , Roberto Soria , Jifeng Liu

Aims. With the purpose of determining the orbital parameters of exoplanetary systems from observational data, we have developed a software, named TRADES (TRAnsits and Dynamics of Exoplanetary Systems), to simultaneously fit observed radial…

{\mu}Manager, an open-source microscopy acquisition software, has been an essential tool for many microscopy experiments over the past 15 years, but is not easy to use for experiments in which image acquisition and analysis are closely…

定量方法 · 定量生物学 2024-02-12 Henry Pinkard , Nico Stuurman , Laura Waller

NASA's Kepler Space Telescope has collected high-precision, high-cadence time series photometry on 781,590 unique postage-stamp targets across 21 different fields of view. These observations have already yielded 2,496 scientific…

For light curve generation, a pre-planned photometry survey is needed nowadays, where all of the exposure coordinates have to be given and don't change during the survey. This thesis shows it is not required and we can data-mine these light…

数据库 · 计算机科学 2015-06-25 Ing. Jiří Nádvorník

Star trackers are primarily optical devices that are used to estimate the attitude of a spacecraft by recognising and tracking star patterns. Currently, most star trackers use conventional optical sensors. In this application paper, we…

计算机视觉与模式识别 · 计算机科学 2019-07-11 Tat-Jun Chin , Samya Bagchi , Anders Eriksson , Andre van Schaik

The recently launched NASA Transiting Exoplanet Survey Satellite (TESS) mission is going to collect lightcurves for a few hundred million of stars and we expect to increase the number of pulsating stars to analyze compared to the few…

太阳与恒星天体物理 · 物理学 2018-11-30 L. Bugnet , R. A. García , G. R. Davies , S. Mathur , O. J. Hall , B. M. Rendle