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It has been shown that the observed temporal distribution of transient events in the cosmos can be used to constrain their rate density. Here we show that the peak flux--observation time relation takes the form of a power law that is…

Astrophysics · Physics 2010-11-11 E. Howell , D. Coward , R. Burman , D. Blair

The nature of scientific and technological data collection is evolving rapidly: data volumes and rates grow exponentially, with increasing complexity and information content, and there has been a transition from static data sets to data…

Instrumentation and Methods for Astrophysics · Physics 2016-11-17 S. G. Djorgovski , A. A. Mahabal , C. Donalek , M. J. Graham , A. J. Drake , M. Turmon , T. Fuchs

Simulation-based inference (SBI) has become an important tool in cosmology for extracting additional information from observational data using simulations. However, all cosmological simulations are approximations of the actual universe, and…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-08 Sébastien Pierre , Bruno Régaldo-Saint Blancard , ChangHoon Hahn , Michael Eickenberg

Rapid, large-scale 3D reconstruction from multi-date satellite imagery is vital for environmental monitoring, urban planning, and disaster response, yet remains difficult due to illumination changes, sensor heterogeneity, and the cost of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Rong Fu , Jiekai Wu , Haiyun Wei , Xiaowen Ma , Shiyin Lin , Kangan Qian , Chuang Liu , Jianyuan Ni , Simon James Fong

Small low-cost instruments enable new and exciting mission opportunities yet their constrained volume and limited budgets make them especially susceptible to suffering anomalies during flight. Radiation effects as well as sensor or actuator…

Instrumentation and Detectors · Physics 2024-02-29 Alfonso Lagares de Toledo , Christopher E. Carr

The last decades have witnessed a rapid increase of Earth observation satellites (EOSs), leading to the increasing complexity of EOSs scheduling. On account of the widespread applications of large region observation, this paper aims to…

Instrumentation and Methods for Astrophysics · Physics 2022-06-22 Yi Gu , Chao Han , Yuhan Chen , Shenggang Liu , Xinwei Wang

In this paper, based on the spatio-temporal correlation of sensor nodes in the Internet of Things (IoT), a Spatio-temporal Scope information model (SSIM) is proposed to quantify the scope valuable information of sensor data, which decays…

Information Theory · Computer Science 2022-12-15 Yang Liu , Chen Dong , Xiaoqi Qin , Xiaodong Xu

The Chinese-French SVOM (Space-based Multi-band Astronomical Variable Objects Monitor) mission is dedicated to the study of gamma-ray bursts (GRBs) from the distant universe. A key component of the SVOM Chinese Ground Segment, the Science…

We have searched for the third, 'intermediate', subgroup of gamma-ray bursts among nearly 400 gamma-ray bursts observed by the Swift satellite. The standard chi^2 method and F-test were applied which give support for the existence of this…

High Energy Astrophysical Phenomena · Physics 2010-04-21 D. Huja , J. Ripa

Flagship near-future surveys targeting $10^8-10^9$ galaxies across cosmic time will soon reveal the processes of galaxy assembly in unprecedented resolution. This creates an immediate computational challenge on effective analyses of the…

Instrumentation and Methods for Astrophysics · Physics 2023-10-03 Bingjie Wang , Joel Leja , V. Ashley Villar , Joshua S. Speagle

How ground-based telescopes schedule their observations in response to competing science priorities and constraints, variations in the weather, and the visibility of a particular part of the sky can significantly impact their efficiency. In…

Instrumentation and Methods for Astrophysics · Physics 2019-04-03 Elahesadat Naghib , Peter Yoachim , Robert J. Vanderbei , Andrew J. Connolly , R. Lynne Jones

Today's scientists are quickly moving from in vitro to in silico experimentation: they no longer analyze natural phenomena in a petri dish, but instead they build models and simulate them. Managing and analyzing the massive amounts of data…

Databases · Computer Science 2012-08-02 Farhan Tauheed , Thomas Heinis , Felix Shürmann , Henry Markram , Anastasia Ailamaki

Despite a plethora of anomaly detection models developed over the years, their ability to generalize to unseen anomalies remains an issue, particularly in critical systems. This paper aims to address this challenge by introducing Swift…

Machine Learning · Statistics 2025-03-26 Nguyen Do , Truc Nguyen , Malik Hassanaly , Raed Alharbi , Jung Taek Seo , My T. Thai

Simultaneous observations by the large number of gamma-ray burst detectors operating in the GLAST era will provide the spectra, lightcurves and locations necessary for studying burst physics and testing the putative relations between…

Astrophysics · Physics 2019-08-13 David Band

We present an overview of our Supergiant Fast X-ray Transients (SFXT) project, that started in 2007, by highlighting the unique observational contribution Swift is giving to this exciting new field. By means of outburst detection with…

High Energy Astrophysical Phenomena · Physics 2011-04-01 P. Romano , S. Vercellone , V. La Parola , G. Cusumano , V. Mangano , P. Esposito , J. A. Kennea , D. N. Burrows , H. A. Krimm , C. Pagani , N. Gehrels

We report results of a novel high-energy follow-up observation of a potential Fast Radio Burst. The radio burst was detected by VLA/realfast and followed-up by the Neil Gehrels Swift Observatory in very low latency utilizing new operational…

For the first time, Swift is giving us the opportunity to study supergiant fast X-ray transients (SFXTs) throughout all phases of their life: outbursts, intermediate level, and quiescence. We present our intense monitoring of four SFXTs,…

High Energy Astrophysical Phenomena · Physics 2010-03-17 P. Romano , L. Sidoli , G. Cusumano , V. La Parola , J. A. Kennea , S. Vercellone , L. Ducci , H. A. Krimm , P. Esposito , V. Mangano , A. Paizis , D. N. Burrows , N. Gehrels

We describe a mission architecture designed to substantially increase the science capability of the NASA Science Mission Directorate (SMD) Astrophysics Explorer Program for all AO proposers working within the near-UV to far-infrared…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 M. A. Greenhouse , S. W. Benson , R. D. Falck , D. J. Fixsen , J. P. Gardner , J. B. Garvin , J. W. Kruk , S. R. Oleson , H. A. Thronson

At a fraction the total cost of an equivalent orbital mission, scientific balloon-borne platforms, operating above 99.7% of the Earth's atmosphere, offer attractive, competitive, and effective observational capabilities -- namely space-like…