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We present a summary of the observation strategy of TANAMI (Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry), a monitoring program to study the parsec-scale structure and dynamics of relativistic jets in active…

Remote Sensing (RS) is a crucial technology for observing, monitoring, and interpreting our planet, with broad applications across geoscience, economics, humanitarian fields, etc. While artificial intelligence (AI), particularly deep…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Aoran Xiao , Weihao Xuan , Junjue Wang , Jiaxing Huang , Dacheng Tao , Shijian Lu , Naoto Yokoya

The origin(s) of Fast Radio Bursts (FRBs), mysterious radio bursts coming from extragalactic distances, remains unknown. Multi-wavelength observations are arguably the only way to answer this question unambiguously. We attempt to detect…

High Energy Astrophysical Phenomena · Physics 2025-11-26 C. Gouiffés , C. Ng , I. Cognard , M. Dennefeld , N. Devaney , V. S. Dhillon , J. Guilet , P. Laurent , E. Le Floc'h , A. J. Maury , K. Nimmo , A. Shearer , L. G. Spitler , P. Zarka , S. Corbel

Opto-physiological monitoring including photoplethysmography (PPG) provides non-invasive cardiac and respiratory measurements, yet motion artefacts (MAs) during physical activity degrade its signal quality and downstream estimation…

Signal Processing · Electrical Eng. & Systems 2025-11-12 Xiaoyu Zheng , Sijung Hu , Vincent Dwyer , Mahsa Derakhshani , Laura Barrett

Reference systems and frames are crucial for high precision absolute astrometric work, and their foundations must be well-defined. The current frame, the International Celestial Reference Frame, will be discussed: its history, the use of…

Astrophysics · Physics 2009-11-10 E. B. Fomalont

We have used FMOS on Subaru to obtain near-infrared spectroscopy of 123 far-infrared selected galaxies in COSMOS and obtain the key rest-frame optical emission lines. This is the largest sample of infrared galaxies with near-infrared…

In this work some aspects of the detection of certain general relativistic effects in the weak gravitational field of the Earth via laser-ranged data to some existing or proposed geodetic satellites are examined. The focus is on the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Lorenzo Iorio

As radio polarised emission from astrophysical objects traverse through foreground magnetised plasma, the physical conditions along the lines of sight are encrypted in the form of Rotation Measure (RM). We performed broadband…

Astrophysics of Galaxies · Physics 2017-10-10 Yik Ki Ma , Sui Ann Mao , Aritra Basu , Carl Heiles , Jennifer West

Monitoring turbulence parameters is crucial in high-angular resolution astronomy for various purposes, such as optimising adaptive optics systems or fringe trackers. The former are present at most modern observatories and will remain…

Instrumentation and Methods for Astrophysics · Physics 2023-10-25 Nuno Morujão , Carlos Correia , Paulo Andrade , Julien Woillez , Paulo Garcia

This article discusses the main achievements and future perspectives of the MAGNEX spectrometer at the INFN-LNS laboratory in Catania (Italy). MAGNEX is a large acceptance magnetic spectrometer for the detection of the ions emitted in…

Instrumentation and Detectors · Physics 2016-06-23 F. Cappuzzello , C. Agodi , D. Carbone , M. Cavallaro

When testing general relativity (GR) with gravitational wave observations, parametrized tests of deviations from the expected strong-field source dynamics are one of the most widely used techniques. We present an updated version of the…

General Relativity and Quantum Cosmology · Physics 2026-01-12 Soumen Roy , Maria Haney , Geraint Pratten , Peter T. H. Pang , Chris Van Den Broeck

Observations of temporary Forbush decreases (FDs) in the Galactic cosmic ray (GCR) flux due to passage of solar storms are useful for space weather studies and alerts. Here we introduce techniques that use global networks of ground-based…

Ongoing fascination with quantum mechanics keeps driving the development of the wide field of quantum-optics, including its neutron-optics branch. Application of neutron-optical methods and, especially, neutron interferometry and…

Quantum Physics · Physics 2016-06-21 J. Klepp , S. Sponar , Y. Hasegawa

The ground-based EAS array is usually operated with a high duty cycle (> 90%) and a large field of view (~2 sr), which can continuously monitor the sky. It is essential and irreplaceable to understand the gamma-ray emission mechanism and…

High Energy Astrophysical Phenomena · Physics 2013-05-20 SongZhan CHEN

We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS). To select these objects, we first establish a criterion to identify…

Astrophysics of Galaxies · Physics 2024-11-25 John-Michael Eberhard , Amy E. Reines , Hansung B. Gim , Jeremy Darling , Jenny E. Greene

Precision geodesy relies on the stability of the International Celestial Reference Frame (ICRF), yet its reference sources, Active Galactic Nuclei (AGN), exhibit changes in source structure that can manifest as apparent shifts in their…

High Energy Astrophysical Phenomena · Physics 2026-05-20 Jeffrey A. Hodgson , Hana Krasna , Aletha de Witt , Pfesesani van Zyl , Janeth Valverde

Atomic force microscopy (AFM) is an essential nanoinstrument technique for several applications such as cell biology and nanoelectronics metrology and inspection. The need for statistically significant sample sizes means that data…

Instrumentation and Detectors · Physics 2017-04-05 H. Sadeghian , R. Herfst , B. Dekker , J. Winters , T. Bijnagte , R. Rijnbeek

Active Galactic Nuclei (AGN) are energetic astrophysical sources powered by accretion onto supermassive black holes in galaxies, and present unique observational signatures that cover the full electromagnetic spectrum over more than twenty…

The most popular method of the broad-line region size estimation in active galactic nuclei (AGN) is the reverberation mapping based on measuring the time delay between the continuum flux and the flux in the emission lines. In our work, we…

Instrumentation and Methods for Astrophysics · Physics 2020-01-29 Eugene Malygin , Roman Uklein , Elena Shablovinskaya , Aleksander Perepelitsyn , Aleksandra Grokhovskaya