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The relatively unexplored fast radio transient parameter space is known to be home to a variety of interesting sources, including pulsars, pulsar giant pulses and non-thermal emission from planetary magnetospheres. In addition, a variety of…

The field of astrophysics is continuously advancing, with an ever-growing influx of data requiring robust and efficient analysis tools. As the Square Kilometre Array (SKA) radio telescopes come fully operational, we anticipate the…

Instrumentation and Methods for Astrophysics · Physics 2025-04-01 Giuseppe Tudisco , Fabio Vitello , Eva Sciacca , Ugo Becciani

The European Extremely Large Telescope will see first lights by the end of 2024. With a diameter of almost 40 meters, it will be the biggest optical telescope ever built from the ground. The ELT will open a brand new window in a sensitivity…

Instrumentation and Methods for Astrophysics · Physics 2018-12-18 B. Neichel , D. Mouillet , E. Gendron , C. Correia , J. F. Sauvage , T. Fusco

The Atacama Large Millimeter Array, or ALMA, is an international telescope project which will be built over the coming decade in Northern Chile. With over 7000 m^2 of collecting area comprised of 64 12m antennas arrayed over baselines up to…

Astrophysics · Physics 2009-11-07 Alwyn Wootten

The Large Yield Radiometer (LYRA) is a radiometer that has monitored the solar irradiance at high cadence and in four pass bands since January 2010. Both the instrument and its space- craft, PROBA2 (Project for On-Board Autonomy), have…

Solar and Stellar Astrophysics · Physics 2012-10-09 M. Kretzschmar , I. E. Dammasch , M. Dominique , J. Zender , G. Cessateur , E. D Huys

We employed the Very Large Array (VLA) of the National Radio Astronomy Observatory in C configuration to map 39 ultraluminous IRAS galaxies at 6~cm and 20~cm, at resolutions of ~ 4" and 15", respectively, and 24 sources at 6~cm with in the…

Astrophysics · Physics 2008-11-26 Thomas Crawford , Jon Marr , Bruce Partridge , Michael Strauss

We have observed a sample of 9 Extended Green Objects (EGOs) at 1.3 and 5 cm with the VLA with sub-arcsecond resolution and ~7-14 uJy/beam sensitivities in order to characterize centimeter continuum emission as it first appears in these…

Astrophysics of Galaxies · Physics 2022-01-05 A. P. M. Towner , C. L. Brogan , T. R. Hunter , C. J. Cyganowski

Aperture Arrays have played a major role in radio astronomy since the field emerged from the results of long-distance communication tests performed by Karl Jansky in the early 1930's. The roots of this technology extend back beyond Marconi,…

Instrumentation and Methods for Astrophysics · Physics 2013-07-02 M. A. Garrett

The Telescope Array (TA) is the largest ultra-high energy cosmic ray (UHECR) observatory in the Northern Hemisphere. Together with its extensions, TA Low Energy (TALE), TALE infill, and the TA$\times$4 array, it measures extensive air…

High Energy Astrophysical Phenomena · Physics 2026-05-20 Jihyun Kim

I summarize the science drivers presented at the workshop for Phase I of the Square Kilometre Array: 'Advancing Astrophysics with the Square Kilometre Array'. I build from the historical perspective of the original Key Science programs:…

Instrumentation and Methods for Astrophysics · Physics 2014-08-25 Christopher L. Carilli

We present the first part of the observations made for the Continuum Halos in Nearby Galaxies, an EVLA Survey (CHANG-ES) project. The aim of the CHANG-ES project is to study and characterize the nature of radio halos, their prevalence as…

The Cherenkov Telescope Array (CTA) is the next generation observatory for very high energy gamma rays. The capability of the array to detect gamma-rays above 10 TeV is going to be achieved with a large number of Small Size Telescopes…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Anna Barnacka , Leszek Bogacz , Mira Grudzińska , Adam Frankowski , Mateusz Janiak , Piotr Lubiński , Rafał Moderski

The 8 o'clock arc is a gravitationally lensed Lyman Break Galaxy (LBG) at redshift z=2.73 that has a star-formation rate (SFR) of 270 solar-mass/year (derived from optical and near-infrared spectroscopy). Taking the magnification of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Filomena Volino , Olaf Wucknitz , John P. McKean , Michael A. Garrett

The Korean very-long-baseline interferometry (VLBI) network (KVN) and VLBI Exploration of Radio Astrometry (VERA) Array (KaVA) is the first international VLBI array dedicated to high-frequency (23 and 43 GHz bands) observations in East…

The KVN+VERA array is a joint VLBI project of seven VLBI stations spread throughout Korea and Japan. Since the first fringe detection in 2008, the early phase observations of the KVN+VERA have been carried out every several months.…

Instrumentation and Methods for Astrophysics · Physics 2013-10-11 S. Sawada-Satoh

The Cherenkov Telescopes Array (CTA) is planned as the future instrument for very-high-energy (VHE) gamma-ray astronomy with a wide energy range of four orders of magnitude and an improvement in sensitivity compared to current instruments…

The Cherenkov Telescope Array (CTA) is planned to be the next-generation very-high-energy (VHE; E > 100 GeV) gamma-ray observatory. It is anticipated that CTA will improve upon the sensitivity of the current generation of VHE experiments,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 W. Benbow , A. N. Otte

We present the results of radio monitoring observations of Sgr A* at 7 mm (i.e. 43 GHz) with VLBI Exploration of Radio Astrometry (VERA), which is a VLBI array in Japan. VERA provides angular resolutions on millisecond scales, resolving…

Astrophysics of Galaxies · Physics 2015-06-18 Kazunori Akiyama , Motoki Kino , Bong Won Sohn , Sang Sung Lee , Sascha Trippe , Mareki Honma

The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory, investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging…

High Energy Astrophysical Phenomena · Physics 2018-01-22 The CTA Consortium

LOFAR (Low Frequency Array) is an innovative radio telescope optimized for the frequency range 30-240 MHz. The telescope is realized as a phased aperture array without any moving parts. Digital beam forming allows the telescope to point to…