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The purpose of this document is to discuss applications of the antenna-level buffering capability being implemented in SKA-LOW. In addition to their scientific motivation -- to detect and study cosmic rays interacting in the atmosphere --…

Instrumentation and Methods for Astrophysics · Physics 2019-06-24 A. Nelles , J. D. Bray , C. W. James

Radio astronomy is entering a new era with new and future radio observatories such as the Low Frequency Array and the Square Kilometer Array. We describe in detail an automated flagging pipeline and evaluate its performance. With only a…

Instrumentation and Methods for Astrophysics · Physics 2010-07-16 A. R. Offringa , A. G. de Bruyn , S. Zaroubi , M. Biehl

This decade, the Square Kilometre Array (SKA) will perform its first observations. Preparations for building dishes, antennas, correlators and infrastructure are well underway. Concurrently, software for the processing of SKA observations…

Instrumentation and Methods for Astrophysics · Physics 2020-11-02 H. Spreeuw , S. Yatawatta , B. Van Werkhoven , F. Diblen

Transient radio phenomena and pulsars are one of six LOFAR Key Science Projects (KSPs). As part of the Transients KSP, the Pulsar Working Group (PWG) has been developing the LOFAR Pulsar Data Pipelines to both study known pulsars as well as…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 A. Alexov , J. W. T. Hessels , J. D. Mol , B. Stappers , J. van Leeuwen

We briefly consider some design aspects of aperture arrays for use in radio astronomy, particularly contrasting the performance of dense and sparse aperture arrays. Recent insights have emerged in the final design phase of LOFAR which…

Astrophysics · Physics 2007-05-23 Robert Braun , Wim van Cappellen

The Square Kilometre Array (SKA) project is an international effort to build the world's most sensitive radio telescope operating in the 50 MHz to 14 GHz frequency range. Construction of the SKA is divided into phases, with the first phase…

Instrumentation and Methods for Astrophysics · Physics 2018-08-15 Sascha Schediwy , David Gozzard

Next generation radio observatories such as the MWA, LWA, LOFAR, CARMA and SKA provide a number of challenges for interferometric data analysis. These challenges include heterogeneous arrays, direction-dependent instrumental gain, and…

Astrophysics · Physics 2015-05-13 Miguel F. Morales , Michael Matejek

The "Square Kilometre Array" (SKA) is a large international radio telescope project characterised, as suggested by its name, by a total collecting area of approximately one square kilometre, and consisting of several interferometric arrays…

Instrumentation and Methods for Astrophysics · Physics 2018-03-29 F. Acero , J. -T. Acquaviva , R. Adam , N. Aghanim , M. Allen , M. Alves , R. Ammanouil , R. Ansari , A. Araudo , E. Armengaud , B. Ascaso , E. Athanassoula , D. Aubert , S. Babak , A. Bacmann , A. Banday , K. Barriere , F. Bellossi , J. -P. Bernard , M. G. Bernardini , M. Béthermin , E. Blanc , L. Blanchet , J. Bobin , S. Boissier , C. Boisson , A. Boselli , A. Bosma , S. Bosse , S. Bottinelli , F. Boulanger , R. Boyer , A. Bracco , C. Briand , M. Bucher , V. Buat , L. Cambresy , M. Caillat , J. -M. Casandjian , E. Caux , S. Célestin , M. Cerruti , P. Charlot , E. Chassande-Mottin , S. Chaty , N. Christensen , L. Ciesla , N. Clerc , J. Cohen-Tanugi , I. Cognard , F. Combes , B. Comis , S. Corbel , B. Cordier , M. Coriat , R. Courtin , H. Courtois , B. Da Silva , E. Daddi , R. Dallier , E. Dartois , K. Demyk , J. -M. Denis , L. Denis , A. Djannati-Ataï , J. -F. Donati , M. Douspis , W. van Driel , M. N. El Korso , E. Falgarone , A. Fantina , T. Farges , A. Ferrari , C. Ferrari , K. Ferrière , R. Flamary , N. Gac , S. Gauffre , F. Genova , J. Girard , I. Grenier , J. -M. Griessmeier , P. Guillard , L. Guillemot , F. Gulminelli , A. Gusdorf , E. Habart , F. Hammer , P. Hennebelle , F. Herpin , O. Hervet , A. Hughes , O. Ilbert , M. Janvier , E. Josselin , A. Julier , C. Lachaud , G. Lagache , R. Lallement , S. Lambert , L. Lamy , M. Langer , P. Larzabal , G. Lavaux , T. Le Bertre , O. Le Fèvre , A. Le Tiec , B. Lefloch , M. Lehnert , M. Lemoine-Goumard , F. Levrier , M. Limousin , D. Lis , A. López-Sepulcre , J. Macias-Perez , C. Magneville , A. Marcowith , J. Margueron , G. Marquette , D. Marshall , L. Martin , D. Mary , S. Masson , S. Maurogordato , C. Mazauric , Y. Mellier , M. -A. Miville-Deschênes , L. Montier , F. Mottez , D. Mourard , N. Nesvadba , J. -F. Nezan , P. Noterdaeme , J. Novak , P. Ocvirk , M. Oertel , X. Olive , V. Ollier , N. Palanque-Delabrouille , M. Pandey-Pommier , Y. Pennec , M. Pérault , C. Peroux , P. Petit , J. Pétri , A. Petiteau , J. Pety , G. W. Pratt , M. Puech , B. Quertier , E. Raffin , S. Rakotozafy Harison , S. Rawson , M. Renaud , B. Revenu , C. Richard , J. Richard , F. Rincon , I. Ristorcelli , J. Rodriguez , M. Schultheis , C. Schimd , B. Semelin , H. Sol , J. -L. Starck , M. Tagger , C. Tasse , G. Theureau , S. Torchinsky , C. Vastel , S. D. Vergani , L. Verstraete , X. Vigouroux , N. Vilmer , J. -P. Vilotte , N. Webb , N. Ysard , P. Zarka

The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics. The project aims to construct and operate an array of nine Imaging Atmospheric Cherenkov Telescopes to study gamma-ray sources at…

Over the next few years the new radio telescopes, such as the Low Frequency Array (LOFAR) will greatly enhance our knowledge of the active history of the Universe. Large-area surveys with these new telescopes will no longer be dominated by…

Astrophysics · Physics 2007-05-23 Matt J. Jarvis

The AARTFAAC project aims to implement an All-Sky Monitor (ASM), using the Low Frequency Array (LOFAR) telescope. It will enable real-time, 24x7 monitoring for low frequency radio transients over most of the sky locally visible to the LOFAR…

Instrumentation and Methods for Astrophysics · Physics 2012-05-15 Peeyush Prasad , Stefan J. Wijnholds

The Square Kilometre Array (SKA) infrastructure will consist of two radio telescopes that will be the most sensitive telescopes on Earth. The SKA community will have to process and manage near exascale data, which will be a technical…

The Atacama Large Millimetre/submillimetre Array (ALMA) is the world's most advanced radio interferometric facility, producing science data with an average rate of about 1 TB per day. After a process of calibration, imaging and quality…

Astrophysics of Galaxies · Physics 2023-05-17 A. Wong , E. Hatziminaoglou , A. Borkar , G. Popping , I. Pérez-Fournon , F. Poidevin , F. Stoehr , H. Messias

The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics. This project aims to construct and operate an array of nine Imaging Atmospheric Cherenkov Telescopes to study gamma-ray sources…

The volume of radio-astronomical data is a considerable burden in the processing and storing of radio observations with high time and frequency resolutions and large bandwidths. Lossy compression of interferometric radio-astronomical data…

Instrumentation and Methods for Astrophysics · Physics 2016-11-09 A. R. Offringa

High energy astrophysics has made good use of combined high energy (X-ray, gamma-ray) and radio observations to uncover connections between outbursts, accretion, particle acceleration and kinetic feedback to the local ambient medium. In the…

Astrophysics · Physics 2008-10-07 Rob Fender

LOFAR is a groundbreaking low-frequency radio telescope currently nearing completion across northern europe. As a software telescope with no moving parts, enormous fields of view and multi-beaming, it has fantastic potential for the…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Rob Fender

The Square Kilometre Array Telescope Manager (SKA TM) will be responsible for assisting the SKA Operations and Observation Management, carrying out System diagnosis and collecting Monitoring & Control data from the SKA sub-systems and…

Instrumentation and Methods for Astrophysics · Physics 2016-12-07 Domingos Barbosa , Joao Paulo Barracaa , Bruno Carvalho , Dalmiro Maia , Yashwant Gupta , Swaminathan Natarajan , Gerhard Le Roux , Paul Swart

Aims: This paper discusses the spectral occupancy for performing radio astronomy with the Low-Frequency Array (LOFAR), with a focus on imaging observations. Methods: We have analysed the radio-frequency interference (RFI) situation in two…