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Related papers: Pathway to the Square Kilometre Array - The German…

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We know that magnetic fields are pervasive across all scales in the Universe and over all of cosmic time and yet our understanding of many of the properties of magnetic fields is still limited. We do not yet know when, where or how the…

We study the prospects to measure the cosmic radio dipole by means of continuum surveys with the Square Kilometre Array. Such a measurement will allow a critical test of the cosmological principle. It will test whether the cosmic rest frame…

Cosmology and Nongalactic Astrophysics · Physics 2018-10-16 Dominik J. Schwarz , Carlos A. P. Bengaly , Roy Maartens , Thilo M. Siewert

The Square Kilometre Array (SKA) will offer an unprecedented view onto the early Universe, using interferometric observations of the redshifted 21cm line. The 21cm line probes the thermal and ionization state of the cosmic gas, which is…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Andrei Mesinger , Andrea Ferrara , Bradley Greig , Ilian Iliev , Garrelt Mellema , Jonathan Pritchard , Mario G. Santos

The Square Kilometre Array will revolutionize pulsar studies with its wide field-of-view, wide-band observation and high sensitivity, increasing the number of observable pulsars by more than an order of magnitude. Pulsars are of interest…

We discuss the advantages which the next generation interferometer SKA (the Square Kilometer Array) will bring for Very Long Baseline Interferometry (VLBI) at centimeter wavelengths. With a sensitivity to micro-Jy level flux density, a…

Astrophysics · Physics 2007-05-23 T. P. Krichbaum , A. Witzel , J. A. Zensus

The Square Kilometre Array (SKA) Observatory is gearing up the formal construction of its two radio interferometers in Australia and South Africa after the end of design and pre-construction phases. Agile methodologies, the Cloud native…

In almost 30 years of operation, the Very Large Array (VLA) has proved to be a remarkably flexible and productive radio telescope. However, the basic capabilities of the VLA have changed little since it was designed. A major expansion…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 R. Perley , P. Napier , J. Jackson , B. Butler , B. Carlson , D. Fort , P. Dewdney , B. Clark , R. Hayward , S. Durand , M. Revnell , M. McKinnon

The era of the Square Kilometre Array is almost upon us, and pathfinder telescopes are already in operation. This brief review summarizes our current knowledge of extragalactic radio sources, accumulated through six decades of continuum…

Astrophysics of Galaxies · Physics 2017-06-22 Chris Simpson

The MeerKAT (64 x 13.5m dish radio interferometer) is South Africa's precursor instrument for the Square Kilometre Array (SKA), exploring dish design, instrumentation, and the characteristics of a Karoo desert site and is projected to be on…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 B. W. Holwerda , S. --L. Blyth , A. J. Baker , the LADUMA team

In order to precisely measure the cosmological parameters and answer the fundamental questions in cosmology, it is necessary to develop new, powerful cosmological probes, in addition to the proposed next-generation optical survey projects.…

Cosmology and Nongalactic Astrophysics · Physics 2020-04-15 Yidong Xu , Xin Zhang

A concept of an axi-symmetric dish as antenna reflector for the next generation radio telescope - the Square Kilometre Array (SKA) - is presented. The reflector is based on the use of novel thermoplastic composite material (reinforced with…

Instrumentation and Methods for Astrophysics · Physics 2011-08-30 M. V. Ivashina , R. Bakker , J. G. bij de Vaate , O. A. Iupikov , M. Arts , J. Dekker , A. van Ardenne

The very demanding requirements of the SKA-low instrument call for a challenging antenna design capable of delivering excellence performance in radiation patterns, impedance matching, polarization purity, cost, longevity, etc. This paper is…

Instrumentation and Methods for Astrophysics · Physics 2015-12-07 E. de Lera Acedo , N. Razavi-Ghods , N. Troop , N. Drought , A. J. Faulkner

We study the potential of the Square Kilometre Array in the first phase (SKA1) in detecting dark matter annihilation signals from dwarf spheroidals in the form of diffuse radio synchrotron. Taking the minimal supersymmetric standard model…

High Energy Physics - Phenomenology · Physics 2019-02-06 Arpan Kar , Sourav Mitra , Biswarup Mukhopadhyaya , Tirthankar Roy Choudhury

In order to meet its cutting-edge scientific objectives, the Square Kilometre Array (SKA) telescope requires high-precision frequency references to be distributed to each of its antennas. The frequency references are distributed via…

Instrumentation and Methods for Astrophysics · Physics 2017-06-20 David Gozzard , Sascha Schediwy , Richard Dodson , Maria Rioja , Mike Hill , Brett Lennon , Jock McFee , Peter Mirtschin , Jamie Stevens , Keith Grainge

Radio astronomy is transitioning to a big-data era due to the emerging generation of radio interferometric (RI) telescopes, such as the Square Kilometre Array (SKA), which will acquire massive volumes of data. In this article we review…

Instrumentation and Methods for Astrophysics · Physics 2020-04-15 Xiaohao Cai , Luke Pratley , Jason D. McEwen

The conference brought together expertise on a range of interference mitigation techniques from CSIRO, Australian and international industry and universities. Key goals were to: enhance the understanding of techniques and their…

Astrophysics · Physics 2007-05-23 J. F. Bell , R. D. Ekers , J. D. Bunton

Concerted effort is currently ongoing to open up the Epoch of Reionization (EoR) ($z\sim$15-6) for studies with IR and radio telescopes. Whereas IR detections have been made of sources (Lyman-$\alpha$ emitters, quasars and drop-outs) in…

With the high sensitivity and wide-field coverage of the Square Kilometre Array (SKA), large samples of explosive transients are expected to be discovered. Radio wavelengths, especially in commensal survey mode, are particularly well suited…

High Energy Astrophysical Phenomena · Physics 2016-11-23 Poonam Chandra , G. C. Anupama , K. G. Arun , Shabnam Iyyani , Kuntal Misra , D. Narasimha , Alak Ray , L. Resmi , Subhashis Roy , Firoza Sutaria