activity
20052023
most citedM87 at metre wavelengths: the LOFAR picture

120 citations · 370 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.IM2023★ 6 cited

Apertif 1.4 GHz continuum observations of the Boötes field and their combined view with LOFAR

A. M. Kutkin, T. A. Oosterloo, R. Morganti +17

We present a new image of a 26.5 square degree region in the Boötes constellation obtained at 1.4 GHz using the Aperture Tile in Focus (Apertif) system on the Westerbork Synthesis…

astro-ph.IM2022★ 14 cited

Continuum source catalog for the first APERTIF data release

A. M. Kutkin, T. A. Oosterloo, R. Morganti +25

The first data release of Apertif survey contains 3074 radio continuum images covering a thousand square degrees of the sky. The observations were performed during August 2019 to J…

astro-ph.IM2022★ 42 cited

First release of Apertif imaging survey data

Elizabeth A. K. Adams, B. Adebahr, W. J. G. de Blok +56

(Abridged) Apertif is a phased-array feed system for WSRT, providing forty instantaneous beams over 300 MHz of bandwidth. A dedicated survey program started on 1 July 2019, with th…

astro-ph.IM2022★ 6 cited

Characterising the Apertif primary beam response

H. Dénes, K. M. Hess, E. A. K. Adams +27

Context. Phased Array Feeds (PAFs) are multi element receivers in the focal plane of a telescope that make it possible to form simultaneously multiple beams on the sky by combining…

astro-ph.GA2022★ 12 cited

The Apertif science verification campaign - Characteristics of polarised radio sources

B. Adebahr, A. Berger, E. A. K. Adams +24

We analyse five early science datasets from the APERture Tile in Focus (Apertif) phased array feed system to verify the polarisation capabilities of Apertif in view of future large…

astro-ph.HE2022★ 32 cited

A fast radio burst with sub-millisecond quasi-periodic structure

Inés Pastor-Marazuela, Joeri van Leeuwen, Anna Bilous +31

Fast radio bursts (FRBs) are extragalactic radio transients of extraordinary luminosity. Studying the diverse temporal and spectral behaviour recently observed in a number of FRBs…

astro-ph.IM2021★ 13 cited

Apercal -- The Apertif Calibration Pipeline

B. Adebahr, R. Schulz, T. J. Dijkema +33

Apertif (APERture Tile In Focus) is one of the Square Kilometre Array (SKA) pathfinder facilities. The Apertif project is an upgrade to the 50-year-old Westerbork Synthesis Radio T…

astro-ph.IM2021★ 1 cited

Apertif, Phased Array Feeds for the Westerbork Synthesis Radio Telescope

W. A. van Cappellen, T. A. Oosterloo, M. A. W. Verheijen +87

We describe the APERture Tile In Focus (Apertif) system, a phased array feed (PAF) upgrade of the Westerbork Synthesis Radio Telescope which has transformed this telescope into a h…

astro-ph.IM2016★ 17 cited

MANTIS: The Mid-Frequency Aperture Array Transient and Intensity-Mapping System

W. A. van Cappellen, M. Santos, J. P. Macquart +14

The objective of this paper is to present the main characteristics of a wide-field MFAA precursor that we envisage to be built at the SKA site in South Africa. Known as MANTIS (the…

astro-ph.IM2016★ 7 cited

SKA Aperture Array Mid Frequency Science Requirements

S. A. Torchinsky, J. W. Broderick, A. Gunst +2

This document describes the top level requirements for the SKA-AAMID telescope as determined by the SKA key science projects. These include parameters such as operating frequency r…

astro-ph.GA2012★ 120 cited

M87 at metre wavelengths: the LOFAR picture

F. de Gasperin, E. Orru', M. Murgia +92

M87 is a giant elliptical galaxy located in the centre of the Virgo cluster, which harbours a supermassive black hole of mass 6.4x10^9 M_sun, whose activity is responsible for the…

astro-ph.CO2012★ 76 cited

First LOFAR observations at very low frequencies of cluster-scale non-thermal emission: the case of Abell 2256

R. J. van Weeren, H. J. A. Rottgering, D. A. Rafferty +79

Abell 2256 is one of the best known examples of a galaxy cluster hosting large-scale diffuse radio emission that is unrelated to individual galaxies. It contains both a giant radio…

astro-ph.IM2011★ 17 cited

Optimized Trigger for Ultra-High-Energy Cosmic-Ray and Neutrino Observations with the Low Frequency Radio Array

K. Singh, M. Mevius, O. Scholten +100

When an ultra-high energy neutrino or cosmic ray strikes the Lunar surface a radio-frequency pulse is emitted. We plan to use the LOFAR radio telescope to detect these pulses. In t…

astro-ph.IM2010

The latest on Apertif

Tom Oosterloo, Marc Verheijen, Wim van Cappellen

We describe a Phased Array Feed (PAF) system, called Apertif, which will be installed in the Westerbork Synthesis Radio Telescope (WSRT). The aim of Apertif is, at frequencies from…

astro-ph.IM2009★ 6 cited

Apertif - the focal-plane array system for the WSRT

Tom Oosterloo, Marc Verheijen, Wim van Cappellen +3

We describe a focal plane array (FPA) system, called Apertif, that is being developed for the Westerbork Synthesis Radio Telescope (WSRT). The aim of Apertif is to increase the ins…

astro-ph2005★ 1 cited

Fluctuations in the EAS radio signal derived with improved Monte Carlo simulations based on CORSIKA

Tim Huege

Cosmic ray air showers are known to emit pulsed radio emission which can be understood as coherent geosynchrotron radiation arising from the deflection of electron-positron pairs i…