output
19962026
most citedLOFAR: The LOw-Frequency ARray

2.7k citations

Showing 2014Show all

20 papers · 1 filter

astro-ph.IM2014★ 11 cited

A Cosmic Census of Radio Pulsars with the SKA

E. F. Keane, B. Bhattacharyya, M. Kramer +16

The Square Kilometre Array (SKA) will make ground breaking discoveries in pulsar science. In this chapter we outline the SKA surveys for new pulsars, as well as how we will perform…

astro-ph.SR2014★ 97 cited

Statistical Evidence for Contributions of Flares and Coronal Mass Ejections to Major Solar Energetic Particle Events

G. Trottet, S. Samwel, K. -L. Klein +2

Solar energetic particle (SEP) events are related to flares and coronal mass ejections (CMEs). This work is a new investigation of statistical relationships between SEP peak intens…

astro-ph.IM2014★ 38 cited

The LOFAR long baseline snapshot calibrator survey

J. Moldón, A. T. Deller, O. Wucknitz +82

Aims. An efficient means of locating calibrator sources for International LOFAR is developed and used to determine the average density of usable calibrator sources on the sky for s…

astro-ph.SR2014★ 122 cited

The Binary Companion of Young, Relativistic Pulsar J1906+0746

Joeri van Leeuwen, Laura Kasian, Ingrid H. Stairs +13

PSR J1906+0746 is a young pulsar in the relativistic binary with the second-shortest known orbital period, of 3.98 hours. We here present a timing study based on five years of obse…

astro-ph.IM2014★ 35 cited

New methods to constrain the radio transient rate: results from a survey of four fields with LOFAR

D. Carbone, A. J. van der Horst, R. A. M. J. Wijers +23

We report on the results of a search for radio transients between 115 and 190\,MHz with the LOw-Frequency ARray (LOFAR). Four fields have been monitored with cadences between 15 mi…

astro-ph.GA2014★ 34 cited

LOFAR low-band antenna observations of the 3C295 and Bootes fields: source counts and ultra-steep spectrum sources

R. J. van Weeren, W. L. Williams, C. Tasse +98

We present LOFAR Low Band observations of the Bootes and 3C295 fields. Our images made at 34, 46, and 62 MHz reach noise levels of 12, 8, and 5 mJy beam, making them the dee…

astro-ph.GA2014★ 73 cited

Pulsar-black hole binaries: prospects for new gravity tests with future radio telescopes

K. Liu, R. P. Eatough, N. Wex +1

The anticipated discovery of a pulsar in orbit with a black hole is expected to provide a unique laboratory for black hole physics and gravity. In this context, the next generation…

physics.plasm-ph2014★ 13 cited

Signatures of Secondary Collisionless Magnetic Reconnection Driven by Kink Instability of a Flux Rope

S. Markidis, G. Lapenta, G. L. Delzanno +5

The kinetic features of secondary magnetic reconnection in a single flux rope undergoing internal kink instability are studied by means of three-dimensional Particle-in-Cell simula…

astro-ph.SR2014★ 104 cited

The LOFAR Pilot Surveys for Pulsars and Fast Radio Transients

Thijs Coenen, Joeri van Leeuwen, Jason W. T. Hessels +87

We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio…

astro-ph.HE2014★ 46 cited

A 24-Hour Global Campaign To Assess Precision Timing of the Millisecond Pulsar J1713+0747

T. Dolch, M. T. Lam, J. M. Cordes +40

The radio millisecond pulsar J1713+0747 is regarded as one of the highest-precision clocks in the sky, and is regularly timed for the purpose of detecting gravitational waves. The…

astro-ph.HE2014★ 25 cited

Six Faint Gamma-ray Pulsars Seen with the Fermi Large Area Telescope -- Towards a Sample Blending into the Background

X. Hou, D. A. Smith, L. Guillemot +11

Context: GeV gamma-ray pulsations from over 140 pulsars have been characterized using the Fermi Large Area Telescope, enabling improved understanding of the emission regions within…

gr-qc2014★ 12 cited

A fully relativistic radial fall

Alessandro D. A. M. Spallicci, Patxi Ritter

Radial fall has historically played a momentous role. It is one of the most classical problems, the solutions of which represent the level of understanding of gravitation in a give…

astro-ph.GA2014★ 81 cited

Measuring pulse times of arrival from broadband pulsar observations

K. Liu, G. Desvignes, I. Cognard +7

In recent years, instrumentation enabling pulsar observations with unprecedentedly high fractional bandwidth has been under development which can be used to substantially improve t…

astro-ph.GA2014★ 82 cited

Initial LOFAR observations of Epoch of Reionization windows: II. Diffuse polarized emission in the ELAIS-N1 field

V. Jelic, A. G. de Bruyn, M. Mevius +106

This study aims to characterise the polarized foreground emission in the ELAIS-N1 field and to address its possible implications for the extraction of the cosmological 21-cm signal…

astro-ph.IM2014★ 109 cited

LOFAR Sparse Image Reconstruction

H. Garsden, J. N. Girard, J. L. Starck +77

Context. The LOw Frequency ARray (LOFAR) radio telescope is a giant digital phased array interferometer with multiple antennas distributed in Europe. It provides discrete sets of F…

astro-ph.EP2014★ 64 cited

Scientific rationale of Saturn's in situ exploration

O. Mousis, L. N. Fletcher, J. -P. Lebreton +47

Remote sensing observations meet some limitations when used to study the bulk atmospheric composition of the giant planets of our solar system. A remarkable example of the superior…

astro-ph.IM2014★ 54 cited

Model-based asymptotically optimal dispersion measure correction for pulsar timing

K. J. Lee, C. G. Bassa, G. H. Janssen +8

In order to reach the sensitivity required to detect gravitational waves, pulsar timing array experiments need to mitigate as much noise as possible in timing data. A dominant amou…

astro-ph.SR2014★ 74 cited

Synoptic solar radio observations as proxies for upper atmosphere modelling

Thierry Dudok de Wit, Sean Bruinsma, Kiyoto Shibasaki

The specification of the upper atmosphere strongly relies on solar proxies that can properly reproduce the solar energetic input in the UV. Whilst the microwave flux at 10.7 cm (al…

astro-ph.HE2014★ 28 cited

On the non-detection of gamma-rays from energetic millisecond pulsars -- dependence on viewing geometry

L. Guillemot, T. M. Tauris

Millisecond pulsars (MSPs) and normal non-recycled pulsars are both detected in -rays. However, it appears that a much larger fraction of known energetic and nearby MSPs are det…

astro-ph.HE2014★ 61 cited

The High Time Resolution Universe Pulsar Survey X: Discovery of four millisecond pulsars and updated timing solutions of a further 12

C. Ng, M. Bailes, S. D. Bates +22

We report on the discovery of four millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) pulsar survey being conducted at the Parkes 64-m radio telescope. All four…