activity
20042025
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 22.6k across the 100 of their papers we have counts for

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Showing 2013Show all

6 papers · 1 filter

astro-ph.GA2013★ 457 cited

A strong magnetic field around the supermassive black hole at the centre of the Galaxy

R. P. Eatough, H. Falcke, R. Karuppusamy +20

The centre of our Milky Way harbours the closest candidate for a supermassive black hole. The source is thought to be powered by radiatively inefficient accretion of gas from its e…

astro-ph.IM2013★ 161 cited

Calibrating High-Precision Faraday Rotation Measurements for LOFAR and the Next Generation of Low-Frequency Radio Telescopes

C. Sotomayor-Beltran, C. Sobey, J. W. T. Hessels +77

Faraday rotation measurements using the current and next generation of low-frequency radio telescopes will provide a powerful probe of astronomical magnetic fields. However, achiev…

astro-ph.SR2013★ 32 cited

Differential Frequency-dependent Delay from the Pulsar Magnetosphere

T. E. Hassall, B. W. Stappers, P. Weltevrede +60

Some radio pulsars show clear drifting subpulses, in which subpulses are seen to drift in pulse longitude in a systematic pattern. Here we examine how the drifting subpulses of PSR…

astro-ph.HE2013★ 134 cited

Synchronous X-ray and Radio Mode Switches: a Rapid Global Transformation of the Pulsar Magnetosphere

W. Hermsen, J. W. T. Hessels, L. Kuiper +8

Pulsars emit low-frequency radio waves through to high-energy gamma-rays that are generated anywhere from the surface out to the edges of the magnetosphere. Detecting correlated mo…

astro-ph.IM2013★ 11 cited

Pathway to the Square Kilometre Array - The German White Paper -

F. Aharonian, T. G. Arshakian, B. Allen +69

The Square Kilometre Array (SKA) is the most ambitious radio telescope ever planned. With a collecting area of about a square kilometre, the SKA will be far superior in sensitivity…

astro-ph.GA2013★ 120 cited

Pulsar Spin-Velocity Alignment: Kinematic Ages, Birth Periods and Braking Indices

Aristeidis Noutsos, Dominic Schnitzeler, Evan Keane +2

This paper presents a detailed investigation of the dependence of pulsar spin-velocity alignment, which has been observed for a sample of 58 pulsars, on pulsar age. At first, our s…