activity
20092019
most citedRevealing Hanny's Voorwerp: radio observations of IC 2497

60 citations · 190 across the 12 of their papers we have counts for

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Showing astro-ph.COShow all

7 papers · 1 filter

astro-ph.CO2013★ 14 cited

Multi-Epoch Very Long Baseline Interferometric Observations of the Nuclear Starburst Region of NGC 253: Improved modelling of the supernova and star-formation rates

Hayden Rampadarath, John S. Morgan, Emil Lenc +1

The results of multi-epoch observations of the southern starburst galaxy, NGC 253, with the Australian Long Baseline Array (LBA) at 2.3 GHz are presented. As with previous radio in…

astro-ph.CO2011★ 33 cited

New lensed quasars from the MUSCLES survey

Neal Jackson, Hayden Rampadarath, Eran O. Ofek +2

Gravitational lens systems containing lensed quasars are important as cosmological probes, as diagnostics of structural properties of the lensing galaxies and as tools to study the…

astro-ph.CO2011★ 1 cited

Hanny's Voorwerp: a nuclear starburst in IC2497

M. A. Garrett, H. Rampadarath, G. I. G. Jozsa +7

We present high and intermediate resolution radio observations of the central region in the spiral galaxy IC 2497, performed using the European VLBI Network (EVN) at 18 cm, and the…

astro-ph.CO2009

Is an obscured AGN at the centre of the disk galaxy IC 2497 responsible for Hanny's Voorwerp?

H. Rampadarath, M. A. Garrett, T. Muxlow +3

We present the results of VLBI and MERLIN observations of the massive disk galaxy IC 2497. Optical observations of IC 2497 revealed the existence of a giant emission nebula "Hanny'…

astro-ph.CO2009★ 60 cited

Revealing Hanny's Voorwerp: radio observations of IC 2497

G. I. G. Jozsa, M. A. Garrett, T. A. Oosterloo +7

We present multi-wavelength radio observations in the direction of the spiral galaxy IC 2497 and the neighbouring emission nebula known as "Hanny's Voorwerp". Our WSRT continuum ob…

astro-ph.CO2009★ 7 cited

Observations of 44 extragalactic radio sources with the VLBA at 92cm: A List of Potential Calibrators and Targets for LOFAR and RadioAstron

H. Rampadarath, M. A. Garrett, A. Polatidis

Aims. We have analysed VLBA 92cm archive data of 44 extragalactic sources in order to identify early targets and potential calibrator sources for the LOFAR radio telescope and the…

astro-ph.CO2009★ 3 cited

Lofar, E-Lofar and Low-Frequency Vlbi

M. A. Garrett, H. Rampadarath, E. Lenc +1

The Low Frequency Array (LOFAR) is a new generation of electronic radio telescope based on aperture array technology. The telescope is being developed by ASTRON, and currently bein…