ARIES-Institutional Digital Repository

LOFAR: The LOw-Frequency ARray

Show simple item record Haarlem, M. P. van, et al. Omar, A. 2015-06-09T05:05:01Z 2015-06-09T05:05:01Z 2013
dc.description.abstract LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from 10–240 MHz and provides a number of unique observing capabilities. Spreading out from a core located near the village of Exloo in the northeast of the Netherlands, a total of 40 LOFAR stations are nearing completion. A further five stations have been deployed throughout Germany, and one station has been built in each of France, Sweden, and the UK. Digital beam-forming techniques make the LOFAR system agile and allow for rapid repointing of the telescope as well as the potential for multiple simultaneous observations. With its dense core array and long interferometric baselines, LOFAR achieves unparalleled sensitivity and angular resolution in the low-frequency radio regime. The LOFAR facilities are jointly operated by the International LOFAR Telescope (ILT) foundation, as an observatory open to the global astronomical community. LOFAR is one of the first radio observatories to feature automated processing pipelines to deliver fully calibrated science products to its user community. LOFAR’s new capabilities, techniques and modus operandi make it an important pathfinder for the Square Kilometre Array (SKA). We give an overview of the LOFAR instrument, its major hardware and software components, and the core science objectives that have driven its design. In addition, we present a selection of new results from the commissioning phase of this new radio observatory. en_US
dc.language.iso en_US en_US
dc.publisher ESO en_US
dc.relation.ispartofseries aa556-A2
dc.subject Instrumentation: interferometers – radio continuum: general – radio lines: general – dark ages, reionization, first stars – telescopes en_US
dc.title LOFAR: The LOw-Frequency ARray en_US
dc.type Article en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record


Advanced Search


My Account