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Showing 2012 · astro-ph.IMShow all
3 papers · 2 filters
astro-ph.IM2012★ 91 cited
The LOFAR radio environment
A. R. Offringa, A. G. de Bruyn, S. Zaroubi +93
Aims: This paper discusses the spectral occupancy for performing radio astronomy with the Low-Frequency Array (LOFAR), with a focus on imaging observations. Methods: We have analys…
astro-ph.IM2012★ 5 cited
A catalog of near-IR sources found unresolved with milliarcsecond resolution
A. Richichi, O. Fors, F. Cusano +1
Calibration is one of the long-standing problems in optical interferometric measurements, particularly with long baselines which demand stars with angular sizes on the milliarcseco…
astro-ph.IM2012★ 16 cited
Observing faint targets with MIDI at the VLTI -- The MIDI AGN Large Programme experience
Leonard Burtscher, Konrad R. W. Tristram, Walter J. Jaffe +1
In order to put MIDI/VLTI observations of AGNs on a significant statistical basis, the number of objects had to be increased dramatically from the few prominent bright cases to ove…