output
19932026
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations

Showing 2012 · astro-ph.IMShow all

6 papers · 2 filters

astro-ph.IM2012★ 65 cited

A wide-band, active antenna system for long wavelength radio astronomy

Brian C. Hicks, Nagini Paravastu-Dalal, Kenneth P. Stewart +9

We describe an "active" antenna system for HF/VHF (long wavelength) radio astronomy that has been successfully deployed 256-fold as the first station (LWA1) of the planned Long Wav…

astro-ph.IM2012★ 14 cited

Noise in the Cross-Power Spectrum of the Vela Pulsar

C. R. Gwinn, M. D. Johnson, J. E. Reynolds +12

We compare the noise in interferometric measurements of the Vela pulsar from ground- and space-based antennas with theoretical predictions. The noise depends on both the flux densi…

astro-ph.IM2012★ 107 cited

Fast Holographic Deconvolution: a new technique for precision radio interferometry

Ian Sullivan, Miguel Morales, Bryna Hazelton +48

We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling…

astro-ph.IM2012★ 70 cited

The EoR Sensitivity of the Murchison Widefield Array

A. P. Beardsley, B. J. Hazelton, M. F. Morales +48

Using the final 128 antenna locations of the Murchison Widefield Array (MWA), we calculate its sensitivity to the Epoch of Reionization (EoR) power spectrum of red- shifted 21 cm e…

astro-ph.IM2012★ 29 cited

A new layout optimization technique for interferometric arrays, applied to the MWA

A. P. Beardsley, B. J. Hazelton, M. F. Morales +46

Antenna layout is an important design consideration for radio interferometers because it determines the quality of the snapshot point spread function (PSF, or array beam). This is…

astro-ph.IM2012★ 4 cited

High Resolution Rapid Response observations of compact radio sources with the Ceduna Hobart Interferometer (CHI)

Jay M. Blanchard, James E. J. Lovell, Roopesh Ojha +3

Context. Frequent, simultaneous observations across the electromagnetic spectrum are essential to the study of a range of astrophysical phenomena including Active Galactic Nuclei.…