84 citations · 216 across the 25 of their papers we have counts for
13 papers · 1 filter
The MegaWave Radio Surveyor
T. Joseph W. Lazio, Evgenya Shkolnik, James Aguirre +40
Several Decadal-level questions in astrophysics, exoplanets, astrobiology, and cosmology can be addressed only at low radio frequencies inaccessible from Earth. The MegaWave Radio…
All-Sky Ultra-Narrowband Spectral Imaging with the OVRO-LWA: Technosignature Constraints and Axion-Like Particle Prospects
Nikita Kosogorov, Gregg Hallinan, Greg Hellbourg +46
We present an imaging-domain search for technosignatures at decametric wavelengths with the OVRO-LWA, targeting ultra-narrowband continuous-wave signals between 50 and 86 MHz. We i…
The EDGES Analysis Pipeline: Description and Validation
Steven G. Murray, Nivedita Mahesh, Akshatha K. Vydula +7
The sky-averaged redshifted 21-cm signal from Cosmic Dawn is expected to provide a unique view of the first compact objects. However, its measurement remains daunting. Difficulties…
A Commensal Radio-Only Cosmic Ray Detector at the Owens Valley Radio Observatory Long Wavelength Array
Kathryn A. Plant, Andrew Romero-Wolf, Gregg Hallinan +46
The brief (10 nanoseconds) transient radio emission from cosmic ray air showers carries key information about the energy and mass composition of high energy cosmic rays, but anthro…
The FarView Low Frequency Radio Array on the Moon's Far Side: Science and Array Architecture
Jack O. Burns, Judd Bowman, Tzu-Ching Chang +8
FarView is a proposed low frequency radio interferometer for deployment on the lunar far side, enabled by the Moon's radio quiet environment. Operating over 1-50 MHz inaccessible f…
Polarisation Performance of Offset Phase Antennas: A Study for FARSIDE
Nivedita Mahesh, Judd D Bowman, Bharat Gehlot +1
Several radio telescopes have been planned or proposed to be deployed on the Lunar farside in the coming years. These will observe the unexplored ultra-long wavelengths of the elec…
Studying Exoplanets in the Radio from the Moon
Jake D. Turner, Jack O. Burns, David Rapetti +12
Exoplanets with and without a magnetic field are predicted to form, behave, and evolve very differently. Therefore, there is great need to directly constrain these fields to holist…
EDGES-3: Instrument Design and Commissioning
Rigel C. Cappallo, Alan E. E. Rogers, Colin J. Lonsdale +10
EDGES-3 is the third iteration of the EDGES experiment, designed to measure the predicted global absorption feature in the radio spectrum produced by neutral hydrogen gas at cosmic…
FarView: An In-Situ Manufactured Lunar Far Side Radio Array Concept for 21-cm Dark Ages Cosmology
Ronald S. Polidan, Jack O. Burns, Alex Ignatiev +7
FarView is an early-stage concept for a large, low-frequency radio observatory, manufactured in-situ on the lunar far side using metals extracted from the lunar regolith. It consis…
Power spectrum analysis of ionospheric fluctuations with the Murchison Widefield Array
Shyeh Tjing Loi, Cathryn M. Trott, Tara Murphy +45
Low-frequency, wide field-of-view (FoV) radio telescopes such as the Murchison Widefield Array (MWA) enable the ionosphere to be sampled at high spatial completeness. We present th…
Measuring Phased-Array Antenna Beampatterns with High Dynamic Range for the Murchison Widefield Array using 137 MHz ORBCOMM Satellites
A. R. Neben, R. F. Bradley, J. N. Hewitt +26
Detection of the fluctuations in 21 cm line emission from neutral hydrogen during the Epoch of Reionization in thousand hour integrations poses stringent requirements on calibratio…
Observing the Sun with the Murchison Widefield Array
D. Oberoi, R. Sharma, S. Bhatnagar +42
The Sun has remained a difficult source to image for radio telescopes, especially at the low radio frequencies. Its morphologically complex emission features span a large range of…
Absolute calibration of a wideband antenna and spectrometer for sky noise spectral index measurements
Alan E. E. Rogers, Judd D. Bowman
A new method of absolute calibration of sky noise temperature using a three-position switched spectrometer, measurements of antenna and low noise amplifier impedance with a vector…