An absorption profile centred at 78 megahertz in the sky-averaged spectrum
After stars formed in the early Universe, their ultraviolet light is expected, eventually, to have
penetrated the primordial hydrogen gas and altered the excitation state of its 21-centimetre …
penetrated the primordial hydrogen gas and altered the excitation state of its 21-centimetre …
The phase II Murchison widefield array: design overview
We describe the motivation and design details of the 'Phase II'upgrade of the Murchison
Widefield Array radio telescope. The expansion doubles to 256 the number of antenna tiles …
Widefield Array radio telescope. The expansion doubles to 256 the number of antenna tiles …
A ground plane artifact that induces an absorption profile in averaged spectra from global 21 cm measurements, with possible application to EDGES
Most of the current Global 21 cm experiments include ground screens that help moderate
effects from the Earth. In this paper, we report on a possible systematic artifact within the …
effects from the Earth. In this paper, we report on a possible systematic artifact within the …
Results from EDGES High-band. I. Constraints on phenomenological models for the global 21 cm signal
RA Monsalve, AEE Rogers, JD Bowman… - The Astrophysical …, 2017 - iopscience.iop.org
Results from EDGES High-band. I. Constraints on Phenomenological Models for the Global 21
cm Signal - IOPscience This site uses cookies. By continuing to use this site you agree to our …
cm Signal - IOPscience This site uses cookies. By continuing to use this site you agree to our …
Antenna beam characterization for the global 21-cm experiment LEDA and its impact on signal model parameter reconstruction
Cosmic dawn, the onset of star formation in the early universe, can in principle be studied
via the 21-cm transition of neutral hydrogen, for which a sky-averaged absorption signal …
via the 21-cm transition of neutral hydrogen, for which a sky-averaged absorption signal …
Calibration and stokes imaging with full embedded element primary beam model for the murchison widefield array
M Sokolowski, T Colegate, AT Sutinjo… - Publications of the …, 2017 - cambridge.org
The Murchison Widefield Array (MWA), located in Western Australia, is one of the low-
frequency precursors of the international Square Kilometre Array (SKA) project. In addition to …
frequency precursors of the international Square Kilometre Array (SKA) project. In addition to …
Test-driven design of an active dual-polarized log-periodic antenna for the square kilometre array
P Bolli, L Mezzadrelli, J Monari, F Perini… - IEEE Open Journal …, 2020 - ieeexplore.ieee.org
An active dual-polarized Log-Periodic antenna has been designed to meet the requirements
of the low-frequency (50-350 MHz) radio telescope of the Square Kilometre Array (SKA). The …
of the low-frequency (50-350 MHz) radio telescope of the Square Kilometre Array (SKA). The …
Mapper of the IGM spin temperature: instrument overview
RA Monsalve, C Altamirano, V Bidula… - Monthly Notices of …, 2024 - academic.oup.com
The observation of the global 21 cm signal produced by neutral hydrogen gas in the
intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and Epoch of Reionization …
intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and Epoch of Reionization …
Improved measurement of the spectral index of the diffuse radio background between 90 and 190 MHz
We report absolutely calibrated measurements of diffuse radio emission between 90 and
190 MHz from the Experiment to Detect the Global EoR Signature (EDGES). EDGES …
190 MHz from the Experiment to Detect the Global EoR Signature (EDGES). EDGES …
The aperture array verification system 1: system overview and early commissioning results
The design and development process for the Square Kilometre Array (SKA) radio
telescope's Low Frequency Aperture Array component was progressed during the SKA pre …
telescope's Low Frequency Aperture Array component was progressed during the SKA pre …