Murchison Widefield Array
(MWA)
(low frequency radio telescope)
The Murchison Widefield Array (MWA) is a radio telescope
in Western Australia, operating at 70-300 MHz, aimed at detecting the
hydrogen 21-cm line redshifted from the
epoch of reionization (much like LOFAR).
It is at the Murchison Radio Astronomy Observatory
(MRO) north of Perth.
An initial phase (MWA-128 or Phase I) was completed in 2012,
with a collecting area of 512 square meters in 128 tiles
(each tile consisting of a regular 4×4 grid of 16 dipole
antennas, in some descriptions the whole tile being termed an "antenna").
In 2017-2018, it was enlarged (Phase II) to 256 tiles,
offering baselines up to 5 km.
Original descriptions of the MWA were for 512 tiles, so further
expansion seems possible, but the correlator has been a
bottleneck and a recent effort has been the installation of one
capable of processing data from all the current 256 tiles.
(telescope,radio,array,ground,Australia,redshift)
Further reading:
https://en.wikipedia.org/wiki/Murchison_Widefield_Array
https://www.mwatelescope.org/
https://ui.adsabs.harvard.edu/abs/2009IEEEP..97.1497L/abstract
https://ui.adsabs.harvard.edu/abs/2010rfim.workE..16M/abstract
https://ui.adsabs.harvard.edu/abs/2018PASA...35...33W/abstract
https://ui.adsabs.harvard.edu/abs/2019PASA...36...50B/abstract
https://ui.adsabs.harvard.edu/abs/2023PASA...40...19M/abstract
https://arxiv.org/abs/2401.04346
WaveL | Freq | Photon Energy | | |
999mm | 300MHz | 1.3μeV | begin | Murchison Widefield Array |
4.3m | 70MHz | 290neV | end | Murchison Widefield Array |
|
Referenced by pages:
21-cm experiment
GLEAM
HERA
intensity mapping surveys
Low-frequency Array (LOFAR)
phased array
Index