scispace - formally typeset
Open AccessJournal ArticleDOI

Science with the Murchison Widefield Array

Judd D. Bowman, +60 more
- 28 Oct 2013 - 
- Vol. 30, Iss: 1
Reads0
Chats0
TLDR
The Murchison Widefield Array (MWA) as discussed by the authors is the first telescope in the southern hemisphere designed specifically to explore the low-frequency astronomical sky between 80 and 300 MHz with arcminute angular resolution and high survey efficiency.
Abstract
Significant new opportunities for astrophysics and cosmology have been identified at low radio frequencies. The Murchison Widefield Array is the first telescope in the southern hemisphere designed specifically to explore the low-frequency astronomical sky between 80 and 300 MHz with arcminute angular resolution and high survey efficiency. The telescope will enable new advances along four key science themes, including searching for redshifted 21-cm emission from the EoR in the early Universe; Galactic and extragalactic all-sky southern hemisphere surveys; time-domain astrophysics; and solar, heliospheric, and ionospheric science and space weather. The Murchison Widefield Array is located in Western Australia at the site of the planned Square Kilometre Array (SKA) low-band telescope and is the only low-frequency SKA precursor facility. In this paper, we review the performance properties of the Murchison Widefield Array and describe its primary scientific objectives.

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

LOFAR: The LOw-Frequency ARray

M. P. van Haarlem, +222 more
TL;DR: In dit artikel zullen the authors LOFAR beschrijven: van de astronomische mogelijkheden met de nieuwe telescoop tot aan een nadere technische beshrijving of het instrument.
Journal ArticleDOI

Cosmic Reionization and Early Star-forming Galaxies: a Joint Analysis of new Constraints From Planck and the Hubble Space Telescope

TL;DR: In this paper, the authors discuss new constraints on the epoch of cosmic reionization and test the assumption that most of the ionizing photons responsible arose from high-redshift star-forming galaxies.
Journal ArticleDOI

wsclean: an implementation of a fast, generic wide-field imager for radio astronomy

A. R. Offringa, +64 more
TL;DR: In this article, the authors present a wide-field interferometric imager that uses the w-stacking algorithm and can make use of the W-snapshot algorithm, which is an order of magnitude faster than w-projection, as well as being capable of full-sky imaging at full resolution with correct polarization correction.
Journal ArticleDOI

Hydrogen epoch of reionization array (HERA)

TL;DR: DeBoer, David R; Parsons, Aaron R; Aguirre, James E; Alexander, Paul; Ali, Zaki S; Beardsley, Adam P; Bernardi, Gianni; Bowman, Judd D; Bradley, Richard F; Carilli, Chris L; Cheng, Carina; Acedo, Eloy de Lera; Dillon, Joshua S; Ewall-Wice, Aaron; Fadana, Gcobisa; Fagnoni, Nicolas; Fritz, Randall; Furlanetto, Steve R; Glenden
Journal ArticleDOI

GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey - I. A low-frequency extragalactic catalogue

TL;DR: Using the Murchison Widefield Array (MWA), the low-frequency Square Kilometre Array precursor located in Western Australia, the authors have completed the GaLactic and Extragalactic All-sky MWA (GLEAM) survey.
References
More filters
Journal ArticleDOI

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

TL;DR: In this paper, the authors show that the tensor-to-scalar ratio r 1 is disfavored regardless of r. They provide a set of "WMAP distance priors, to test a variety of dark energy models.
Journal ArticleDOI

The NRAO VLA Sky Survey

TL;DR: The NRAO VLA Sky Survey (NVSS) covers the sky north of J2000 at 1.4 GHz as discussed by the authors, including a set of 2326 4?? 4? continuum cubes with three planes containing Stokes I, Q, and U images plus a catalog of almost 2? 106 discrete sources stronger than S 2.5 mJy.
Related Papers (5)

The Murchison widefield array: The square kilometre array precursor at low radio frequencies

LOFAR: The LOw-Frequency ARray

M. P. van Haarlem, +222 more