相关论文: The Murchison Widefield Array Correlator

First Spectroscopic Imaging Observations of the Sun at Low Radio Frequencies with the Murchison Widefield Array Prototype

We present the first spectroscopic images of solar radio transients from the prototype for the Murchison Widefield Array (MWA), observed on 2010 March 27. Our observations span the instantaneous frequency band 170.9-201.6 MHz. Though our…

太阳与恒星天体物理 · 物理学 2015-05-20 Divya Oberoi , Lynn D. Matthews , Iver H. Cairns , David Emrich , Vasili Lobzin , Colin J. Lonsdale , Edward H. Morgan , T. Prabu , Harish Vedantham , Randall B. Wayth , Andrew Williams , Christopher Williams , Stephen M. White , G. Allen , Wayne Arcus , David Barnes , Leonid Benkevitch , Gianni Bernardi , Judd D. Bowman , Frank H. Briggs , John D. Bunton , Steve Burns , Roger C. Cappallo , M. A. Clark , Brian E. Corey , M. Dawson , David DeBoer , A. De Gans , Ludi deSouza , Mark Derome , R. G. Edgar , T. Elton , Robert Goeke , M. R. Gopalakrishna , Lincoln J. Greenhill , Bryna Hazelton , David Herne , Jacqueline N. Hewitt , P. A. Kamini , David L. Kaplan , Justin C. Kasper , Rachel Kennedy , Barton B. Kincaid , Jonathan Kocz , R. Koeing , Errol Kowald , Mervyn J. Lynch , S. Madhavi , Stephen R. McWhirter , Daniel A. Mitchell , Miguel F. Morales , A. Ng , Stephen M. Ord , Joseph Pathikulangara , Alan E. E. Rogers , Anish Roshi , Joseph E. Salah , Robert J. Sault , Antony Schinckel , N. Udaya Shankar , K. S. Srivani , Jamie Stevens , Ravi Subrahmanyan , D. Thakkar , Steven J. Tingay , J. Tuthill , Annino Vaccarella , Mark Waterson , Rachel L. Webster , Alan R. Whitney

A candidate field for deep imaging of the Epoch of Reionization observed with MWA

Deep imaging of structures from the Cosmic Dawn (CD) and the Epoch of Reionization (EoR) in five targeted fields is one of the highest priority scientific objectives for the Square Kilometre Array (SKA). Selecting 'quiet' fields, which…

天体物理仪器与方法 · 物理学 2025-07-14 Xueying Zhang , Qian Zheng , Linhui Wu , Quan Guo , Stefan W. Duchesne , Mengfan He , Huanyuan Shan , Xiang-ping Wu , Melanie Johnston-Hollitt , Feiyu Zhao , Qingyuan Ma

Interplanetary Scintillation with the Murchison Widefield Array V: An All-sky Survey of Compact Sources using a Modern Low-frequency Radio Telescope

We describe the parameters of a low-frequency all-sky survey of compact radio sources using Interplanetary Scintillation (IPS), undertaken with the Murchison Widefield Array (MWA). While this survey gives important complementary information…

星系天体物理 · 物理学 2019-02-08 J. S. Morgan , J-P. Macquart , R. Chhetri , R. D. Ekers , S. J. Tingay , E. M. Sadler

A long period transient search method for the Murchison Widefield Array

We present an automated search method for radio transients on the minute timescale focused on the emerging long period transients (LPTs) in image-plane radio data. The method is tuned for use with the Murchison Widefield Array (MWA) and…

天体物理仪器与方法 · 物理学 2025-10-07 Csanád Horváth , Natasha Hurley-Walker , Samuel J. McSweeney , Timothy J. Galvin , John Morgan

An Opportunistic Search for ExtraTerrestrial Intelligence (SETI) with the Murchison Widefield Array

A spectral line image cube generated from 115 minutes of MWA data that covers a field of view of 400 sq. deg. around the Galactic Centre is used to perform the first Search for ExtraTerrestrial Intelligence (SETI) with the Murchison…

地球与行星天体物理 · 物理学 2016-08-17 S. J. Tingay , C. Tremblay , A. Walsh , R. Urquhart

In situ measurement of MWA primary beam variation using ORBCOMM

We provide the first in situ measurements of antenna element (tile) beam shapes of the Murchison Widefield Array (MWA), a low radio-frequency interferometer and an SKA precursor. Most current MWA processing pipelines use an assumed beam…

天体物理仪器与方法 · 物理学 2019-02-20 J. L. B. Line , B. McKinley , J. Rasti , M. Bhardwaj , R. B. Wayth , R. L. Webster , D. Ung , D. Emrich , L. Horsley , A. Beardsley , B. Crosse , T. M. O. Franzen , B. M. Gaensler , M. Johnston-Hollitt , D. L. Kaplan , D. Kenney , M. F. Morales , D. Pallot , K. Steele , S. J. Tingay , C. M. Trott , M. Walker , A. Williams , C. Wu

Power spectrum analysis of ionospheric fluctuations with the Murchison Widefield Array

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 the results of the first power spectrum analysis of…

天体物理仪器与方法 · 物理学 2015-09-02 Shyeh Tjing Loi , Cathryn M. Trott , Tara Murphy , Iver H. Cairns , Martin Bell , Natasha Hurley-Walker , John Morgan , Emil Lenc , A. R. Offringa , L. Feng , P. J. Hancock , D. L. Kaplan , N. Kudryavtseva , G. Bernardi , J. D. Bowman , F. Briggs , R. J. Cappallo , B. E. Corey , A. A. Deshpande , D. Emrich , B. M. Gaensler , R. Goeke , L. J. Greenhill , B. J. Hazelton , M. Johnston-Hollitt , J. C. Kasper , E. Kratzenberg , C. J. Lonsdale , M. J. Lynch , S. R. McWhirter , D. A. Mitchell , M. F. Morales , E. Morgan , D. Oberoi , S. M. Ord , T. Prabu , A. E. E. Rogers , A. Roshi , N. Udaya Shankar , K. S. Srivani , R. Subrahmanyan , S. J. Tingay , M. Waterson , R. B. Wayth , R. L. Webster , A. R. Whitney , A. Williams , C. L. Williams

Low frequency observations of linearly polarized structures in the interstellar medium near the south Galactic pole

We present deep polarimetric observations at 154 MHz with the Murchison Widefield Array (MWA), covering 625 deg^2 centered on RA=0 h, Dec=-27 deg. The sensitivity available in our deep observations allows an in-band, frequency-dependent…

星系天体物理 · 物理学 2016-10-19 Emil Lenc , B. M. Gaensler , X. H. Sun , E. M. Sadler , A. G. Willis , N. Barry , A. P. Beardsley , M. E. Bell , G. Bernardi , J. D. Bowman , F. Briggs , J. R. Callingham , R. J. Cappallo , P. Carroll , B. E. Corey , A. de Oliveira-Costa , A. A. Deshpande , J. S. Dillon , K. S. Dwarkanath , D. Emrich , A. Ewall-Wice , L. Feng , B. -Q. For , R. Goeke , L. J. Greenhill , P. Hancock , B. J. Hazelton , J. N. Hewitt , L. Hindson , N. Hurley-Walker , M. Johnston-Hollitt , D. C. Jacobs , A. D. Kapinska , D. L. Kaplan , J. C. Kasper , H. -S. Kim , E. Kratzenberg , J. Line , A. Loeb , C. J. Lonsdale , M. J. Lynch , B. McKinley , S. R. McWhirter , D. A. Mitchell , M. F. Morales , E. Morgan , J. Morgan , T. Murphy , A. R. Neben , D. Oberoi , A. R. Offringa , S. M. Ord , S. Paul , B. Pindor , J. C. Pober , T. Prabu , P. Procopio , J. Riding , A. E. E. Rogers , A. Roshi , N. Udaya Shankar , S. K. Sethi , K. S. Srivani , L. Staveley-Smith , R. Subrahmanyan , I. S. Sullivan , M. Tegmark , Nithyanandan Thyagarajan , S. J. Tingay , C. Trott , M. Waterson , R. B. Wayth , R. L. Webster , A. R. Whitney , A. Williams , C. L. Williams , C. Wu , J. S. B. Wyithe , Q. Zheng

Solar Imaging using Low Frequency Arrays

Low frequency imaging radio arrays such as MWA, LWA and LOFAR have been recently commissioned, and significantly more advanced and flexible arrays are planned for the near term. These powerful instruments offer new opportunities for direct…

天体物理仪器与方法 · 物理学 2018-02-07 C. Lonsdale , L. Benkevitch , I. Cairns , M. Crowley , P. Erickson , M. Knapp , K. Kozarev , F. Lind , P. McCauley , J. Morgan , D. Oberoi

Prospects for the Detection of Fast Radio Bursts with the Murchison Widefield Array

Fast Radio Bursts (FRBs) are short timescale (<<1 s) astrophysical radio signals, presumed to be a signature of cataclysmic events of extragalactic origin. The discovery of six high-redshift events at ~1400 MHz from the Parkes radio…

天体物理仪器与方法 · 物理学 2015-06-17 Cathryn M. Trott , Steven J. Tingay , Randall B. Wayth

Low frequency spectral energy distributions of radio pulsars detected with the Murchison Widefield Array

We present low-frequency spectral energy distributions of 60 known radio pulsars observed with the Murchison Widefield Array (MWA) telescope. We searched the GaLactic and Extragalactic All-sky MWA (GLEAM) survey images for 200-MHz continuum…

高能天体物理现象 · 物理学 2017-05-03 Tara Murphy , David L. Kaplan , Martin E. Bell , J. R. Callingham , Steve Croft , Simon Johnston , Dougal Dobie , Andrew Zic , Jake Hughes , Christene Lynch , Paul Hancock , Natasha Hurley-Walker , Emil Lenc , K. S. Dwarakanath , B. -Q. For , B. M. Gaensler , L. Hindson , M. Johnston-Hollitt , A. D. Kapinska , B. McKinley , J. Morgan , A. R. Offringa , P. Procopio , L. Staveley-Smith , R. Wayth , C. Wu , Q. Zheng

A search for Extraterrestrial Intelligence (SETI) toward the Galactic Anticenter with the Murchison Widefield Array

Following from the results of the first systematic modern low frequency Search for Extraterrestrial Intelligence (SETI) using the Murchison Widefield Array (MWA), which was directed toward a Galactic Center field, we report a second survey…

科普物理 · 物理学 2018-04-04 S. J. Tingay , C. D. Tremblay , S. Croft

Science With The Australian Square Kilometre Array Pathfinder

The future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive than any existing radio facility. Most of the key science…

天体物理学 · 物理学 2009-11-13 Simon Johnston

Murchison Widefield Array detection of steep-spectrum, diffuse, non-thermal radio emission within Abell 1127

Diffuse, non-thermal emission in galaxy clusters is increasingly being detected in low-frequency radio surveys and images. We present a new diffuse, steep-spectrum, non-thermal radio source within the cluster Abell 1127 found in survey data…

星系天体物理 · 物理学 2020-07-31 Stefan W. Duchesne , Melanie Johnston-Hollitt , Zhenghao Zhu , Randall B. Wayth , Jack L. B. Line

Science with the Australian Square Kilometre Array Pathfinder (ASKAP)

The future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries that will be 50 times more sensitive than any existing radio facility. Most of the key science…

宇宙学与河外天体物理 · 物理学 2009-03-25 Simon Johnston , Ilana J. Feain , Neeraj Gupta

Murchison Widefield Array Observations of Anomalous Variability: A Serendipitous Night-time Detection of Interplanetary Scintillation

We present observations of high-amplitude rapid (2 s) variability toward two bright, compact extragalactic radio sources out of several hundred of the brightest radio sources in one of the 30x30 deg MWA Epoch of Reionization fields using…

天体物理仪器与方法 · 物理学 2015-08-19 D. L. Kaplan , S. J. Tingay , P. K. Manoharan , J. -P. Macquart , P. Hancock , J. Morgan , D. A. Mitchell , R. D. Ekers , R. B. Wayth , C. Trott , T. Murphy , D. Oberoi , I. H. Cairns , L. Feng , N. Kudryavtseva , G. Bernardi , J. D. Bowman , F. Briggs , R. J. Cappallo , A. A. Deshpande , B. M. Gaensler , L. J. Greenhill , N. Hurley-Walker , B. J. Hazelton , M. Johnston-Hollitt , C. J. Lonsdale , S. R. McWhirter , E. Morgan , S. M. Ord , T. Prabu , N. Udaya Shankar , K. S. Srivani , R. Subrahmanyan , R. L. Webster , A. Williams , C. L. Williams

The First Station of the Long Wavelength Array

The Long Wavelength Array (LWA) will be a new multi-purpose radio telescope operating in the frequency range 10-88 MHz. Upon completion, LWA will consist of 53 phased array "stations" distributed over a region about 400 km in diameter in…

天体物理仪器与方法 · 物理学 2010-09-06 Patricia Henning , Steven W. Ellingson , Gregory B. Taylor , Joseph Craig , Ylva Pihlström , Lee J Rickard , Tracy E. Clarke , Namir E. Kassim , Aaron Cohen

Interplanetary Scintillation with the Murchison Widefield Array I: A sub-arcsecond Survey over 900 square degrees at 79 and 158 MHz

We present the first dedicated observations of Interplanetary Scintillation (IPS) with the Murchison Widefield Array (MWA). We have developed a synthesis imaging technique, tailored to the properties of modern "large-N" low-frequency radio…

天体物理仪器与方法 · 物理学 2017-09-12 J . S. Morgan , J-P. Macquart , R. Ekers , R. Chhetri , M. Tokumaru , P. K. Manoharan , S. Tremblay , M. M. Bisi , B. V. Jackson

First Season MWA Phase II EoR Power Spectrum Results at Redshift 7

The compact configuration of Phase II of the Murchison Widefield Array (MWA) consists of both a redundant subarray and pseudo-random baselines, offering unique opportunities to perform sky-model and redundant interferometric calibration.…

宇宙学与河外天体物理 · 物理学 2019-12-23 W. Li , J. C. Pober , N. Barry , B. J. Hazelton , M. F. Morales , C. M. Trott , A. Lanman , M. Wilensky , I. Sullivan , A. P. Beardsley , T. Booler , J. D. Bowman , R. Byrne , B. Crosse , D. Emrich , T. M. O. Franzen , K. Hasegawa , L. Horsley , M. Johnston-Hollitt , D. C. Jacobs , C. H. Jordan , R. C. Joseph , T. Kaneuji , D. L. Kaplan , D. Kenney , K. Kubota , J. Line , C. Lynch , B. McKinley , D. A. Mitchell , S. Murray , D. Pallot , B. Pindor , M. Rahimi , J. Riding , G. Sleap , K. Steele , K. Takahashi , S. J. Tingay , M. Walker , R. B. Wayth , R. L. Webster , A. Williams , C. Wu , J. S. B. Wyithe , S. Yoshiura , Q. Zheng

First Season MWA EoR Power Spectrum Results at Redshift 7

The Murchison Widefield Array (MWA) has collected hundreds of hours of Epoch of Reionization (EoR) data and now faces the challenge of overcoming foreground and systematic contamination to reduce the data to a cosmological measurement. We…

天体物理仪器与方法 · 物理学 2016-12-13 A. P. Beardsley , B. J. Hazelton , I. S. Sullivan , P. Carroll , N. Barry , M. Rahimi , B. Pindor , C. M. Trott , J. Line , Daniel C. Jacobs , M. F. Morales , J. C. Pober , G. Bernardi , Judd D. Bowman , M. P. Busch , F. Briggs , R. J. Cappallo , B. E. Corey , A. de Oliveira-Costa , Joshua S. Dillon , D. Emrich , A. Ewall-Wice , L. Feng , B. M. Gaensler , R. Goeke , L. J. Greenhill , J. N. Hewitt , N. Hurley-Walker , M. Johnston-Hollitt , D. L. Kaplan , J. C. Kasper , H. S. Kim , E. Kratzenberg , E. Lenc , A. Loeb , C. J. Lonsdale , M. J. Lynch , B. McKinley , S. R. McWhirter , D. A. Mitchell , E. Morgan , A. R. Neben , Nithyanandan Thyagarajan , D. Oberoi , A. R. Offringa , S. M. Ord , S. Paul , T. Prabu , P. Procopio , J. Riding , A. E. E. Rogers , A. Roshi , N. Udaya Shankar , Shiv K. Sethi , K. S. Srivani , R. Subrahmanyan , M. Tegmark , S. J. Tingay , M. Waterson , R. B. Wayth , R. L. Webster , A. R. Whitney , A. Williams , C. L. Williams , C. Wu , J. S. B. Wyithe