A
Alan E. E. Rogers
Researcher at Massachusetts Institute of Technology
Publications - 279
Citations - 17336
Alan E. E. Rogers is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Very-long-baseline interferometry & Murchison Widefield Array. The author has an hindex of 54, co-authored 262 publications receiving 14036 citations. Previous affiliations of Alan E. E. Rogers include Curtin University & University of Sydney.
Papers
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Journal ArticleDOI
The Murchison widefield array: The square kilometre array precursor at low radio frequencies
Steven Tingay,Robert F. Goeke,Judd D. Bowman,David Emrich,Stephen M. Ord,Daniel A. Mitchell,Miguel F. Morales,T. Booler,Brian Crosse,Randall B. Wayth,Colin J. Lonsdale,S. E. Tremblay,D. Pallot,T. Colegate,Andreas Wicenec,Nadia Kudryavtseva,W. Arcus,David G. Barnes,Gianni Bernardi,Frank H. Briggs,S. Burns,John D. Bunton,Roger J. Cappallo,Brian E. Corey,Avinash A. Deshpande,Ludi deSouza,Bryan Gaensler,Lincoln J. Greenhill,Peter J. Hall,Bryna J. Hazelton,David Herne,Jacqueline N. Hewitt,Melanie Johnston-Hollitt,David L. Kaplan,Justin C. Kasper,B. B. Kincaid,R. Koenig,Eric Kratzenberg,Mervyn J. Lynch,Benjamin McKinley,Stephen R. McWhirter,Edward H. Morgan,Divya Oberoi,Joseph Pathikulangara,Thiagaraj Prabu,Ron Remillard,Alan E. E. Rogers,A. Roshi,Joseph E. Salah,Robert J. Sault,N. Udaya-Shankar,F. Schlagenhaufer,K. S. Srivani,Jamie Stevens,Ravi Subrahmanyan,M. Waterson,Rachel L. Webster,Alan R. Whitney,Andrew Williams,Christopher L. Williams,J. S. B. Wyithe +60 more
TL;DR: The Murchison Widefield Array (MWA) as discussed by the authors is one of three Square Kilometre Array Precursor telescopes and is located at the MUR-astronomy Observatory in Western Australia, a location chosen for its extremely low levels of radio frequency interference.
Journal ArticleDOI
Geodesy by radio interferometry: Effects of atmospheric modeling errors on estimates of baseline length
TL;DR: In this paper, a new mapping function for the elevation angle dependence of the atmospheric delay is developed, and the delay predicted by this mapping function differs from ray trace results by less than approximately 5 mm, at all elevations down to 5 deg elevation, and introduces errors into the estimates of baseline length.
Journal ArticleDOI
An absorption profile centred at 78 megahertz in the sky-averaged spectrum
Judd D. Bowman,Alan E. E. Rogers,Raul A. Monsalve,Raul A. Monsalve,Raul A. Monsalve,Thomas J. Mozdzen,Nivedita Mahesh +6 more
TL;DR: The detection of a flattened absorption profile in the sky-averaged radio spectrum that is largely consistent with expectations for the 21-centimetre signal induced by early stars; however, the best-fitting amplitude of the profile is more than a factor of two greater than the largest predictions.
Journal ArticleDOI
Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
Sheperd S. Doeleman,Jonathan Weintroub,Alan E. E. Rogers,Richard Plambeck,Robert Freund,Remo P. J. Tilanus,Per Friberg,Lucy M. Ziurys,James M. Moran,Brian E. Corey,K. Young,Daniel L. Smythe,Michael Titus,Daniel P. Marrone,Daniel P. Marrone,Roger J. Cappallo,Douglas C.-J. Bock,Geoffrey C. Bower,R. A. Chamberlin,Gary R. Davis,Thomas P. Krichbaum,James W. Lamb,H. Maness,Arthur Niell,Alan L. Roy,Peter A. Strittmatter,Dan Werthimer,Alan R. Whitney,David P. Woody +28 more
TL;DR: Observations at a wavelength of 1.3 mm set a size of microarcseconds on the intrinsic diameter of Sagittarius A*, suggesting that the bulk of Sgr A* emission may not be centred on the black hole, but arises in the surrounding accretion flow.
Journal ArticleDOI
The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
Steven Tingay,Robert F. Goeke,Judd D. Bowman,David Emrich,Stephen M. Ord,Daniel A. Mitchell,Miguel F. Morales,Tom Booler,Brian Crosse,D. Pallot,Andreas Wicenec,W. Arcus,David G. Barnes,Gianni Bernardi,Frank H. Briggs,S. Burns,John D. Bunton,Roger J. Cappallo,T. Colegate,Brian E. Corey,Avinash A. Deshpande,L. deSouza,Bryan Gaensler,Lincoln J. Greenhill,J. Hall,Bryna J. Hazelton,David Herne,Jacqueline N. Hewitt,Melanie Johnston-Hollitt,David L. Kaplan,Justin C. Kasper,B. B. Kincaid,R. Koenig,Eric Kratzenberg,Colin J. Lonsdale,Mervyn J. Lynch,Benjamin McKinley,Stephen R. McWhirter,Edward H. Morgan,Divya Oberoi,Joseph Pathikulangara,Thiagaraj Prabu,Ron Remillard,Alan E. E. Rogers,A. Roshi,Joseph E. Salah,Robert J. Sault,N. Udaya-Shankar,F. Schlagenhaufer,K. S. Srivani,Jamie Stevens,Ravi Subrahmanyan,S. E. Tremblay,Randall B. Wayth,M. Waterson,Rachel L. Webster,Alan R. Whitney,Andrew Williams,Christopher L. Williams,J. S. B. Wyithe +59 more
TL;DR: The Murchison Widefield Array (MWA) as mentioned in this paper is one of three Square Kilometre Array Precursor telescopes and is located at the MUR-astronomy Observatory in Western Australia, a location chosen for its extremely low levels of radio frequency interference.