Výsledky vyhledávání - "M. J. Kesteven"

S-band Polarization All-Sky Survey (S-PASS): survey description and maps

Autor: Shea Brown, D. H. F. M. Schnitzler, Roland M. Crocker, Ettore Carretti, Sergio Poppi, X. H. Sun, M. J. Kesteven, Lister Staveley-Smith, Gianni Bernardi, Bryan Gaensler, Cormac Purcell, Marijke Haverkorn

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 489, 2, pp. 2330-2354
Monthly Notices of the Royal Astronomical Society, 489, 2330-2354

We present the S-Band Polarization All Sky Survey (S-PASS), a survey of polarized radio emission over the southern sky at Dec~$< -1^\circ$ taken with the Parkes radio telescope at 2.3~GHz. The main aim was to observe at a frequency high enough to avo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2159c9d85888cc176c95d7b4cadff42e
https://doi.org/10.1093/mnras/stz806

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An ultra-wide bandwidth (704 to 4 032 MHz) receiver for the Parkes radio telescope

Autor: Andrew Jameson, Santy Castillo, K. Jeganathan, Michael Kramer, Linqing Wen, Richard N. Manchester, Bin Dong, Stacy Mader, Ryan Shannon, Paul Doherty, Vince McIntyre, Vanessa A. Moss, Ettore Carretti, Yoon S. Chung, Andrew Cameron, Malcolm B. Smith, Danny C. Price, Sean Severs, John Sarkissian, Matthew Whiting, Nathan Pope, Nick Carter, Balthasar T. Indermuehle, Lawrence Toomey, Matthew Bailes, Les Reilly, M. Bourne, M. Marquarding, Stephanie Smith, Charlotte Sobey, Ken W. Smart, Nina Wang, Timothy Robishaw, J. A. Green, M. Bowen, Anastasios Tzioumis, Paul Roberts, Xu-Yang Gao, Elaine M. Sadler, M. Leach, Ron Beresford, B. Preisig, Philip G. Edwards, Peter Roush, George Hobbs, Jin-Lin Han, J. Tuthill, Ken Reeves, Willem van Straten, Simon Johnston, Jane F. Kaczmarek, W. Cheng, D. George, Azeem Ahmed, Douglas B. Hayman, N. D. R. Bhat, Shi Dai, Daniel A. Craig, Stefan Oslowski, Tim Ruckley, Douglas C.-J. Bock, Henry Kanoniuk, James Dempsey, Lister Staveley-Smith, Joanne Dawson, A. Dunning, Tuohutinuer Ergesh, Chris Phillips, John Reynolds, R. Chekkala, M. J. Kesteven, S.W. Amy

We describe an ultra-wide-bandwidth, low-frequency receiver ("UWL") recently installed on the Parkes radio telescope. The receiver system provides continuous frequency coverage from 704 to 4032 MHz. For much of the band (~60%) the system temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2beba06ce57ae7f3bbcf6f8ddee7d51
https://doi.org/10.1017/pasa.2020.2

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The jet/wind outflow in Centaurus A

Publikováno v: Monthly Notices of the Royal Astronomical Society, 474, 3, pp. 4056-4072
Monthly Notices of the Royal Astronomical Society, 474(3), 4056-4072. Oxford University Press
arXiv
Monthly Notices of the Royal Astronomical Society, 474, 4056-4072

We present new radio and optical images of the nearest radio galaxy Centaurus A and its host galaxy NGC 5128. We focus our investigation on the northern transition region, where energy is transported from the ~5 kpc (~5 arcmin) scales of the Northern

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf64356e96cb36916f62c5240a2444c2
https://hdl.handle.net/11370/5e3b83c2-4a6f-42ee-8f75-932836913de7

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S-PASS view of polarized Galactic synchrotron at 2.3 GHz as a contaminant to CMB observations

Autor: Bryan Gaensler, Shea Brown, M. J. Kesteven, Nicoletta Krachmalnicoff, Marijke Haverkorn, Ettore Carretti, Gianni Bernardi, Carlo Baccigalupi, Lister Staveley-Smith, Francesca Perrotta, Sergio Poppi

Publikováno v: Astronomy & Astrophysics, 618, pp. 1-18
Astronomy & Astrophysics
Astronomy & Astrophysics, 618, 1-18
NASA Astrophysics Data System

We analyze the Southern Sky emission in linear polarization at 2.3 GHz as observed by the S-band Polarization All Sky Survey S-PASS. Our purpose is to study the properties of the diffuse Galactic polarized synchrotron as a contaminant to CMB B-mode o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbe451246d71fca975f59ad92684f6f5
https://hdl.handle.net/2066/197338

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Ghost of a Shell: Magnetic Fields of Galactic Supershell GSH 006$-$15$+$7

Autor: Bryan Gaensler, A. J. M. Thomson, John M. Dickey, Naomi McClure-Griffiths, M. J. Kesteven, Christoph Federrath, Ettore Carretti, Marijke Haverkorn, Lister Staveley-Smith

Publikováno v: Monthly Notices of the Royal Astronomical Society, 479, 4, pp. 5620-5637
Monthly Notices of the Royal Astronomical Society, 479, 5620-5637

We identify a counterpart to a Galactic supershell in diffuse radio polarisation, and use this to determine the magnetic fields associated with this object. GSH 006$-$15$+$7 has perturbed the polarised emission at 2.3$\,$GHz, as observed in the S-ban

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e67f1b841368f8221f1c594ce51c25a5
http://arxiv.org/abs/1807.04759

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A new perspective on turbulent Galactic magnetic fields through comparison of linear polarisation decomposition techniques

Autor: E. Carretti, Bryan Gaensler, Jean-François Robitaille, Jason D. McEwen, M. J. Kesteven, M. Haverkorn, Gianni Bernardi, Sergio Poppi, Anna M. M. Scaife, Boris Leistedt, Lister Staveley-Smith

Publikováno v: Monthly Notices of the Royal Astronomical Society, 468, 3, pp. 2957-2974
Robitaille, J-F, Scaife, A, Carretti, E, Gaensler, B M, McEwen, J D, Leistedt, B, Haverkorn, M, Bernardi, G, Kesteven, M J, Poppi, S & Staveley-Smith, L 2017, ' A new perspective on turbulent Galactic magnetic fields through comparison of linear polarisation decomposition techniques ', Monthly Notices of the Royal Astronomical Society, vol. 468, no. 3, pp. 2957-2974 . https://doi.org/10.1093/mnras/stx642
Monthly Notices of the Royal Astronomical Society, 468, 2957-2974

We compare two rotationally invariant decomposition techniques on linear polarisation data: the spin-2 spherical harmonic decomposition in two opposite parities, the $E$- and $B$-mode, and the multiscale analysis of the gradient of linear polarisatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23e320445ceefdc70997ee06bf497e3d

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System performance testing of the DVA1 radio telescope

Autor: Lynn Baker, Timothy Robishaw, Gordon Lacy, A. D. Gray, G. J. Hovey, M. J. Kesteven, Lewis B. G. Knee

Publikováno v: SPIE Proceedings.

DVA1 (Dish Verification Antenna 1) is a highly innovative rim-supported single-piece composite-material dish radio telescope developed at the National Research Council Canada (NRC). It has a feed-high offset Gregorian optical design with a primary ef

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47dc1d7e1b5c46d84d54d2f47b83f0c3
https://doi.org/10.1117/12.2232179

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MULTIFREQUENCY RADIO MEASUREMENTS OF SUPERNOVA 1987A OVER 22 YEARS

Autor: Chi-Yung Ng, Bryan Gaensler, Toby Potter, Lewis Ball, Giovanna Zanardo, Anastasios Tzioumis, R. N. Manchester, L. Staveley-Smith, M. J. Kesteven

Publikováno v: The Astrophysical Journal. 710:1515-1529

We present extensive observations of the radio emission from the remnant of SN 1987A made with the Australia Telescope Compact Array (ATCA), since the first detection of the remnant in 1990. The radio emission has evolved in time providing unique inf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::258b61e64b704df434801554a8fe2329
https://doi.org/10.1088/0004-637x/710/2/1515

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Australian SKA Pathfinder: A High-Dynamic Range Wide-Field of View Survey Telescope

Autor: L. Ball, Michelle C. Storey, M. J. Kesteven, B. J. Boyle, Tim J. Cornwell, Grant Hampson, Stuart G. Hay, John D. Bunton, J. D. O'Sullivan, Aaron Chippendale, R. G. Gough, Ilana Feain, Antony Schinckel, C. E. Jacka, Simon Johnston, T. Sweetnam, Carole Jackson, Ron Beresford, David DeBoer

Publikováno v: Proceedings of the IEEE. 97:1507-1521

The Australia SKA Pathfinder (ASKAP) is a new telescope under development as a world-class high-dynamic-range wide-field-of-view survey instrument. It will utilize focal plane phased array feeds on the 36 12-m antennas that will compose the array. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d2e8a23de9cd929bafa750d0a39ad9d
https://doi.org/10.1109/jproc.2009.2016516

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Fourier Modeling of the Radio Torus Surrounding SN 1987A

Autor: Chi-Yung Ng, Anastasios Tzioumis, R. N. Manchester, Bryan Gaensler, M. J. Kesteven, L. Ball, L. Staveley-Smith

Publikováno v: The Astrophysical Journal. 684:481-497

We present detailed Fourier modeling of the radio remnant of Supernova 1987A, using high-resolution 9 GHz and 18 GHz data taken with the Australia Telescope Compact Array over the period 1992 to 2008. We develop a parameterized three-dimensional toru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4cd548adfaaec3f95f5e75314b032f6
https://doi.org/10.1086/590330

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