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Australia Telescope Compact Array (ATCA) observations in sky regions selected to be low in foreground confusion have been used to infer limits on arcmin-scale CMB anisotropy in total intensity and polarization. These deep searches have,…

天体物理学 · 物理学 2007-05-23 Ravi Subrahmanyan

Here we describe the Compact Array Broadband Backend (CABB) and present first results obtained with the upgraded Australia Telescope Compact Array (ATCA). The 16-fold increase in observing bandwidth, from 2 x 128 MHz to 2 x 2048 MHz, high…

The Australia Telescope Compact Array (ATCA) and the Mopra facility have been used to search for new southern class I methanol masers at 9.9, 25 (J=5) and 104 GHz, which are thought to trace more energetic conditions in the interface…

天体物理学 · 物理学 2009-11-13 M. A. Voronkov , K. J. Brooks , A. M. Sobolev , S. P. Ellingsen , A. B. Ostrovskii , J. L. Caswell

We present a millimetre-wave site characterisation for the Australia Telescope Compact Array (ATCA) based on nearly 9 years of data from a seeing monitor operating at this facility. The seeing monitor, which measures the phase fluctuations…

天体物理仪器与方法 · 物理学 2015-06-19 Balthasar T. Indermuehle , Michael G. Burton

We have made an 8.7 GHz image of a sky region with a resolution of 8 arcmin and high brightness sensitivity using the Australia Telescope Compact Array (ATCA). in an ultra compact configuration. The foreground discrete-source confusion was…

天体物理学 · 物理学 2009-10-30 Ravi Subrahmanyan , Michael J. Kesteven , Ronald D. Ekers , Malcolm Sinclair , Joseph Silk

We have used the Australia Telescope Compact Array (ATCA) to search for a number of centimetre wavelength methanol transitions which are predicted to show weak maser emission towards star formation regions. Sensitive, high spatial and…

星系天体物理 · 物理学 2016-11-15 Antony Chipman , Simon Ellingsen , Andrej Sobolev , Dinah Cragg

We report the use of the Australia Telescope Compact Array (ATCA) to conduct polarimetric observations of the sky at 5 GHz. The ATCA is normally operated as an interferometer array, but these observations were conducted in a split array…

天体物理学 · 物理学 2010-11-11 D. McConnell , E. Carretti , R. Subrahmanyan

Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current single-dish facilities have presented a tantalising view of…

天体物理仪器与方法 · 物理学 2024-08-22 Mark Booth , Pamela Klaassen , Claudia Cicone , Tony Mroczkowski , Martin A. Cordiner , Luca Di Mascolo , Doug Johnstone , Eelco van Kampen , Minju M. Lee , Daizhong Liu , John Orlowski-Scherer , Amélie Saintonge , Matthew W. L. Smith , Alexander Thelen , Sven Wedemeyer , Kazunori Akiyama , Stefano Andreon , Doris Arzoumanian , Tom J. L. C. Bakx , Caroline Bot , Geoffrey Bower , Roman Brajša , Chian-Chou Chen , Elisabete da Cunha , David Eden , Stefano Ettori , Brandt Gaches , Evanthia Hatziminaoglou , Patricia Luppe , Benjamin Magnelli , Jonathan P. Marshall , Francisco Miguel Montenegro-Montes , Michael Niemack , Conor Nixon , Imke de Pater , Yvette Perrott , Sandra I. Raimundo , Elena Redaelli , Anita Richards , Matus Rybak , Nikolina Šarčević , Dmitry Semenov , Silvia Spezzano , Sundar Srinivasan , Thomas Stanke , Paola Andreani , Maria T. Beltrán , Bryan J. Butler , Sebastiano Cantalupo , Miguel Chavez Dagostino , Ana Duarte-Cabral , Bjorn Emonts , Leigh Fletcher , Dale E. Gary , Stanislav Gunar , Alvaro Hacar , Bendix Hagedorn , Tomek Kaminski , Fiona Kirton , Katherine de Kleer , Eduard Kontar , Yi-Jehng Kuan , John Lightfoot , Enrique Lopez-Rodriguez , Andreas Lundgren , Stefanie N. Milam , Atul Mohan , Raphael Moreno , Galina G. Motorina , Arielle Moullet , Kate Pattle , Alberto Pellizzoni , Nicolas Peretto , Joanna Ramasawmy , Claudio Ricci , Andrew J. Rigby , Álvaro Sánchez-Monge , Maryam Saberi , Masumi Shimojo , Aurora Simionescu , Mark Thompson , Alessio Traficante , Cristian Vignali , Stephen M. White

We present S-PASS/ATCA, the first wide-band radio polarimetry survey of compact sources in the southern sky. We describe how we selected targets for observations with the Australia Telescope Compact Array (ATCA) in the 16 cm band (1.3 - 3.1…

星系天体物理 · 物理学 2019-03-06 D. H. F. M. Schnitzeler , E. Carretti , M. H. Wieringa , B. M. Gaensler , M. Haverkorn , S. Poppi

In order to operationalize the Australia Telescope Compact Array (ATCA) for space situational awareness (SSA) applications, we develop a system model for range and direction of arrival (DOA) estimation based on the interferometric data. We…

天体物理仪器与方法 · 物理学 2023-10-10 Hamed Nosrati , Stephanie Smith , Douglas B. Hayman

[ABRIDGED VERSION] 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. The SKA will be 50 times more sensitive than any existing radio facility. A…

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

Science archives are cornerstones of modern astronomical facilities. In this paper we describe the version 1.0 milestone of the Atacama Large Millimeter/submillimeter Array Science Archive. This version features a comprehensive query…

The Atacama Large Millimeter Array (ALMA), a world-wide project (64x12m-dishes operating from 84 to 720 GHz, to be completed by 2011) will represent a jump of almost two orders of magnitude in sensitivity and angular resolution as compared…

天体物理学 · 物理学 2007-05-23 Alain Omont

The Atacama Large Millimeter/submillimeter Array (ALMA) is a new powerful tool for observing the Sun at high spatial, temporal, and spectral resolution. These capabilities can address a broad range of fundamental scientific questions in…

We present the design of, and a first analysis of data from, the atmospheric seeing monitor at the Australia Telescope Compact Array (ATCA). The seeing monitor has been operational almost continuously since May 2004 and every 10min delivers…

天体物理学 · 物理学 2009-11-11 Enno Middelberg , Robert J. Sault , Michael J. Kesteven

We present a mosaic image of the 1.4GHz radio continuum emission from the Large Magellanic Cloud (LMC) observed with the Australia Telescope Compact Array (ATCA) and the Parkes Telescope. The mosaic covers 10.8 x 12.3 square degrees with an…

天体物理学 · 物理学 2015-05-13 A. Hughes , L. Staveley-Smith , S. Kim , M. Wolleben , M. Filipović
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