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This document was submitted as supporting material to an Engineering Change Proposal (ECP) for the Square Kilometre Array (SKA). This ECP requests gridded visibilities as an extra imaging data product from the SKA, in order to enable…

Instrumentation and Methods for Astrophysics · Physics 2015-07-24 Ian Harrison , Michael L. Brown

A semi-coprime array (SCA) interleaves two undersampled uniform linear arrays (ULAs) and a $Q$ element standard ULA. The undersampling factors of the first two arrays are $QM$ and $QN$ respectively where $M$ and $N$ are coprime. The…

Signal Processing · Electrical Eng. & Systems 2019-05-22 Kaushallya Adhikari

We consider the capabilities for detecting low order CO emission lines from high-z galaxies using the next generation of radio telescopes operating at 22 and 43 GHz. We employ models for the evolution of dusty star forming galaxies based on…

Astrophysics · Physics 2009-11-07 C. L. Carilli , A. W. Blain

Cameras for imaging in short and mid-wave infrared spectra are significantly more expensive than their counterparts in visible imaging. As a result, high-resolution imaging in those spectrum remains beyond the reach of most consumers. Over…

Computer Vision and Pattern Recognition · Computer Science 2015-04-17 Huaijin Chen , M. Salman Asif , Aswin C. Sankaranarayanan , Ashok Veeraraghavan

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…

Achieving high accuracy and precision in stellar parameter and chemical composition determinations is challenging in massive star spectroscopy. On one hand, the target selection for an unbiased sample build-up is complicated by several…

Solar and Stellar Astrophysics · Physics 2017-11-15 Maria-Fernanda Nieva , Norbert Przybilla

The Infrared Spectrograph (IRS) on board the Spitzer Space Telescope observed about 15,000 objects during the cryogenic mission lifetime. Observations provided low-resolution (R~60-127) spectra over ~5-38um and high-resolution (R~600)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-26 V. Lebouteiller , D. J. Barry , C. Goes , G. C. Sloan , H. W. W. Spoon , D. W. Weedman , J. Bernard-Salas , J. R. Houck

The Chandra Multiwavength Plane (ChaMPlane) Survey of the galactic plane incorporates serendipitous sources from selected Chandra pointings in or near the galactic plane (b < 12deg; >20 ksec; lack of bright diffuse or point sources) to…

Current data indicate that the reionization of the Universe was complete by redshift z~6-7, and while the sources responsible for this process have yet to be identified, star-forming galaxies are often considered the most likely candidates.…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-09 E. Zackrisson , A. K. Inoue

The Very Small Array (VSA) is a synthesis telescope designed to image faint structures in the cosmic microwave background on degree and sub-degree angular scales. The VSA has key differences from other CMB interferometers with the result…

The light emitted from the stellar photosphere serves as a unique signature for the nature of stars. The behaviour of these stellar lines depend upon the surface temperature, mass, evolutionary status and chemical composition of the star.…

Solar and Stellar Astrophysics · Physics 2016-10-25 Priyanka Chaturvedi , Abhijit Chakraborty , B. G. Anandarao

The Atacama Large Millimeter-Submillimeter Array (ALMA) has opened a new window for studying the Sun via high-resolution high-sensitivity imaging at millimeter wavelengths. In this contribution I review the capabilities of the instrument…

Solar and Stellar Astrophysics · Physics 2019-02-13 Maria Loukitcheva

In this paper we introduce a new method for analysing Milky Way phase-space which allows us to reveal the imprint left by the Milky Way bar and spiral arms on the stars with full phase-space data in Gaia Data Release 2. The unprecedented…

Astrophysics of Galaxies · Physics 2020-02-05 S. Khoperskov , O. Gerhard , P. Di Matteo , M. Haywood , D. Katz , S. Khrapov , A. Khoperskov , M. Arnaboldi

The time domain remains, in many respects, the least explored of parameter spaces in astronomical studies. The purpose of this article is to encourage the SPICA community to consider the potential of rapid infrared timing observations. The…

High Energy Astrophysical Phenomena · Physics 2013-10-15 P. Gandhi , D. M. Russell , P. Casella , J. Malzac , T. Nakagawa

We present the results of a submillimeter survey of 53 low-mass dense cores with the Submillimeter High Angular Resolution Camera II (SHARC-II). The survey is a follow-up project to the Spitzer Legacy Program ``From Molecular Cores to…

Astrophysics · Physics 2010-03-18 Jingwen Wu , Michael M. Dunham , Neal J. Evans , Tyler L. Bourke , Chadwick H. Young

Sparse sensor arrays offer a cost effective alternative to uniform arrays. By utilizing the co-array, a sparse array can match the performance of a filled array, despite having significantly fewer sensors. However, even sparse arrays can…

Signal Processing · Electrical Eng. & Systems 2018-11-14 Robin Rajamäki , Visa Koivunen

We present ALMA Atacama Compact Array (ACA) 870 micron continuum maps of 28 infrared-bright SDSS quasars with Herschel/SPIRE detections at redshifts 2-4, the largest such sample ever observed with ALMA. The ACA detections are centred on the…

Astrophysics of Galaxies · Physics 2018-09-05 E. Hatziminaoglou , D. Farrah , E. Humphreys , A. Manrique , I. Perez-Fournon , L. K. Pitchford , E. Salvador-Sole , L. Wang

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…

Astrophysics of Galaxies · Physics 2019-02-08 J. S. Morgan , J-P. Macquart , R. Chhetri , R. D. Ekers , S. J. Tingay , E. M. Sadler

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…

Astrophysics · Physics 2010-11-11 D. McConnell , E. Carretti , R. Subrahmanyan

TARA (Telescope Array Radar) is a cosmic ray radar detection experiment colocated with Telescope Array, the conventional surface scintillation detector (SD) and fluorescence telescope detector (FD) near Delta, Utah, U.S.A. The TARA detector…

Instrumentation and Methods for Astrophysics · Physics 2016-12-07 R. U. Abbasi , M. Abe , M. Abou Bakr Othman , T. Abu-Zayyad , M. Allen , R. Anderson , R. Azuma , E. Barcikowski , J. W. Belz , D. R. Bergman , D. Besson , S. A. Blake , M. Byrne , R. Cady , M. J. Chae , B. G. Cheon , J. Chiba , M. Chikawa , W. R. Cho , B. Farhang-Boroujeny , T. Fujii , M. Fukushima , W. H. Gillman , T. Goto , W. Hanlon , J. C. Hanson , Y. Hayashi , N. Hayashida , K. Hibino , K. Honda , D. Ikeda , N. Inoue , T. Ishii , R. Ishimori , H. Ito , D. Ivanov , C. Jayanthmurthy , C. C. H. Jui , K. Kadota , F. Kakimoto , O. Kalashev , K. Kasahara , H. Kawai , S. Kawakami , S. Kawana , K. Kawata , E. Kido , H. B. Kim , J. H. Kim , J. H. Kim , S. Kitamura , Y. Kitamura , S. Kunwar , V. Kuzmin , Y. J. Kwon , J. Lan , S. I. Lim , J. P. Lundquist , K. Machida , K. Martens , T. Matsuda , T. Matsuyama , J. N. Matthews , M. Minamino , K. Mukai , I. Myers , K. Nagasawa , S. Nagataki , T. Nakamura , T. Nonaka , A. Nozato , S. Ogio , J. Ogura , M. Ohnishi , H. Ohoka , K. Oki , T. Okuda , M. Ono , A. Oshima , S. Ozawa , I. H. Park , S. Prohira , M. S. Pshirkov , A. Rezazadeh-Reyhani , D. C. Rodriguez , G. Rubtsov , D. Ryu , H. Sagawa , N. Sakurai , A. L. Sampson , L. M. Scott , D. Schurig , P. D. Shah , F. Shibata , T. Shibata , H. Shimodaira , B. K. Shin , J. D. Smith , P. Sokolsky , R. W. Springer , B. T. Stokes , S. R. Stratton , T. A. Stroman , T. Suzawa , H. Takai , M. Takamura , M. Takeda , R. Takeishi , A. Taketa , M. Takita , Y. Tameda , H. Tanaka , K. Tanaka , M. Tanaka , S. B. Thomas , G. B. Thomson , P. Tinyakov , I. Tkachev , H. Tokuno , T. Tomida , S. Troitsky , Y. Tsunesada , K. Tsutsumi , Y. Uchihori , S. Udo , F. Urban , G. Vasiloff , S. Venkatesh , T. Wong , R. Yamane , H. Yamaoka , K. Yamazaki , J. Yang , K. Yashiro , Y. Yoneda , S. Yoshida , H. Yoshii , R. Zollinger , Z. Zundel
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