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Related papers: The Expanded Very Large Array

200 papers

We report results on multi-epoch Very Large Array (VLA) and pc-scale Very Long Baseline Array (VLBA) observations of candidate compact symmetric objects (CSOs) from the faint sample of high frequency peakers. New VLBA observations could…

Astrophysics of Galaxies · Physics 2020-09-30 M. Orienti , D. Dallacasa

This white paper describes the science case for Very Long Baseline Interferometry (VLBI) and provides suggestions towards upgrade paths for the European VLBI Network (EVN). The EVN is a distributed long-baseline radio interferometric array,…

This paper investigates how near-field beamfocusing can be achieved using a modular linear array (MLA), composed of multiple widely spaced uniform linear arrays (ULAs). The MLA architecture extends the aperture length of a standard ULA…

Signal Processing · Electrical Eng. & Systems 2025-12-09 Alva Kosasih , Özlem Tuğfe Demir , Emil Björnson

The next generation of radio telescope interferometric arrays requires careful design of the array configuration to optimize the performance of the overall system. We have developed a framework, based on a genetic algorithm, for rapid…

Astrophysics · Physics 2009-11-10 Babak E. Cohanim , Jacqueline N. Hewitt , Olivier de Weck

Achieving high-rate communication with accurate localization and wireless environment sensing has emerged as an important trend of beyond-fifth and sixth generation cellular systems. Extension of the antenna array to an extremely large…

Information Theory · Computer Science 2020-12-22 Jie Yang , Yong Zeng , Shi Jin , Chao-Kai Wen , Pingping Xu

The Gamma-ray Large Area Space Telescope (GLAST) is an observatory designed to perform gamma-ray astronomy in the energy range 20 MeV to 300 GeV, with supporting measurements for gamma-ray bursts from 10 keV to 25 MeV. GLAST will be…

Astrophysics · Physics 2009-06-23 D. Paneque , A. Borgland , A. Bovier , E. Bloom , Y. Edmonds , S. Funk , G. Godfrey , R. Rando , L. Wai , P. Wang

The Next-Generation Very Large Array (ngVLA) will be critical for understanding how galaxies are built and evolve at the earliest epochs. The sensitivity and frequency coverage will allow for the detection of cold gas and dust in `normal'…

We have observed 28 sources selected from the 1Jy sample of BL Lac objects (Stickel et al. 1991) with the Very Large Array (VLA) in A, B and D configurations at 1.36, 1.66 and 4.85 GHz, and/or with the Westerbork Synthesis Radio Telescope…

Astrophysics · Physics 2009-10-31 P. Cassaro , C. Stanghellini , M. Bondi , D. Dallacasa , R. Della Ceca , R. A. Zappala`

The first station of the Long Wavelength Array (LWA1) was completed in April 2011 and is currently performing observations resulting from its first call for proposals in addition to a continuing program of commissioning and characterization…

The Naval Research Laboratory and the National Radio Astronomy Observatory completed implementation of a low frequency capability on the VLA at 73.8 MHz in 1998. This frequency band offers unprecedented sensitivity (~25 mJy/beam) and…

We have used a relatively long, contiguous VHF observation of a bright cosmic radio source (Cygnus A) with the Very Large Array (VLA) to demonstrate the capability of this instrument to study the ionosphere. This interferometer, and others…

Space Physics · Physics 2015-06-03 J. F. Helmboldt , T. J. W. Lazio , H. T. Intema , K. F. Dymond

The Very Large Array (VLA) Low-frequency Sky Survey (VLSS) has imaged 95% of the 3*pi sr of sky north of declination = -30 degrees at a frequency of 74 MHz (4 meter wavelength). The resolution is 80" (FWHM) throughout, and the typical RMS…

The Large Array Survey Telescope (LAST) is designed to survey the variable and transient sky at high temporal cadence. The array is comprised of 48 F/2.2 telescopes of 27.9cm aperture, coupled to full-frame backside-illuminated cooled CMOS…

The low-frequency radio telescope of the Square Kilometre Array (SKA) is being built by the international radio astronomical community to (i) have orders of magnitude higher sensitivity and (ii) be able to map the sky several hundred times…

Instrumentation and Methods for Astrophysics · Physics 2023-05-29 Agaram Raghunathan , Keerthipriya Satish , Arasi Sathyamurthy , T. Prabu , B. S. Girish , K. S. Srivani , Shiv K. Sethi

The radio continuum emission from the Galaxy has a rich mix of thermal and non-thermal emission. This very richness makes their interpretation challenging since the low radio opacity means that a radio image represents the sum of all…

Instrumentation and Methods for Astrophysics · Physics 2011-06-17 S. Bhatnagar , U. Rau , D. A. Green , M. P. Rupen

Modern radio interferometers are designed with increasingly sprawling geographical footprints, offering enhanced sensitivity and resolution. However, managing such extensive facilities presents operational challenges that can potentially…

Instrumentation and Methods for Astrophysics · Physics 2025-12-19 C. A. Taylor , J. Dowell , G. B. Taylor , K. S. Obenberger , S. I. Chastain , J. Verastegui , L. E. Cordonnier , P. Kumar , E. Sheldahl , S. Bruzewski , T. Dolch , C. A. Siders

The Large Array Survey Telescope (LAST) is a wide-field telescope designed to explore the variable and transient sky with a high cadence and to be a test-bed for cost-effective telescope design. A LAST node is composed of 48 (32 already…

The Cherenkov Telescope Array (CTA) will be the major global observatory for VHE gamma-ray astronomy over the next decade and beyond. It will be an explorer of the extreme universe, with a broad scientific potential: from understanding the…

High Energy Astrophysical Phenomena · Physics 2019-07-22 Ulisses Barres de Almeida