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Related papers: A JVLA 10~degree^2 deep survey

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The ngVLA will enable significant advances in our understanding of the formation and evolution of multiple star systems in the protostellar phase, building upon the breakthroughs enabled by the VLA. The high-sensitivity and resolution at…

Astrophysics of Galaxies · Physics 2018-10-17 John Tobin , Patrick Sheehan , Doug Johnstone

We study the radio properties of moderately obscured quasars over a range of redshifts to understand the role of radio activity in accretion using the Jansky Very Large Array (JVLA) at 6.0GHz and 1.4GHz. Our z~2.5 sample consists of…

Astrophysics of Galaxies · Physics 2016-08-31 Rachael M. Alexandroff , Nadia L. Zakamska , Sjoert van Velzen , Jenny E. Greene , Michael A. Strauss

Weak gravitational lensing is a powerful probe of cosmology and has emerged as a key probe for the Dark Universe. Up till now this science has been conducted mainly at optical wavelengths. Current upgraded and future radio facilities will…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-25 Prina Patel

In this proceeding, we summarize the key science goals and reference design for a next-generation Very Large Array (ngVLA) that is envisaged to operate in the 2030s. The ngVLA is an interferometric array with more than 10 times the…

Instrumentation and Methods for Astrophysics · Physics 2018-08-22 Eric J. Murphy

The past decade has seen the rise of various radio astronomy arrays, particularly for low-frequency observations below 100MHz. These developments have been primarily driven by interesting and fundamental scientific questions, such as…

Instrumentation and Methods for Astrophysics · Physics 2016-01-28 Raj Thilak Rajan , Albert-Jan Boonstra , Mark Bentum , Marc Klein-Wolt , Frederik Belien , Michel Arts , Noah Saks , Alle-Jan van der Veen

The bulk of the present-day stellar mass was formed in galaxies when the universe was less than half its current age (i.e., $1 \lesssim z \lesssim 3$). While this likely marks one of the most critical time periods for galaxy evolution, we…

Astrophysics of Galaxies · Physics 2022-07-19 Eric J. Murphy

Synergies between the {\em James Webb Space Telescope} ({\em JWST}) and the {\em Chandra} X-ray observatory have advanced the observational frontier by detecting a handful of active galactic nuclei (AGNs) beyond $z \sim$ 10. In particular,…

Astrophysics of Galaxies · Physics 2025-02-11 Muhammad A. Latif , Daniel J. Whalen

Determination of the epoch dependent star-formation rate of field galaxies is one of the principal goals of modern observational cosmology. Deep radio surveys, sensitive to starbursts out to $z \sim$ 1-2, may hold the key to understanding…

Astrophysics · Physics 2009-10-31 Eric A. Richards

We used the Karl G. Jansky Very Large Array (VLA) to image one primary beam area at 3 GHz with 8 arcsec FWHM resolution and 1.0 microJy/beam rms noise near the pointing center. The P(D) distribution from the central 10 arcmin of this…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 J. J. Condon , W. D. Cotton , E. B. Fomalont , K. I. Kellermann , N. Miller , R. A. Perley , D. Scott , T. Vernstrom , J. V. Wall

With this paper we participate to the call for ideas issued by the European Space Agency to define the Science Program and plan for space missions from 2035 to 2050. In particular we present five science cases where major advancements can…

Instrumentation and Methods for Astrophysics · Physics 2021-01-26 A. Zanella , C. Zanoni , F. Arrigoni-Battaia , A. Rubin , A. Pala , C. Peroux , R. Augustin , C. Circosta , E. Emsellem , E. George , D. Milakovic , R. van der Burg , T. Kupfer

We performed an automated comparison of the FIRST radio survey with the APM optical catalog to find radio lobes with optical counterparts. Based on an initial survey covering ~3000 square degrees, we selected a sample of 33 lens candidates…

Astrophysics · Physics 2009-10-31 J. Lehar , A. Buchalter , R. G. McMahon , C. S. Kochanek , T. W. B. Muxlow

We discuss the case for using the Next Generation Very Large Array both to discover new black hole X-ray binaries astrometrically, and to characterize them. We anticipate that the ngVLA will be able to find $\sim$100 new black hole X-ray…

High Energy Astrophysical Phenomena · Physics 2018-06-20 Thomas J. Maccarone , Laura Chomiuk , Jay Strader , James Miller-Jones , Greg Sivakoff

I describe some of the current challenges in galaxy formation theory with applications to formation of disks and of spheroids. Forthcoming deep surveys of galaxies with Keck and VLT will provide high quality spectra of $\sim 10^5$ galaxies…

Astrophysics · Physics 2007-05-23 Joseph Silk

Episodic accretion may be a common occurrence in the evolution of young pre-main sequence stars and has important implications for our understanding of star and planet formation. Many fundamental aspects of what drives the accretion…

The on-going PALFA survey is searching the Galactic plane (|b| < 5 deg., 32 < l < 77 deg. and 168 < l < 214 deg.) for radio pulsars at 1.4 GHz using ALFA, the 7-beam receiver installed at the Arecibo Observatory. By the end of August 2012,…

This white paper discusses how a "next-generation" Very Large Array (ngVLA) operating in the frequency range 1-116 GHz could be a groundbreaking tool to study the detailed astrophysics of the "matter cycle" in the Milky Way and other…

We explore the processes that trigger local AGN and the role of these AGN in regulating star formation, using ~350 nearby galaxies observed by the mJy Imaging VLBA Exploration at 20cm (mJIVE) survey. The >10^7 K brightness temperature…

Astrophysics of Galaxies · Physics 2015-07-15 Sugata Kaviraj , Stanislav S. Shabala , Adam T. Deller , Enno Middelberg

This article aims at clarifying the situation about astrophysical sources that might be observed with haloscope experiments sensitive to gravitational waves in the 1-10 GHz band. The GrAHal setup is taken as a benchmark. We follow a very…

General Relativity and Quantum Cosmology · Physics 2025-03-13 Aurélien Barrau , Juan García-Bellido , Thierry Grenet , Killian Martineau

A sample of 2712 radio-luminous galaxies is defined from the second data release of the Sloan Digital Sky Survey (SDSS) by cross-comparing the main spectroscopic galaxy sample with two radio surveys: the NRAO VLA Sky Survey (NVSS) and the…

Astrophysics · Physics 2009-11-11 P. N. Best , G. Kauffmann , T. M. Heckman , Z. Ivezic

We report the discovery of J1218+1813, a circular diffuse radio source detected in the Very Large Array (VLA) FIRST survey at 1400 MHz. The source has an angular diameter of approximately one arcminute, corresponding to a physical size of…

Astrophysics of Galaxies · Physics 2025-06-24 Shobha Kumari , Sabyasachi Pal , Souvik Manik