Publications (28)
A Wideband Polarization Survey of the Extragalactic Sky at 2-4 GHz: A Science White Paper for the VLA Sky Survey
Sui Ann Mao, Julie Banfield, Bryan Gaensler +23
A VLA Sky Survey of the extragalactic sky at S band (2-4 GHz) with polarization information can uniquely probe the magneto-ionic medium in a wide range of astrophysical environment…
The DRAO Planck Deep Fields: the polarization properties of radio galaxies at 1.4 GHz
Julie Grant, Russ Taylor, Jeroen Stil +4
We present results of deep polarization imaging at 1.4 GHz with the Dominion Radio Astrophysical Observatory as part of the DRAO Planck Deep Fields project. This deep extragalactic…
Magnetic Field Tomography in Nearby Galaxies with the Square Kilometre Array
George Heald, Rainer Beck, W. J. G. de Blok +16
Magnetic fields play an important role in shaping the structure and evolution of the interstellar medium (ISM) of galaxies, but the details of this relationship remain unclear. Wit…
Astronomy below the Survey Threshold
Jonathan T. L. Zwart, Jasper Wall, Alexander Karim +15
Astronomy at or below the 'survey threshold' has expanded significantly since the publication of the original 'Science with the Square Kilometer Array' in 1999 and its update in 20…
The Radio Spectral Energy Distribution and Star Formation Calibration in MIGHTEE-COSMOS Highly Star-Forming Galaxies at 1.5 < z < 3.5
Fatemeh Tabatabaei, Maryam Khademi, Matt J. Jarvis +6
Studying the radio spectral energy distribution (SED) of distant galaxies is essential for understanding their assembly and evolution over cosmic time. We present rest-frame radio…
Measuring magnetism in the Milky Way with the Square Kilometre Array
Marijke Haverkorn, Takuya Akahori, Ettore Carretti +17
Magnetic fields in the Milky Way are present on a wide variety of sizes and strengths, influencing many processes in the Galactic ecosystem such as star formation, gas dynamics, je…
The impact of the SKA on Galactic Radioastronomy: continuum observations
Grazia Umana, Corrado Trigilio, Luciano Cerrigone +11
The SKA will be a state of the art radiotelescope optimized for both large area surveys as well as for deep pointed observations. In this paper we analyze the impact that the SKA w…
Direction Dependent Corrections in Polarimetric Radio Imaging III: A-to-Z Solver -- Modeling the full Jones antenna aperture illumination pattern
Srikrishna Sekhar, Preshanth Jagannathan, Brian Kirk +2
In this third paper of a series describing direction dependent corrections for polarimetric radio imaging, we present the the A-to-Z solver methodology to model the full Jones ante…
A JVLA 10~degree^2 deep survey
Matt J. Jarvis, Sanjay Bhatnagar, Marcus Bruggen +10
(Abridged)One of the fundamental challenges for astrophysics in the 21st century is finding a way to untangle the physical processes that govern galaxy formation and evolution. Giv…
SuperMIGHTEE : Spectral Ages of Remnant Radio Galaxy Candidates in the XMM-LSS Field
Sushant Dutta, Veeresh Singh, C. H. Ishwara Chandra +8
Remnant radio galaxies, whose lobes are no longer replenished by jets from the active galactic nucleus (AGN), offer key constraints on AGN duty cycles and the timescales of radio j…
MIGHTEE-HI: Discovery of an HI-rich galaxy group at z = 0.044 with MeerKAT
Shilpa Ranchod, Roger P. Deane, Anastasia A. Ponomareva +13
We present the serendipitous discovery of a galaxy group in the XMM-LSS field with MIGHTEE Early Science observations. Twenty galaxies are detected in HI in this group…
MIGHTEE-HI: the HI Size-Mass relation over the last billion years
Sambatriniaina H. A. Rajohnson, Bradley S. Frank, Anastasia A. Ponomareva +15
We present the observed HI size-mass relation of galaxies from the MIGHTEE Survey Early Science data. The high sensitivity of MeerKAT allows us to detect galaxies spanning mo…
MIGHTEE: Discovery of a triple-double radio galaxy
Tombo F. Rarivoarinoro, Zara Randriamanakoto, Russ Taylor +8
Triple-double radio galaxies (TDRGs) are amongst the rarest subpopulations of radio galaxies (RGs). They are characterised by three pairs of radio lobes, where each pair of lobes r…
GALFACTS: The G-ALFA Continuum Transit Survey
Russ Taylor, Chris Salter
The GALFACTS project is using the L-band seven feed array receiver system on the Arecibo telescope to carry out an imaging spectro-polarimetric survey of the 30% of the sky visible…
A Python-Based Peeling Framework for Radio Interferometry: Application to uGMRT 650MHz Imaging
Hao Peng, Fangxia An, Yuheng Zhang +4
Modern radio interferometric arrays offer high sensitivity, wide fields of view, and broad frequency coverage, but also pose significant data calibration challenges. Standard direc…
HI intensity mapping with the MIGHTEE survey: power spectrum estimates
Sourabh Paul, Mario G. Santos, Junaid Townsend +5
Intensity mapping (IM) with neutral hydrogen is a promising avenue to probe the large scale structure of the Universe. In this paper, we demonstrate that using the 64-dish MeerKAT…
Direction Dependent Effects In Wide-Field Wideband Full Stokes Radio Imaging
Preshanth Jagannathan, Sanjay Bhatnagar, Urvashi Rau +1
Synthesis imaging in radio astronomy is affected by instrumental and atmospheric effects which introduce direction-dependent (DD) gains.The antenna power pattern varies both as a f…
Faraday Tomography with the SKA: A New Era of Cosmic Magnetism Studies
Miguel Carcamo, Anna M. M. Scaife, Jeroen Stil +3
The Square Kilometre Array (SKA) represents a significant advancement in radio astronomy, enabling detailed study of cosmic magnetism through Faraday Rotation and Faraday Measureme…
A Compressed Sensing Faraday Depth Reconstruction Framework for the MeerKAT MIGHTEE-POL Survey
Miguel Cárcamo, Anna Scaife, Russ Taylor +5
In this work we present a novel compute framework for reconstructing Faraday depth signals from noisy and incomplete spectro-polarimetric radio datasets. This framework is based on…
HI Intensity Mapping with the MIGHTEE Survey: First Results of the HI Power Spectrum
Aishrila Mazumder, Laura Wolz, Zhaoting Chen +6
We present the first results of the HI intensity mapping power spectrum analysis with the MeerKAT International GigaHertz Tiered Extragalactic Exploration (MIGHTEE) survey. We use…
Large Synoptic Survey Telescope White Paper; The Case for Matching U-band on Deep Drilling Fields
B. W. Holwerda, A. Baker, S. Blyth +12
U-band observations with the LSST have yet to be fully optimized in cadence. The straw man survey design is a simple coverage of the medium-deep-fast survey. Here we argue that dee…
The Optical Polarization Variability of PKS 2155-304: Correlations at Low and High Energies
Nikki Pekeur, Russ Taylor, Renée Kraan-Korteweg
Gamma-ray emitting blazars have been the targets of many recent or ongoing monitoring programmes. The resulting multi-wavelength data archives are ideal for studying the quiescent…
Modeling the Magnetic Field in the Galactic Disk using New Rotation Measure Observations from the Very Large Array
Cameron Van Eck, Jo-Anne Brown, Jeroen Stil +8
We have determined 194 Faraday rotation measures (RMs) of polarized extragalactic radio sources using new, multi-channel polarization observations at frequencies around 1.4 GHz fro…
The Hydrogen Intensity and Real-time Analysis eXperiment: 256-Element Array Status and Overview
Devin Crichton, Moumita Aich, Adam Amara +97
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a radio interferometer array currently in development, with an initial 256-element array to be deployed at the S…
MeerKLASS: MeerKAT Large Area Synoptic Survey
Mario G. Santos, Michelle Cluver, Matt Hilton +35
We discuss the ground-breaking science that will be possible with a wide area survey, using the MeerKAT telescope, known as MeerKLASS (MeerKAT Large Area Synoptic Survey). The curr…
A High Resolution Survey of the Galactic Plane at 408 MHz
Albert Tung, Roland Kothes, Tom Landecker +6
The interstellar medium is a complex 'ecosystem' with gas constituents in the atomic, molecular, and ionized states, dust, magnetic fields, and relativistic particles. The Canadian…
The superMIGHTEE project: MeerKAT and GMRT Together to Unveil the Deep Radio Sky
Dharam V. Lal, Russ Taylor, Srikrishna Sekhar +3
An international team of researchers has come together to undertake an ultra-broadband exploration of the deep radio sky. The superMIGHTEE project combines data from the MIGHTEE pr…
A Census of the Deep Radio Sky with the VLA I: 10GHz Survey of the GOODS-N field
Eric F. Jiménez-Andrade, Eric J. Murphy, Emmanuel Momjian +4
We present the first high-resolution, high-frequency radio continuum survey that fully maps an extragalactic deep field: the 10GHz survey of the Great Observatories Origins Deep Su…