169 citations · 823 across the 40 of their papers we have counts for
40 papers
Upper Limits on Radio Emission from the K2-18 System
Kelvin Wandia, Chenoa Tremblay, Michael A. Garrett +11
Stellar and planetary magnetic fields play a crucial role in the habitability of a planet and the integrity of its atmosphere. The recently claimed detection of biosignatures, meth…
A Catalog of Filaments in the Central Molecular Zone
Richard G. Arendt, F. Yusef-Zadeh, I. Heywood
We present a catalog of 1.28 GHz radio filaments observed by MeerKAT over the innermost 200 pc of the Galaxy (roughly ), which includes the central molecular zone (CMZ).…
MIGHTEE: A first look at MIGHTEE quasars
Sarah V. White, Ivan Delvecchio, Nathan Adams +6
In this work we study a robust, -band complete, spectroscopically-confirmed sample of 104 unobscured (Type-1) quasars within the COSMOS and XMM-LSS fields of the MeerKAT Inter…
The Accretion-Ejection Connection in the Black Hole X-ray Binary MAXI J1820070
Joe S. Bright, Rob Fender, David M. Russell +12
The black hole X-ray binary MAXI J1820070 began its first recorded outburst in March 2018, and remained an active radio, X-ray, and optical source for over four years. Due to th…
A spatially-resolved spectral analysis of giant radio galaxies with MeerKAT
K. K. L. Charlton, J. Delhaize, K. Thorat +13
In this study we report spatially resolved, wideband spectral properties of three giant radio galaxies (GRGs) in the COSMOS field: MGTC J095959.63+024608.6 , MGTC J100016.84+015133…
MIGHTEE: The Continuum Survey Data Release 1
C. L. Hale, I. Heywood, M. J. Jarvis +9
The MeerKAT International GHz Tiered Extragalactic Exploration Survey (MIGHTEE) is one of the large survey projects using the MeerKAT telescope, covering four fields that have a we…
MeerKAT observations of Procyon at 815.5 MHz
Ian Heywood, Andrew P. V. Siemion, Daniel Czech +5
We have conducted observations of the nearby (11.46 ly) star system Procyon, using MeerKAT's UHF (544-1087 MHz) receivers. We produce full-Stokes time and frequency integrated cont…
MIGHTEE-HI: deep spectral line observations of the COSMOS field
I. Heywood, A. A. Ponomareva, N. Maddox +16
The MIGHTEE survey utilises the South African MeerKAT radio telescope to observe four extragalactic deep fields, with the aim of advancing our understanding of the formation and ev…
Deep extragalactic HI survey of the COSMOS field with FAST
Hengxing Pan, Matt J. Jarvis, Ming Zhu +9
We present a deep HI survey at L-band conducted with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) over the COSMOS field. This survey is strategically designed t…
On the implausible physical implications of a claimed lensed neutral hydrogen detection at redshift z = 1.3
Roger P. Deane, Tariq Blecher, Danail Obreschkow +1
The Square Kilometre Array mid-frequency array will enable high-redshift detections of neutral hydrogen (HI) emission in galaxies, providing important constraints on the evolution…
Neutral hydrogen lensing simulations in the Hubble Frontier Fields
Tariq Blecher, Roger Deane, Danail Obreschkow +1
Cold gas evolution ties the formation of dark matter halos to the star formation history of the universe. A primary component of cold gas, neutral atomic hydrogen (HI), can be trac…
MeerKAT observations of starburst galaxies and AGNs within the core of XMMXCS J2215.9-1738 at = 1.46
D. Y. Klutse, M. Hilton, I. Heywood +4
We present the first detailed radio study of the galaxy cluster XMMXCS J2215.9-1738 at = 1.46 using MeerKAT -band (1.3 GHz) observations. We combine our radio observation wi…
Detection of large-scale synchrotron radiation from the molecular envelope of the Sgr B cloud complex at the Galactic center
F. Yusef-Zadeh, M. Wardle, R. Arendt +6
We present highly sensitive measurements taken with MeerKAT at 1280 MHz as well as archival GBT, MWA and VLA images at 333, 88 and 74 MHz. We report the detection of synchrotron ra…
FRB 20121102A: images of the bursts and the varying radio counterpart
L. Rhodes, M. Caleb, B. W. Stappers +4
As more Fast Radio Bursts (FRBs) are being localised, we are learning that some fraction have persistent radio sources (PRSs). Such a discovery motivates an improvement in our unde…
A Radio Flare in the Long-Lived Afterglow of the Distant Short GRB 210726A: Energy Injection or a Reverse Shock from Shell Collisions?
Genevieve Schroeder, Lauren Rhodes, Tanmoy Laskar +32
We present the discovery of the radio afterglow of the short -ray burst (GRB) 210726A, localized to a galaxy at a photometric redshift of . While radio observations c…
A new pulsar candidate in 47 Tucanae discovered with MeerKAT imaging
Ian Heywood
MeerKAT imaging of the globular cluster 47 Tucanae (47 Tuc) reveals 1.28 GHz continuum emission at the locations of 20 known millisecond pulsars (MSPs). We use time series and spec…
The Population of the Galactic Center Filaments: Position Angle Distribution Reveal a Degree-scale Collimated Outflow from Sgr A* along the Galactic Plane
F. Yusef-Zadeh, R. G. Arendt, M. Wardle +1
We have examined the distribution of the position angle (PA) of the Galactic center filaments with lengths and as well as their length distribution as a functi…
Bursts from Space: MeerKAT - The first citizen science project dedicated to commensal radio transients
Alex Andersson, Chris Lintott, Rob Fender +40
The newest generation of radio telescopes are able to survey large areas with high sensitivity and cadence, producing data volumes that require new methods to better understand the…
Precise Measurements of Self-absorbed Rising Reverse Shock Emission from Gamma-ray Burst 221009A
Joe S. Bright, Lauren Rhodes, Wael Farah +18
The deaths of massive stars are sometimes accompanied by the launch of highly relativistic and collimated jets. If the jet is pointed towards Earth, we observe a "prompt" gamma-ray…
A sub-arcsec localised fast radio burst with a significant host galaxy dispersion measure contribution
M. Caleb, L. N. Driessen, A. C. Gordon +29
We present the discovery of FRB 20210410D, with the MeerKAT radio interferometer in South Africa, as part of the MeerTRAP commensal project. FRB 20210410D has a dispersion measure…
Search and characterization of remnant radio galaxies in the XMMLSS deep field
Sushant Dutta, Veeresh Singh, C. H. Ishwara Chandra +3
The remnant phase of a radio galaxy is characterized by the cessation of AGN activity resulting in the stoppage of jets supplying plasma to radio lobes. In this paper, we present t…
MeerKAT follow-up of enigmatic GLEAM 4-Jy (G4Jy) sources
Precious K. Sejake, Sarah V. White, Ian Heywood +4
We present the results from studying 140 radio sources in the GLEAM (GaLactic and Extragalactic All-sky MWA [Murchison Widefield Array]) 4-Jy (G4Jy) Sample. These sources were foll…
The population of Galactic centre filaments III: candidate radio and stellar sources
F. Yusef-Zadeh, R. G. Arendt, M. Wardle +2
Recent MeerKAT radio continuum observations of the Galactic center at 20 cm show a large population of nonthermal radio filaments (NRFs) in the inner few hundred pc of the Galaxy.…
MIGHTEE: the nature of the radio-loud AGN population
I. H. Whittam, M. J. Jarvis, C. L. Hale +24
We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field…