937 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Rhodes UniversityZA159 papers
- Netherlands Institute for Radio AstronomyNL97 papers
- Commonwealth Scientific and Industrial Research OrganisationAU91 papers
- Center for Astrophysics Harvard & SmithsonianUS82 papers
- International Centre for Radio Astronomy ResearchAU70 papers
- University of the Western CapeZA69 papers
- ARC Centre of Excellence for All-sky AstrophysicsAU67 papers
- National Radio Astronomy ObservatoryUS66 papers
- Australian National UniversityAU62 papers
- University of ManchesterGB60 papers
- University of OxfordGB60 papers
- University of GroningenNL57 papers
15 papers · 1 filter
A Survey for Ground-State OH Masers Toward a Sample of Herbig-Haro Objects
A. de Witt, M. Bietenholz, R. Booth +1
Herbig-Haro objects are regions of shocked gas and dust which are produced when collimated outflows from a protostar interact with the surrounding dense gas. They have many similar…
Foreground contamination in Ly-alpha intensity mapping during the epoch of reionization
Yan Gong, Marta Silva, Asantha Cooray +1
The intensity mapping of Ly-alpha emission during the epoch of reionization (EoR) will be contaminated by foreground emission lines from lower redshifts. We calculate the mean inte…
Design, Environmental and Sustainability Constraints of new African Observatories: The example of the Mozambique Radio Astronomy Observatory
Domingos Barbosa, Claudio Paulo, Valerio A. R. M. Ribeiro +9
The Mozambique Radio Astronomy Observatory (MRAO) will be a first milestone towards development of radioastronomy in Mozambique. Development of MRAO will constitute a preparation s…
A survey for transients and variables with the Murchison Widefield Array 32-tile prototype at 154 MHz
M. E. Bell, T. Murphy, D. L. Kaplan +55
We present a search for transient and variable radio sources at 154 MHz with the Murchison Widefield Array 32-tile prototype. Fifty-one images were obtained that cover a field of v…
Periodicity in Class II methanol masers in high mass star forming regions
S. Goedhart, J. P. Maswanganye, M. J. Gaylard +1
We report the results of 10 years of monitoring of six regularly varying 6.7 GHz methanol masers using the Hartebeesthoek 26m telescope. Observations were done at intervals of 1--2…
Detecting cosmic rays with the LOFAR radio telescope
P. Schellart, A. Nelles, S. Buitink +102
The low frequency array (LOFAR), is the first radio telescope designed with the capability to measure radio emission from cosmic-ray induced air showers in parallel with interferom…
Absolutely calibrated radio polarimetry of the inner Galaxy at 2.3 GHz and 4.8 GHz
X. H. Sun, B. M. Gaensler, E. Carretti +4
We present high sensitivity and absolutely calibrated images of diffuse radio polarisation at a resolution of about 10 arcmin covering the range 10 degr <l<34 degr and |b|<5 degr a…
The giant lobes of Centaurus A observed at 118 MHz with the Murchison Widefield Array
B. McKinley, F. Briggs, B. M. Gaensler +50
We present new wide-field observations of Centaurus A (Cen A) and the surrounding region at 118 MHz with the Murchison Widefield Array (MWA) 32-tile prototype, with which we invest…
Studying Galactic interstellar turbulence through fluctuations in synchrotron emission: First LOFAR Galactic foreground detection
M. Iacobelli, M. Haverkorn, E. Orrú +85
The characteristic outer scale of turbulence and the ratio of the random to ordered components of the magnetic field are key parameters to characterise magnetic turbulence in the i…
A 325-MHz GMRT survey of the Herschel-ATLAS/GAMA fields
T. Mauch, H. -R. Klöckner, S. Rawlings +5
We describe a 325-MHz survey, undertaken with the Giant Metrewave Radio Telescope (GMRT), which covers a large part of the three equatorial fields at 9, 12 and 14.5 h of right asce…
KAT-7 Science Verification: Using HI Observations of NGC 3109 to Understand its Kinematics and Mass Distribution
C. Carignan, B. S. Frank, K. M. Hess +4
HI observations of the Magellanic-type spiral NGC 3109, obtained with the seven dish Karoo Array Telescope (KAT-7), are used to analyze its mass distribution. Our results are compa…
A return to strong radio flaring by Circinus X-1 observed with the Karoo Array Telescope test array KAT-7
R. P. Armstrong, R. P. Fender, G. D. Nicolson +10
Circinus X-1 is a bright and highly variable X-ray binary which displays strong and rapid evolution in all wavebands. Radio flaring, associated with the production of a relativisti…
Weak Lensing Measurements in Simulations of Radio Images
Prina Patel, Filipe B. Abdalla, David J. Bacon +3
We present a study of weak lensing shear measurements for simulated galaxy images at radio wavelengths. We construct a simulation pipeline into which we can input galaxy images of…
LOFAR detections of low-frequency radio recombination lines towards Cassiopeia A
Ashish Asgekar, J. B. R. Oonk, S. Yatawatta +89
Cassiopeia A was observed using the Low-Band Antennas of the LOw Frequency ARray (LOFAR) with high spectral resolution. This allowed a search for radio recombination lines (RRLs) a…
Synchronous X-ray and Radio Mode Switches: a Rapid Global Transformation of the Pulsar Magnetosphere
W. Hermsen, J. W. T. Hessels, L. Kuiper +8
Pulsars emit low-frequency radio waves through to high-energy gamma-rays that are generated anywhere from the surface out to the edges of the magnetosphere. Detecting correlated mo…