1k citations · 2.2k across the 19 of their papers we have counts for
22 papers
The Radio Sky at Meter Wavelengths: m-Mode Analysis Imaging with the Owens Valley Long Wavelength Array
Michael W. Eastwood, Marin M. Anderson, Ryan M. Monroe +17
A host of new low-frequency radio telescopes seek to measure the 21-cm transition of neutral hydrogen from the early universe. These telescopes have the potential to directly probe…
Design and characterization of the Large-Aperture Experiment to Detect the Dark Age (LEDA) radiometer systems
D. C. Price, L. J. Greenhill, A. Fialkov +24
The Large-Aperture Experiment to Detect the Dark Age (LEDA) was designed to detect the predicted O(100)mK sky-averaged absorption of the Cosmic Microwave Background by Hydrogen in…
Bifrost: a Python/C++ Framework for High-Throughput Stream Processing in Astronomy
Miles D. Cranmer, Benjamin R. Barsdell, Danny C. Price +11
Radio astronomy observatories with high throughput back end instruments require real-time data processing. While computing hardware continues to advance rapidly, development of rea…
A survey of FRB fields: Limits on repeatability
E. Petroff, S. Johnston, E. F. Keane +13
Several theories exist to explain the source of the bright, millisecond duration pulses known as fast radio bursts (FRBs). If the progenitors of FRBs are non-cataclysmic, such as g…
HDFITS: porting the FITS data model to HDF5
D. C. Price, B. R. Barsdell, L. J. Greenhill
The FITS (Flexible Image Transport System) data format has been the de facto data format for astronomy-related data products since its inception in the late 1970s. While the FITS f…
A real-time fast radio burst: polarization detection and multiwavelength follow-up
E. Petroff, M. Bailes, E. D. Barr +32
Fast radio bursts (FRBs) are one of the most tantalizing mysteries of the radio sky; their progenitors and origins remain unknown and until now no rapid multiwavelength follow-up o…
Is HDF5 a good format to replace UVFITS?
Danny C. Price, Benjamin R. Barsdell, Lincoln J. Greenhill
The FITS (Flexible Image Transport System) data format was developed in the late 1970s for storage and exchange of astronomy-related image data. Since then, it has become a standar…
Digital Signal Processing using Stream High Performance Computing: A 512-input Broadband Correlator for Radio Astronomy
J. Kocz, L. J Greenhill, B. R. Barsdell +16
A "large-N" correlator that makes use of Field Programmable Gate Arrays and Graphics Processing Units has been deployed as the digital signal processing system for the Long Wavelen…
Optimizing performance per watt on GPUs in High Performance Computing: temperature, frequency and voltage effects
D. C. Price, M. A. Clark, B. R. Barsdell +2
The magnitude of the real-time digital signal processing challenge attached to large radio astronomical antenna arrays motivates use of high performance computing (HPC) systems. Th…
A Scalable Hybrid FPGA/GPU FX Correlator
J. Kocz, L. J. Greenhill, B. R. Barsdell +8
Radio astronomical imaging arrays comprising large numbers of antennas, O(10^2-10^3) have posed a signal processing challenge because of the required O(N^2) cross correlation of si…
A Population of Fast Radio Bursts at Cosmological Distances
D. Thornton, B. Stappers, M. Bailes +17
Searches for transient astrophysical sources often reveal unexpected classes of objects that are useful physical laboratories. In a recent survey for pulsars and fast transients we…
The High Time Resolution Universe Pulsar Survey VIII: The Galactic millisecond pulsar population
L. Levin, M. Bailes, B. R. Barsdell +17
We have used millisecond pulsars (MSPs) from the southern High Time Resolution Universe (HTRU) intermediate latitude survey area to simulate the distribution and total population o…
The High Time Resolution Universe Survey VI: An Artificial Neural Network and Timing of 75 Pulsars
S. D. Bates, M. Bailes, B. R. Barsdell +19
We present 75 pulsars discovered in the mid-latitude portion of the High Time Resolution Universe survey, 54 of which have full timing solutions. All the pulsars have spin periods…
Accelerating incoherent dedispersion
Benjamin R. Barsdell, Matthew Bailes, David G. Barnes +1
Incoherent dedispersion is a computationally intensive problem that appears frequently in pulsar and transient astronomy. For current and future transient pipelines, dedispersion c…
Three-dimensional shapelets and an automated classification scheme for dark matter haloes
C. J. Fluke, A. L. Malec, P. D. Lasky +1
We extend the two-dimensional Cartesian shapelet formalism to d-dimensions. Concentrating on the three-dimensional case, we derive shapelet-based equations for the mass, centroid,…
Spotting Radio Transients with the help of GPUs
Benjamin R. Barsdell, Matthew Bailes, David G. Barnes +1
Exploration of the time-domain radio sky has huge potential for advancing our knowledge of the dynamic universe. Past surveys have discovered large numbers of pulsars, rotating rad…
Fitting Galaxies on GPUs
Benjamin R. Barsdell, David G. Barnes, Christopher J. Fluke
Structural parameters are normally extracted from observed galaxies by fitting analytic light profiles to the observations. Obtaining accurate fits to high-resolution images is a c…
Astrophysical Supercomputing with GPUs: Critical Decisions for Early Adopters
Christopher J. Fluke, David G. Barnes, Benjamin R. Barsdell +1
General purpose computing on graphics processing units (GPGPU) is dramatically changing the landscape of high performance computing in astronomy. In this paper, we identify and inv…
Analysing Astronomy Algorithms for GPUs and Beyond
Benjamin R. Barsdell, David G. Barnes, Christopher J. Fluke
Astronomy depends on ever increasing computing power. Processor clock-rates have plateaued, and increased performance is now appearing in the form of additional processor cores on…
Computational advances in gravitational microlensing: a comparison of CPU, GPU, and parallel, large data codes
N. F. Bate, C. J. Fluke, B. R. Barsdell +2
To assess how future progress in gravitational microlensing computation at high optical depth will rely on both hardware and software solutions, we compare a direct inverse ray-sho…
Advanced Architectures for Astrophysical Supercomputing
Benjamin R. Barsdell, David G. Barnes, Christopher J. Fluke
Astronomers have come to rely on the increasing performance of computers to reduce, analyze, simulate and visualize their data. In this environment, faster computation can mean mor…
Teraflop per second gravitational lensing ray-shooting using graphics processing units
Alexander C. Thompson, Christopher J. Fluke, David G. Barnes +1
Gravitational lensing calculation using a direct inverse ray-shooting approach is a computationally expensive way to determine magnification maps, caustic patterns, and light-curve…