Search Results for author: B. W. Stappers

Found 9 papers, 5 papers with code

Real-time triggering capabilities for Fast Radio Bursts at the MeerKAT telescope

no code implementations9 Dec 2020 F. Jankowski, M. Berezina, B. W. Stappers, E. D. Barr, M. C. Bezuidenhout, M. Caleb, L. N. Driessen, M. Malenta, V. Morello, K. M. Rajwade, S. Sanidas, M. P. Surnis

Rapid data processing is essential for us to be able to retain high-resolution data of the bursts, to localise them, and to minimise the delay for follow-up observations.

Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena

Optimal periodicity searching: Revisiting the Fast Folding Algorithm for large-scale pulsar surveys

2 code implementations7 Apr 2020 V. Morello, E. D. Barr, B. W. Stappers, E. F. Keane, A. G. Lyne

Here we derive from first principles that an FFA search closely approaches the theoretical optimum sensitivity to all periodic signals; it is analytically shown to be significantly more sensitive than the standard FFT+IHS method, regardless of pulse period and duty cycle.

Instrumentation and Methods for Astrophysics

MKT J170456.2-482100: the first transient discovered by MeerKAT

1 code implementation18 Nov 2019 L. N. Driessen, I. McDonald, D. A. H. Buckley, M. Caleb, E. J. Kotze, S. B. Potter, K . M. Rajwade, A. Rowlinson, B. W. Stappers, E. Tremou, P. A. Woudt, R. P. Fender, R. Armstrong, P. Groot, I. Heywood, A. Horesh, A. J. van der Horst, E. Koerding, V. A. McBride, J. C. A. Miller-Jones, K. P. Mooley, R. A. M. J. Wijers

Spectroscopic analysis shows that TYC 8332-2529-1 is in a binary, and has a line-of-sight radial velocity amplitude of $43\,\mathrm{km\, s^{-1}}$.

Solar and Stellar Astrophysics High Energy Astrophysical Phenomena

The High Time Resolution Universe survey XIV: Discovery of 23 pulsars through GPU-accelerated reprocessing

1 code implementation12 Nov 2018 V. Morello, E. D. Barr, S. Cooper, M. Bailes, S. Bates, N. D. R. Bhat, M. Burgay, S. Burke-Spolaor, A. D. Cameron, D. J. Champion, R. P. Eatough, C. M. L. Flynn, A. Jameson, S. Johnston, M. J. Keith, E. F. Keane, M. Kramer, L. Levin, C. Ng, E. Petroff, A. Possenti, B. W. Stappers, W. van Straten, C. Tiburzi

We have also introduced an outlier detection algorithm for efficient radio-frequency interference (RFI) mitigation on folded data, a new approach that enabled the discovery of pulsars previously masked by RFI.

Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena

A Study on Classification in Imbalanced and Partially-Labelled Data Streams

no code implementations30 Jul 2013 R. J. Lyon, J. M. Brooke, J. D. Knowles, B. W. Stappers

The domain of radio astronomy is currently facing significant computational challenges, foremost amongst which are those posed by the development of the world's largest radio telescope, the Square Kilometre Array (SKA).

Astronomy General Classification

The High Time Resolution Universe Pulsar Survey I: System configuration and initial discoveries

1 code implementation30 Jun 2010 M. J. Keith, A. Jameson, W. van Straten, M. Bailes, S. Johnston, M. Kramer, A. Possenti, S. D. Bates, N. D. R. Bhat, M. Burgay, S. Burke-Spolaor, N. D'Amico, L. Levin, P. L. McMahon, S. Milia, B. W. Stappers

Installation of a digital backend allows us to record 400 MHz of bandwidth for each beam, split into 1024 channels and sampled every 64 us.

High Energy Astrophysical Phenomena Solar and Stellar Astrophysics

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