no code implementations • 21 Dec 2020 • C. Tiburzi, G. M. Shaifullah, C. G. Bassa, P. Zucca, J. P. W. Verbiest, N. K. Porayko, E. van der Wateren, R. A. Fallows, R. A. Main, G. H. Janssen, J. M. Anderson, A-. S. Bak Nielsen, J. Y. Donner, E. F. Keane, J. Künsemöller, S. Osłowski, J-. M. Grießmeier, M. Serylak, M. Brüggen, B. Ciardi, R. -J. Dettmar, M. Hoeft, M. Kramer, G. Mann, C. Vocks
In a previous paper we studied the Solar-wind (SW) models used in pulsar timing to mitigate the excess of DM annually induced by the SW, and found these to be insufficient for high-precision pulsar timing.
High Energy Astrophysical Phenomena
2 code implementations • 7 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
1 code implementation • 9 Oct 2019 • V. Morello, E. F. Keane, T. Enoto, S. Guillot, W. C. G. Ho, A. Jameson, M. Kramer, B. W. Stappers, M. Bailes, E. D. Barr, S. Bhandari, M. Caleb, C. M. L. Flynn, F. Jankowski, S. Johnston, W. van Straten, Z. Arzoumanian, S. Bogdanov, K. C. Gendreau, C. Malacaria, P. S. Ray, R. A. Remillard
We report the discovery of PSR J2251$-$3711, a radio pulsar with a spin period of 12. 1 seconds, the second longest currently known.
High Energy Astrophysical Phenomena
no code implementations • 22 Jan 2019 • D. C. Price, G. Foster, M. Geyer, W. van Straten, V. Gajjar, G. Hellbourg, A. Karastergiou, E. F. Keane, A. P. V. Siemion, I. Arcavi, R. Bhat, M. Caleb, S-W. Chang, S. Croft, D. DeBoer, I. de Pater, J. Drew, J. E. Enriquez, W. Farah, N. Gizani, J. A. Green, H. Isaacson, J. Hickish, A. Jameson, M. Lebofsky, D. H. E. MacMahon, A. Möller, C. A. Onken, E. Petroff, D. Werthimer, C. Wolf, S. P. Worden, Y. G. Zhang
Here, we report on the detection and verification of Fast Radio Burst FRB 180301, which occurred on UTC 2018 March 1 during the Breakthrough Listen observations with the Parkes telescope.
High Energy Astrophysical Phenomena
1 code implementation • 12 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
1 code implementation • 14 Jun 2017 • E. F. Keane, E. D. Barr, A. Jameson, V. Morello, M. Caleb, S. Bhandari, E. Petroff, A. Possenti, M. Burgay, C. Tiburzi, M. Bailes, N. D. R. Bhat, S. Burke-Spolaor, R. P. Eatough, C. Flynn, F. Jankowski, S. Johnston, M. Kramer, L. Levin, C. Ng, W. van Straten, V. Venkatraman Krishnan
We report on the observational setup, data analysis, multi-wavelength/messenger connections, survey sensitivities to pulsars and fast radio bursts and the impact of radio frequency interference.
Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena
1 code implementation • 13 Jun 2014 • V. Morello, E. D. Barr, M. Bailes, C. M. Flynn, E. F. Keane, W. van Straten
We describe SPINN (Straightforward Pulsar Identification using Neural Networks), a high-performance machine learning solution developed to process increasingly large data outputs from pulsar surveys.
Instrumentation and Methods for Astrophysics
