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91̽»¨
sky and dish

Aris Karastergiou

Professor of Astrophysics and Fellow at St Edmund Hall

Research theme

  • Astronomy and astrophysics

Sub department

  • Astrophysics

Research groups

  • MeerKAT
  • Pulsars, transients and relativistic astrophysics
  • The Square Kilometre Array (SKA)
  • Gamma-ray astronomy
Aris.Karastergiou@physics.ox.ac.uk
Telephone: 01865 (2)73642
Denys Wilkinson Building, room 603C
  • About
  • Publications

Machine Learning for Pulsar Detection

Proceedings of the International Astronomical Union Cambridge University Press (CUP) 13:S337 (2017) 372-373

Authors:

Rebecca McFadden, Aris Karastergiou, Stephen Roberts

Pulsar Searches with the SKA

Cambridge University Press (CUP), 2017

Authors:

L Levin, W Armour, C Baffa, E Barr, S Cooper, R Eatough, A Ensor, E Giani, A Karastergiou, R Karuppusamy, M Keith, M Kramer, R Lyon, M Mackintosh, M Mickaliger, R van Nieuwpoort, M Pearson, T Prabu, J Roy, O Sinnen, L Spitler, H Spreeuw, BW Stappers, W van Straten, C Williams, H Wang, K Wiesner

The Noisy Ageing of Slow Pulsars: New Thoughts on the Evolution of the Pulsar Population

Proceedings of the International Astronomical Union Cambridge University Press (CUP) 13:S337 (2017) 100-103

Authors:

Aris Karastergiou, Simon Johnston

ALFABURST: A realtime fast radio burst monitor for the Arecibo telescope

The Fourteenth Marcel Grossmann Meeting World Scientific Publishing Co (2017) 2872-2876

Authors:

Jayanth Chennamangalam, Aris Karastergiou, David MacMahon, Wesley G Armour, Jeff Cobb, Duncan Lorimer, Kaustubh Rajwade, Andrew Siemion, Dan Werthimer, Christopher Williams

Abstract:

Fast radio bursts (FRBs) constitute an emerging class of fast radio transient whose origin continues to be a mystery. Realizing the importance of increasing coverage of the search parameter space, we have designed, built, and deployed a realtime monitor for FRBs at the 305-m Arecibo radio telescope. Named `ALFABURST', it is a commensal instrument that is triggered whenever the 1.4 GHz seven-beam Arecibo L-Band Feed Array (ALFA) receiver commences operation. The ongoing commensal survey we are conducting using ALFABURST has an instantaneous field of view of 0.02 sq. deg. within the FWHM of the beams, with the realtime software configurable to use up to 300 MHz of bandwidth. We search for FRBs with dispersion measure up to 2560 cm^-3 pc and pulse widthsranging from 0.128 ms to 16.384 ms. Commissioning observations performed over the past few months have demonstrated the capability of the instrument in detecting single pulses from known pulsars. In this paper, I describe the instrument and the associated survey.

Pulsar braking and the P–$\dot{P}$ diagram

Monthly Notices of the Royal Astronomical Society 467:3 (2017) 3493-3499

Authors:

S Johnston, A Karastergiou

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