Gamma-ray astronomy

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Orbital and superorbital variability of LS I +61 303 at low radio frequencies with GMRT and LOFAR

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 456:2 (2016) 1791-1802

Authors:

B Marcote, M Ribó, JM Paredes, CH Ishwara-Chandra, JD Swinbank, JW Broderick, S Markoff, R Fender, RAMJ Wijers, GG Pooley, AJ Stewart, ME Bell, RP Breton, D Carbone, S Corbel, J Eislöffel, H Falcke, J-M Grie smeier, M Kuniyoshi, M Pietka, A Rowlinson, M Serylak, AJ van der Horst, J van Leeuwen, MW Wise, P Zarka
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THE OPTICAL–UV EMISSIVITY OF QUASARS: DEPENDENCE ON BLACK HOLE MASS AND RADIO LOUDNESS

The Astrophysical Journal Letters American Astronomical Society 818:1 (2016) l1

Authors:

Francesco Shankar, Giorgio Calderone, Christian Knigge, James Matthews, Rachel Buckland, Krzysztof Hryniewicz, Gregory Sivakoff, Xinyu Dai, Kayleigh Richardson, Jack Riley, James Gray, Fabio La Franca, Diego Altamirano, Judith Croston, Poshak Gandhi, Sebastian Hönig, Ian McHardy, Matthew Middleton
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Test bench for front end electronic of the GCT camera for the Cherenkov Telescope Array

Journal of Instrumentation IOP Publishing 11:02 (2016) c02006-c02006

Authors:

A De Franco, G Cotter
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Wide-band, low-frequency pulse profiles of 100 radio pulsars with LOFAR⋆

Astronomy & Astrophysics EDP Sciences 586 (2016) a92

Authors:

M Pilia, JWT Hessels, BW Stappers, VI Kondratiev, M Kramer, J van Leeuwen, P Weltevrede, AG Lyne, K Zagkouris, TE Hassall, AV Bilous, RP Breton, H Falcke, J-M Grießmeier, E Keane, A Karastergiou, M Kuniyoshi, A Noutsos, S Osłowski, M Serylak, C Sobey, S ter Veen, A Alexov, J Anderson, A Asgekar, IM Avruch, ME Bell, MJ Bentum, G Bernardi, L Bîrzan, A Bonafede, F Breitling, JW Broderick, M Brüggen, B Ciardi, S Corbel, E de Geus, A de Jong, A Deller, S Duscha, J Eislöffel, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, AW Gunst, JP Hamaker, G Heald, A Horneffer, P Jonker, E Juette, G Kuper, P Maat, G Mann, S Markoff, R McFadden, D McKay-Bukowski, JCA Miller-Jones, A Nelles, H Paas, M Pandey-Pommier, M Pietka, R Pizzo, AG Polatidis, W Reich, H Röttgering, A Rowlinson, D Schwarz, O Smirnov, M Steinmetz, A Stewart, JD Swinbank, M Tagger, Y Tang, C Tasse, S Thoudam, MC Toribio, AJ van der Horst, R Vermeulen, C Vocks, RJ van Weeren, RAMJ Wijers, R Wijnands, SJ Wijnholds, O Wucknitz, P Zarka
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MeerTime - the MeerKAT Key science program on pulsar timing

Proceedings of Science (2016)

Authors:

M Bailes, E Barr, NDR Bhat, J Brink, S Buchner, M Burgay, F Camilo, DJ Champion, J Hessels, GH Jansseng, A Jameson, S Johnston, A Karastergiou, R Karuppusamy, V Kaspi, MJ Keith, M Kramer, MA McLaughlin, K Moodley, S Oslowski, A Possenti, SM Ransom, FA Rasio, J Sievers, M Serylak, BW Stappers, IH Stairs, G Theureau, W van Straten, P Weltevrede, N Wex

Abstract:

© Copyright owned by the author(s). The MeerKAT telescope represents an outstanding opportunity for radio pulsar timing science with its unique combination of a large collecting area and aperture efficiency (effective area ∼7500 m2), system temperature (T < 20K), high slew speeds (1-2 deg/s), large bandwidths (770 MHz at 20cm wavelengths), southern hemisphere location (latitude ∼ −30◦) and ability to form up to four sub-arrays. The MeerTime project is a five-year program on the MeerKAT array by an international consortium that will regularly time over 1000 radio pulsars to perform tests of relativistic gravity, search for the gravitational wave signature induced by supermassive black hole binaries in the timing residuals of millisecond pulsars, explore the interiors of neutron stars through a pulsar glitch monitoring programme, explore the origin and evolution of binary pulsars, monitor the swarms of pulsars that inhabit globular clusters and monitor radio magnetars. MeerTime will complement the TRAPUM project and time pulsars TRAPUM discovers in surveys of the galactic plane, globular clusters and the galactic centre. In addition to these primary programmes, over 1000 pulsars will have their arrival times monitored and the data made immediately public. The MeerTime pulsar backend comprises two server-class machines each of which possess four Graphics Processing Units. Up to four pulsars can be coherently dedispersed simultaneously up to dispersion measures of over 1000 pc cm−3. All data will be provided in psrfits format. The MeerTime backend will be capable of producing coherently dedispersed filterbank data for timing multiple pulsars in the cores of globular clusters that is useful for pulsar searches of tied array beams. The first real-time pulsar profiles have been obtained as part of the MeerKAT commissioning process, and useful scientific data will start to come online through 2017. All MeerTime data will ultimately be made available for public use, and any published results will include the arrival times and profiles used in the results.