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The environment and host haloes of the brightest z~6 Lyman-break galaxies

Monthly Notices of the Royal Astronomical Society Oxford University Press 477:3 (2018) 3760-3774

Authors:

Peter Hatfield, Rebecca Bowler, Matthew Jarvis, Catherine Hale

Abstract:

By studying the large-scale structure of the bright high-redshift Lyman-break galaxy (LBG) population it is possible to gain an insight into the role of environment in galaxy formation physics in the early Universe. We measure the clustering of a sample of bright ($-22.7
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Revival of the Magnetar PSR J1622-4950: Observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR

ASTROPHYSICAL JOURNAL 856:2 (2018) ARTN 180

Authors:

F Camilo, P Scholz, M Serylak, S Buchner, M Merryfield, VM Kaspi, RF Archibald, M Bailes, A Jameson, W van Straten, J Sarkissian, JE Reynolds, S Johnston, G Hobbs, TD Abbott, RM Adam, GB Adams, T Alberts, R Andreas, KMB Asad, DE Baker, T Baloyi, EF Bauermeister, T Baxana, TGH Bennett, G Bernardi, D Booisen, RS Booth, DH Bothar, L Boyana, LRS Brederode, JP Burger, T Cheetham, J Conradie, JP Conradie, DB Davidson, G De Bruin, B de Swardt, C de Villiers, DIL de Villiers, MS de Villiers, W de Villiers, C De Waal, MA Dikgale, G du Toit, LJ du Toit, SWP Esterhuysel, B Fanaroff, S Fataari, AR Foley, G Foster, D Fourier, R Gamatham, T Gatsi, R Geschke, S Goedhart, TL Grobler, SC Gumede, MJ Hlakola, A Hokwana, DH Hoorn, D Horn, J Horrell, B Hugo, A Isaacson, O Jacobs, JPJ van Rensburg, JL Jonas, B Jordaan, A Joubert, F Joubert, GIG Jozsa, R Julie, CC Julius, F Kapp, A Karastergiou, F Karels, M Kariseb, R Karuppusamy, V Kasper, EC Knox-Davies, D Koch, PPA Kotze, A Krebs, N Krick, H Kriel, T Kusel, S Lamoor, R Lehmensiek, D Liebenberg, I Liebenberg, RT Lord, B Lunsky, N Mabombo, T Macdonald, P Macfarlane, K Madisa, L Mafhungo, LG Magnus, C Magozore, O Mahgoub, JPL Main, S Makhathini, JA Malan, P Malgas, JR Manley, M Manzini, L Marais, N Marais, SJ Marais, M Maree, A Martens, SD Matshawule, N Matthysen, T Mauch, LD Mc Nally, B Merry, RP Millenaar, C Mjikelo, N Mikhabela, N Mnyandu, IT Moeng, OJ Mokone, TE Monama, K Montshiwa, V Moss, M Mphego, W New, B Ngcebetsha, K Ngoasheng, H Niehaus, P Ntuli, A Nzama, F Obies, M Obrocka, MT Ockards, C Olyn, N Oozeer, AJ Otto, Y Padayachee, S Passmoor, AA Patel, S Paula, A Peens-Hough, B Pholoholo, P Prozesky, S Rakoma, AJT Ramaila, I Rammala, ZR Ramudzuli, M Rasivhaga, S Ratcliffe, HC Reader, R Renil, L Richter, A Robyntjies, D Rosekrans, A Rust, S Salle, N Sambu, CTG Schollar, L Schwardt, S Seranyane, G Sethosa, C Sharper, R Siebrits, SK Sirothia, MJ Slabber, O Smirnov, S Smith, L Sofeya, N Songqumase, R Spann, B Stappers, D Steyn, TJ Steyn, R Strong, A Struthers, C Stuart, P Sunnylall, PS Swart, B Taljaard, C Tasse, G Taylor, IP Theron, V Thondikulam, K Thorat, A Tiplady, O Toruvanda, J van Aardt, T van Balla, L van den Heever, A van der Byl, C van der Merwe, P van der Merwe, PC van Niekerk, R van Rooyen, JP van Staden, V van Tonder, R van Wyk, I Wait, AL Walker, B Wallace, M Welz, LP Williams, B Xaia, N Young, S Zitha
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RFI flagging implications for short-duration transients

Astronomy and Computing Elsevier 23 (2018) 103-114

Authors:

Y Cendes, P Prasad, A Rowlinson, RAMJ Wijers, JD Swinbank, CJ Law, AJ van der Horst, D Carbone, JW Broderick, TD Staley, AJ Stewart, F Huizinga, G Molenaar, A Alexov, ME Bell, T Coenen, S Corbel, J Eislöffel, R Fender, J-M Grießmeier, P Jonker, M Kramer, M Kuniyoshi, M Pietka, B Stappers, M Wise, P Zarka
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Tracking of an electron beam through the solar corona with LOFAR

Astronomy and Astrophysics EDP Sciences 611 (2018) A57

Authors:

G Mann, F Breitling, C Vocks, H Aurass, M Steinmetz, KG Strassmeier, MM Bisi, RA Fallows, P Gallagher, A Kerdraon, A Mackinnon, J Magdalenic, H Rucker, J Anderson, A Asgekar, IM Avruch, ME Bell, MJ Bentum, G Bernardi, P Best, L Birzan, A Bonafede, JW Broderick, M Brueggen, HR Butcher, B Ciardi, A Corstanje, F de Gasperin, E de Geus, A Deller, S Duscha, J Eisloeffel, D Engels, H Falcke, Robert Fender, C Ferrari, W Frieswijk, MA Garrett, J Griessmeier, AW Gunst, M van Haarlem, TE Hassall, G Heald, JWT Hessels, M Hoeft, J Horandel, A Horneffer, E Juette, Aris Karastergiou, WFA Klijn

Abstract:

The Sun's activity leads to bursts of radio emission, among other phenomena. An example is type-III radio bursts. They occur frequently and appear as short-lived structures rapidly drifting from high to low frequencies in dynamic radio spectra. They are usually interpreted as signatures of beams of energetic electrons propagating along coronal magnetic field lines. Here we present novel interferometric LOFAR (LOw Frequency ARray) observations of three solar type-III radio bursts and their reverse bursts with high spectral, spatial, and temporal resolution. They are consistent with a propagation of the radio sources along the coronal magnetic field lines with nonuniform speed. Hence, the type-III radio bursts cannot be generated by a monoenergetic electron beam, but by an ensemble of energetic electrons with a spread distribution in velocity and energy. Additionally, the density profile along the propagation path is derived in the corona. It agrees well with three-fold coronal density model by (1961, ApJ, 133, 983).
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Tracking of an electron beam through the solar corona with LOFAR

ASTRONOMY & ASTROPHYSICS 611 (2018) ARTN A57

Authors:

G Mann, F Breitling, C Vocks, H Aurass, M Steinmetz, KG Strassmeier, MM Bisi, RA Fallows, P Gallagher, A Kerdraon, A Mackinnon, J Magdalenic, H Rucker, J Anderson, A Asgekar, IM Avruch, ME Bell, MJ Bentum, G Bernardi, P Best, L Birzan, A Bonafede, JW Broderick, M Brueggen, HR Butcher, B Ciardi, A Corstanje, F de Gasperin, E de Geus, A Deller, S Duscha, J Eisloeffel, D Engels, H Falcke, R Fender, C Ferrari, W Frieswijk, MA Garrett, J Griessmeier, AW Gunst, M van Haarlem, TE Hassall, G Heald, JWT Hessels, M Hoeft, J Horandel, A Horneffer, E Juette, A Karastergiou, WFA Klijn, VI Kondratiev, M Kramer, M Kuniyoshi, G Kuper, P Maat, S Markoff, R McFadden, D McKay-Bukowski, JP McKean, DD Mulcahy, H Munk, A Nelles, MJ Norden, E Orru, H Paas, M Pandey-Pommier, VN Pandey, R Pizzo, AG Polatidis, D Rafferty, W Reich, H Rottgering, AMM Scaife, DJ Schwarz, M Serylak, J Sluman, O Smirnov, BW Stappers, M Tagger, Y Tang, C Tasse, S ter Veen, S Thoudam, MC Toribio, R Vermeulen, RJ van Weeren, MW Wise, O Wucknitz, S Yatawatta, P Zarka, JA Zensus
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