The 1.28 GHz MeerKAT Galactic Center Mosaic

Autor: I. Heywood, I. Rammala, F. Camilo, W. D. Cotton, F. Yusef-Zadeh, T. D. Abbott, R. M. Adam, G. Adams, M. A. Aldera, K. M. B. Asad, E. F. Bauermeister, T. G. H. Bennett, H. L. Bester, W. A. Bode, D. H. Botha, A. G. Botha, L. R. S. Brederode, S. Buchner, J. P. Burger, T. Cheetham, D. I. L. de Villiers, M. A. Dikgale-Mahlakoana, L. J. du Toit, S. W. P. Esterhuyse, B. L. Fanaroff, S. February, D. J. Fourie, B. S. Frank, R. R. G. Gamatham, M. Geyer, S. Goedhart, M. Gouws, S. C. Gumede, M. J. Hlakola, A. Hokwana, S. W. Hoosen, J. M. G. Horrell, B. Hugo, A. I. Isaacson, G. I. G. Józsa, J. L. Jonas, A. F. Joubert, R. P. M. Julie, F. B. Kapp, J. S. Kenyon, P. P. A. Kotzé, N. Kriek, H. Kriel, V. K. Krishnan, R. Lehmensiek, D. Liebenberg, R. T. Lord, B. M. Lunsky, K. Madisa, L. G. Magnus, O. Mahgoub, A. Makhaba, S. Makhathini, J. A. Malan, J. R. Manley, S. J. Marais, A. Martens, T. Mauch, B. C. Merry, R. P. Millenaar, N. Mnyandu, O. J. Mokone, T. E. Monama, M. C. Mphego, W. S. New, B. Ngcebetsha, K. J. Ngoasheng, M. T. Ockards, N. Oozeer, A. J. Otto, S. S. Passmoor, A. A. Patel, A. Peens-Hough, S. J. Perkins, A. J. T. Ramaila, N. M. R. Ramanujam, Z. R. Ramudzuli, S. M. Ratcliffe, A. Robyntjies, S. Salie, N. Sambu, C. T. G. Schollar, L. C. Schwardt, R. L. Schwartz, M. Serylak, R. Siebrits, S. K. Sirothia, M. Slabber, O. M. Smirnov, L. Sofeya, B. Taljaard, C. Tasse, A. J. Tiplady, O. Toruvanda, S. N. Twum, T. J. van Balla, A. van der Byl, C. van der Merwe, V. Van Tonder, R. Van Wyk, A. J. Venter, M. Venter, B. H. Wallace, M. G. Welz, L. P. Williams, B. Xaia

The inner $\sim$200 pc region of the Galaxy contains a 4 million M$_{\odot}$ supermassive black hole (SMBH), significant quantities of molecular gas, and star formation and cosmic ray energy densities that are roughly two orders of magnitude higher t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28fe7ee4d1e1621d3fd4322adc908210

Inflation of 430-parsec bipolar radio bubbles in the Galactic Centre by an energetic event

Autor: Jasper Horrell, M. Serylak, T. D. Abbott, P. P. A. Kotzé, J. P. Burger, L. G. Magnus, A. A. Pate, P. S. Swart, A. Loots, S. Tshongweni, A. van der Byl, S. Buchner, Farhad Yusef-Zadeh, Jason Manley, T. W. Kusel, R. Renil, T. J. van Balla, D. H. Botha, A. R. Foley, N. Mnyandu, O. Mahgoub, A. G. Botha, B. M. Lunsky, L. C. Schwardt, Bruce Merry, A. J. Tiplad, C. J. Hoek, R. Siebrits, Dirk I. L. de Villiers, C. L. van Dyk, T. Cheetham, J. A. Malan, C.G. Van der Merwe, D. M. Horn, S. Salie, T. E. Monama, A. R. Isaacson, I. P. T. Moeng, Kshitij Thorat, E. F. Bauermeister, Roy Booth, F. Kapp, B. L. Fanaroff, Simon Perkins, M. C. Mphego, A. Rust, V. Van Tonder, W. S. New, Oleg Smirnov, S. Gounden, H. Kriel, J. D. B. L. Jordaan, M. A. Dikgale-Mahlakoana, R. T. Lord, L. J. du Toit, B. Ngcebetsha, S. W. P. Esterhuyse, P. Macfarlane, Sharmila Goedhart, D. T. Taylor, Justin L. Jonas, R. van Rooyen, C. Magozore, M. J. Hlakola, Dehann Fourie, Robert Lehmensiek, A. F. Joubert, Fernando Camilo, B. H. Wallace, D. Liebenberg, R. van Wyk, R. R. G. Gamatham, Gyula I. G. Józsa, Nadeem Oozeer, J. S. Kenyon, R. D. Malgas, Robert P. Millenaar, Matthys Maree, A. Hokwana, J. M. Chalmers, C. Tasse, L. P. Williams, R. M. Adam, Z. B. Brits, L. R. S. Brederode, W. D. Cotton, J. P. L. Main, M. G. Welz, B. Hugo, A. Peens-Hough, L. Sofeya, Ian Heywood, S. Ratcliffe, I. P. Theron, S. S. Passmoor, M. A. Aldera, A. J. Otto, S. K. Sirothia, R. P. M. Julie

Publikováno v: Nature
Nature, Nature Publishing Group, 2019, 573 (7773), pp.235-237. ⟨10.1038/s41586-019-1532-5⟩

The Galactic Centre contains a supermassive black hole with a mass of 4 million suns within an environment that differs markedly from that of the Galactic disk. While the black hole is essentially quiescent in the broader context of active galactic n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e79fe9fe6c451d081f553af732f66406
https://hal.archives-ouvertes.fr/hal-03080944

Revival of the Magnetar PSR J1622-4950:Observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR

Autor: G C Du Toit, T. D. Abbott, A. J. T. Ramaila, P. S. Swart, P. Ntuli, G. de Bruin, Stephanie Smith, T. E. Monama, C. Stuart, Andrew Jameson, R. Spann, H. Kriel, N. Matthysen, J. Horrell, K. M. B. Asad, D. H. Botha, L. P. Williams, L. D. Mc Nally, R. T. Lord, A. Struthers, W. de Villiers, H. Niehaus, E. F. Bauermeister, John Sarkissian, B. Jordaan, R. Andreas, T. G. H. Bennett, J. P. Conradie, Riana Geschke, I. Wait, B. Ngcebetsha, A. van der Byl, Ben Stappers, A. Robyntjies, J. P. Jansen van Rensburg, N. Mabombo, D. H. Hoorn, A. Nzama, Bruce Merry, L. Sofeya, Sharmila Goedhart, L. R. S. Brederode, M. J. Hlakola, I. Rammala, O. Toruvanda, S. Rakoma, B. L. Fanaroff, A. Rust, A. Martens, M. G. Welz, Y. Padayachee, C. T. G. Schollar, S. J. Marais, B. Xaia, J. P. van Staden, F. Karels, T. Baloyi, B. de Swardt, I. Liebenberg, Vanessa A. Moss, A. L. Walker, C.G. Van der Merwe, W. S. New, E. C. Knox-Davies, R. Millenaar, P. Prozesky, L. J. du Toit, O. J. Mokone, K. Madisa, G. Sethosa, Griffin Foster, T. L. Grobler, Tom Alberts, S. S. Passmoor, F. Joubert, A. A. Patel, D. Koch, Ramesh Karuppusamy, L. Richter, Kshitij Thorat, O. Mahgoub, Jason Manley, C. Sharpe, M. J. Slabber, P. L. van der Merwe, S. Fataar, G. B. Taylor, M. Rasivhaga, P. Sunnylall, MacCalvin Kariseb, Gyula I. G. Józsa, A. R. Foley, N. Marais, M. A. Dikgale, J. P. Burger, C. Olyn, S. Paula, A. J. Otto, S. Ratcliffe, B. Pholoholo, R. Renil, T. Macdonald, Justin L. Jonas, R. van Rooyen, P. Scholz, Oleg Smirnov, B. H. Wallace, Fernando Camilo, A. Peens-Hough, S. Lamoor, F. Obies, L. Marais, T. J. Steyn, M. T. O. Ockards, O. Jacobs, C. Mjikelo, A. J. Tiplady, Roy Booth, D. Liebenberg, R. Strong, T. J. van Balla, P. C. van Niekerk, S. D. Matshawule, V. Van Tonder, C. de Waal, S. K. Sirothia, D. Rosekrans, R. M. Adam, L. Mafhungo, Matthew Bailes, G. Adams, P. P. A. Kotzé, D. M. Horn, S. Salie, M. S. de Villiers, Howard C. Reader, A. R. Isaacson, Dehann Fourie, B. Taljaard, C. de Villiers, A. F. Joubert, M. Serylak, T. Mauch, N. Sambu, Victoria M. Kaspi, C. C. Julius, N. Mnyandu, S. Seranyane, A. Krebs, Simon Johnston, N. Young, L. van den Heever, M. Manzini, R. van Wyk, M. Obrocka, N. Songqumase, T. W. Kusel, M. C. Mphego, J. A. Malan, I. P. T. Moeng, P. Malgas, K. J. Ngoasheng, B. M. Lunsky, L. C. Schwardt, M. Merryfield, W. van Straten, V. Thondikulam, B. Hugo, Nadeem Oozeer, Robert F. Archibald, P. Macfarlane, T. Cheetham, Aris Karastergiou, J. Conradie, D. Steyn, S. C. Gumede, S. Makhathini, S. W. P. Esterhuyse, N. Mkhabela, D. Booisen, R. P. M. Julie, Gianni Bernardi, L. Boyana, N. Kriek, Dirk I. L. de Villiers, T. Baxana, Cyril Tasse, M. Maree, Robert Lehmensiek, R. R. G. Gamatham, S. Zitha, D. E. Baker, K. Montshiwa, C. Magozore, Z. R. Ramudzuli, T. Gatsi, George Hobbs, S. J. Buchner, I. P. Theron, R. Siebrits, John Reynolds, A. Hokwana, F. Kapp, L. G. Magnus, V. A. Kasper, J. P. L. Main, J. van Aardt, David B. Davidson

Publikováno v: Camilo, F, Scholz, P, Serylak, M, Buchner, S, Merryfield, M, Kaspi, V M, Archibald, R F, Bailes, M, Jameson, A, Straten, W V, Sarkissian, J, Reynolds, J E, Johnston, S, Hobbs, G, Abbott, T D, Adam, R M, Adams, G B, Alberts, T, Andreas, R, Asad, K M B, Baker, D E, Baloyi, T, Bauermeister, E F, Baxana, T, Bennett, T G H, Bernardi, G, Booisen, D, Booth, R S, Botha, D H, Boyana, L, Brederode, L R S, Burger, J P, Cheetham, T, Conradie, J, Conradie, J P, Davidson, D B, Bruin, G D, Swardt, B D, Villiers, C D, Villiers, D I L D, Villiers, M S D, Villiers, W D, Waal, C D, Dikgale, M A, Toit, G D, Toit, L J D, Esterhuyse, S W P, Fanaroff, B, Fataar, S, Foley, A R, Foster, G, Fourie, D, Gamatham, R, Gatsi, T, Geschke, R, Goedhart, S, Grobler, T L, Gumede, S C, Hlakola, M J, Hokwana, A, Hoorn, D H, Horn, D, Horrell, J, Hugo, B, Isaacson, A, Jacobs, O, Van Rensburg, J P J, Jonas, J L, Jordaan, B, Joubert, A, Joubert, F, Józsa, G I G, Julie, R, Julius, C C, Kapp, F, Karastergiou, A, Karels, F, Kariseb, M, Karuppusamy, R, Kasper, V, Knox-Davies, E C, Koch, D, Kotzé, P P A, Krebs, A, Kriek, N, Kriel, H, Kusel, T, Lamoor, S, Lehmensiek, R, Liebenberg, D, Liebenberg, I, Lord, R T, Lunsky, B, Mabombo, N, Macdonald, T, Macfarlane, P, Madisa, K, Mafhungo, L, Magnus, L G, Magozore, C, Mahgoub, O, Main, J P L, Makhathini, S, Malan, J A, Malgas, P, Manley, J R, Manzini, M, Marais, L, Marais, N, Marais, S J, Maree, M, Martens, A, Matshawule, S D, Matthysen, N, Mauch, T, Nally, L D M, Merry, B, Millenaar, R P, Mjikelo, C, Mkhabela, N, Mnyandu, N, Moeng, I T, Mokone, O J, Monama, T E, Montshiwa, K, Moss, V, Mphego, M, New, W, Ngcebetsha, B, Ngoasheng, K, Niehaus, H, Ntuli, P, Nzama, A, Obies, F, Obrocka, M, Ockards, M T, Olyn, C, Oozeer, N, Otto, A J, Padayachee, Y, Passmoor, S, Patel, A A, Paula, S, Peens-Hough, A, Pholoholo, B, Prozesky, P, Rakoma, S, Ramaila, A J T, Rammala, I, Ramudzuli, Z R, Rasivhaga, M, Ratcliffe, S, Reader, H C, Renil, R, Richter, L, Robyntjies, A, Rosekrans, D, Rust, A, Salie, S, Sambu, N, Schollar, C T G, Schwardt, L, Seranyane, S, Sethosa, G, Sharpe, C, Siebrits, R, Sirothia, S K, Slabber, M J, Smirnov, O, Smith, S, Sofeya, L, Songqumase, N, Spann, R, Stappers, B, Steyn, D, Steyn, T J, Strong, R, Struthers, A, Stuart, C, Sunnylall, P, Swart, P S, Taljaard, B, Tasse, C, Taylor, G, Theron, I P, Thondikulam, V, Thorat, K, Tiplady, A, Toruvanda, O, Aardt, J V, Balla, T V, Heever, L V D, Byl, A V D, Merwe, C V D, Merwe, P V D, Niekerk, P C V, Rooyen, R V, Staden, J P V, Tonder, V V, Wyk, R V, Wait, I, Walker, A L, Wallace, B, Welz, M, Williams, L P, Xaia, B, Young, N & Zitha, S 2018, ' Revival of the Magnetar PSR J1622-4950 : Observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR ', Astrophysical Journal, vol. 856, no. 2, 180 . https://doi.org/10.3847/1538-4357/aab35a
Astrophys.J.
Astrophys.J., 2018, 856 (2), pp.180. ⟨10.3847/1538-4357/aab35a⟩

New radio (MeerKAT and Parkes) and X-ray (XMM-Newton, Swift, Chandra, and NuSTAR) observations of PSR J1622-4950 indicate that the magnetar, in a quiescent state since at least early 2015, reactivated between 2017 March 19 and April 5. The radio flux

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1183d8d7140c7cbe20b7bb15b4d0949
https://www.research.manchester.ac.uk/portal/en/publications/revival-of-the-magnetar-psr-j16224950(6839ea7d-de19-4533-ac24-649b0201bc01).html

Early science with the Karoo Array Telescope: a mini-halo candidate in galaxy cluster Abell 3667

Autor: C. J. Riseley, Nadeem Oozeer, Anna M. M. Scaife, Michael W. Wise, L. G. Magnus

Abell 3667 is among the most well-studied galaxy clusters in the Southern Hemisphere. It is known to host two giant radio relics and a head-tail radio galaxy as the brightest cluster galaxy. Recent work has suggested the additional presence of a brid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd8ddfbb17bf7601e06a2046c0a80188
https://hdl.handle.net/10394/18419