학술논문

The MeerKAT Galaxy Cluster Legacy Survey I. Survey Overview and Highlights
Document Type
Working Paper
Author
Knowles, K.Cotton, W. D.Rudnick, L.Camilo, F.Goedhart, S.Deane, R.Ramatsoku, M.Bietenholz, M. F.Brüggen, M.Button, C.Chen, H.Chibueze, J. O.Clarke, T. E.de Gasperin, F.Ianjamasimanana, R.Józsa, G. I. G.Hilton, M.Kesebonye, K. C.Kolokythas, K.Kraan-Korteweg, R. C.Lawrie, G.Lochner, M.Loubser, S. I.Marchegiani, P.Mhlahlo, N.Moodley, K.Murphy, E.Namumba, B.Oozeer, N.Parekh, V.Pillay, D. S.Passmoor, S. S.Ramaila, A. J. T.Ranchod, S.Retana-Montenegro, E.Sebokolodi, L.Sikhosana, S. P.Smirnov, O.Thorat, K.Venturi, T.Abbott, T. D.Adam, R. M.Adams, G.Aldera, M. A.Bauermeister, E. F.Bennett, T. G. H.Bode, W. A.Botha, D. H.Botha, A. G.Brederode, L. R. S.Buchner, S.Burger, J. P.Cheetham, T.de Villiers, D. I. L.Dikgale-Mahlakoana, M. A.Toit, L. J. duEsterhuyse, S. W. P.Fadana, G.Fanaroff, B. L.Fataar, S.Foley, A. R.Fourie, D. J.Frank, B. S.Gamatham, R. R. G.Gatsi, T. G.Geyer, M.Gouws, M.Gumede, S. C.Heywood, I.Hlakola, M. J.Hokwana, A.Hoosen, S. W.Horn, D. M.Horrell, J. M. G.Hugo, B. V.Isaacson, A. R.Jonas, J. L.Jordaan, J. D. B.Joubert, A. F.Julie, R. P. M.Kapp, F. B.Kasper, V. A.Kenyon, J. S.Kotzé, P. P. A.Kotze, A. G.Kriek, N.Kriel, H.Krishnan, V. K.Kusel, T. W.Legodi, L. S.Lehmensiek, R.Liebenberg, D.Lord, R. T.Lunsky, B. M.Madisa, K.Magnus, L. G.Main, J. P. L.Makhaba, A.Makhathini, S.Malan, J. A.Manley, J. R.Marais, S. J.Maree, M. D. J.Martens, A.Mauch, T.McAlpine, K.Merry, B. C.Millenaar, R. P.Mokone, O. J.Monama, T. E.Mphego, M. C.New, W. S.Ngcebetsha, B.Ngoasheng, K. J.Ockards, M. T.Otto, A. J.Patel, A. A.Peens-Hough, A.Perkins, S. J.Ramanujam, N. M.Ramudzuli, Z. R.Ratcliffe, S. M.Renil, R.Robyntjies, A.Rust, A. N.Salie, S.Sambu, N.Schollar, C. T. G.Schwardt, L. C.Schwartz, R. L.Serylak, M.Siebrits, R.Sirothia, S. K.Slabber, M.Sofeya, L.Taljaard, B.Tasse, C.Tiplady, A. J.Toruvanda, O.Twum, S. N.van Balla, T. J.van der Byl, A.van der Merwe, C.van Dyk, C. L.Van Tonder, V.Van Wyk, R.Venter, A. J.Venter, M.Welz, M. G.Williams, L. P.Xaia, B.
Source
Subject
Astrophysics - Astrophysics of Galaxies
Astrophysics - Cosmology and Nongalactic Astrophysics
Language
Abstract
MeerKAT's large number of antennas, spanning 8 km with a densely packed 1 km core, create a powerful instrument for wide-area surveys, with high sensitivity over a wide range of angular scales. The MeerKAT Galaxy Cluster Legacy Survey (MGCLS) is a programme of long-track MeerKAT L-band (900-1670 MHz) observations of 115 galaxy clusters, observed for $\sim$6-10 hours each in full polarisation. The first legacy product data release (DR1), made available with this paper, includes the MeerKAT visibilities, basic image cubes at $\sim$8" resolution, and enhanced spectral and polarisation image cubes at $\sim$8" and 15" resolutions. Typical sensitivities for the full-resolution MGCLS image products are $\sim$3-5 {\mu}Jy/beam. The basic cubes are full-field and span 4 deg^2. The enhanced products consist of the inner 1.44 deg^2 field of view, corrected for the primary beam. The survey is fully sensitive to structures up to $\sim$10' scales and the wide bandwidth allows spectral and Faraday rotation mapping. HI mapping at 209 kHz resolution can be done at $0Comment: 43 pages, 33 figures, 6 tables. Accepted for publication in Astronomy and Astrophysics