Zobrazeno 1 - 10
of 352
pro vyhledávání: '"Franzen, T"'
Autor:
Broderick, J. W., Drouart, G., Seymour, N., Galvin, T. J., Wright, N., Rosell, A. Carnero, Chhetri, R., Dannerbauer, H., Driver, S. P., Morgan, J. S., Moss, V. A., Prabu, S., Afonso, J. M., De Breuck, C., Emonts, B. H. C., Franzen, T. M. O., Gutiérrez, C. M., Hancock, P. J., Heald, G. H., Hurley-Walker, N., Ivison, R. J., Lehnert, M. D., Noirot, G., Read, M., Shabala, S. S., Stern, D., Sutherland, W. J., Sutorius, E., Turner, R. J., Vernet, J.
While unobscured and radio-quiet active galactic nuclei are regularly being found at redshifts $z > 6$, their obscured and radio-loud counterparts remain elusive. We build upon our successful pilot study, presenting a new sample of low-frequency-sele
Externí odkaz:
http://arxiv.org/abs/2204.08490
Autor:
Gürkan, Gülay, Prandoni, I., O'Brien, A., Raja, W., Marchetti, L., Vaccari, M., Driver, S., Taylor, E., Franzen, T., Brown, M. J. I., Shabala, S., Andernach, H., Hopkins, A. M., Norris, R. P., Leahy, D., Bilicki, M., Farajollahi, H., Galvin, T., Heald, G., Koribalski, B. S., An, T., Warhurst, K.
We present the Australian Square Kilometre Array Pathfinder (ASKAP) observations of the Galaxy and Mass Assembly (GAMA)-23h field. The survey was carried out at 887.5 MHz and covers a 83 square degree field. We imaged the calibrated visibility data,
Externí odkaz:
http://arxiv.org/abs/2203.14727
Autor:
Shimwell, T. W., Hardcastle, M. J., Tasse, C., Best, P. N., Röttgering, H. J. A., Williams, W. L., Botteon, A., Drabent, A., Mechev, A., Shulevski, A., van Weeren, R. J., Bester, L., Brüggen, M., Brunetti, G., Callingham, J. R., Chyży, K. T., Conway, J. E., Dijkema, T. J., Duncan, K., de Gasperin, F., Hale, C. L., Haverkorn, M., Hugo, B., Jackson, N., Mevius, M., Miley, G. K., Morabito, L. K., Morganti, R., Offringa, A., Oonk, J. B. R., Rafferty, D., Sabater, J., Smith, D. J. B., Schwarz, D. J., Smirnov, O., O'Sullivan, S. P., Vedantham, H., White, G. J., Albert, J. G., Alegre, L., Asabere, B., Bacon, D. J., Bonafede, A., Bonnassieux, E., Brienza, M., Bilicki, M., Bonato, M., Rivera, G. Calistro, Cassano, R., Cochrane, R., Croston, J. H., Cuciti, V., Dallacasa, D., Danezi, A., Dettmar, R. J., Di Gennaro, G., Edler, H. W., Enßlin, T. A., Emig, K. L., Franzen, T. M. O., García-Vergara, C., Grange, Y. G., Gürkan, G., Hajduk, M., Heald, G., Heesen, V., Hoang, D. N., Hoeft, M., Horellou, C., Iacobelli, M., Jamrozy, M., Jelić, V., Kondapally, R., Kukreti, P., Kunert-Bajraszewska, M., Magliocchetti, M., Mahatma, V., Małek, K., Mandal, S., Massaro, F., Meyer-Zhao, Z., Mingo, B., Mostert, R. I. J., Nair, D. G., Nakoneczny, S. J., Nikiel-Wroczyński, B., Orrú, E., Pajdosz-Śmierciak, U., Pasini, T., Prandoni, I., van Piggelen, H. E., Rajpurohit, K., Retana-Montenegro, E., Riseley, C. J., Rowlinson, A., Saxena, A., Schrijvers, C., Sweijen, F., Siewert, T. M., Timmerman, R., Vaccari, M., Vink, J., West, J. L., Wołowska, A., Zhang, X., Zheng, J.
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at approximately 12h45m +44$^\circ$30' and 1h00m +28$^\circ$00' and spannin
Externí odkaz:
http://arxiv.org/abs/2202.11733
Autor:
Franzen, T. M. O., Seymour, N., Sadler, E. M., Mauch, T., White, S. V., Jackson, C. A., Chhetri, R., Quici, B., Bell, M. E., Callingham, J. R., Dwarakanath, K. S., For, B., Gaensler, B. M., Hancock, P. J., Hindson, L., Hurley-Walker, N., Johnston-Hollitt, M., Kapinska, A. D., Lenc, E., McKinley, B., Morgan, J., Offringa, A. R., Procopio, P., Staveley-Smith, L., Wayth, R. B., Wu, C., Zheng, Q.
The GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) is a radio continuum survey at 76-227 MHz of the entire southern sky (Declination $<+30\deg$) with an angular resolution of $\approx 2$ arcmin. In this paper, we combine GLEAM d
Externí odkaz:
http://arxiv.org/abs/2107.09030
Autor:
Shulevski, A., Franzen, T. M. O., Williams, W. L., Vernstrom, T., Gehlot, B. K., Kuiack, M., Wijers, R. A. M. J.
Dense aperture arrays provide key benefits in modern astrophysical research. They are flexible, employing cheap receivers, while relying on the ever more sophisticated compute back-end to deal with the complexities of signal processing required for o
Externí odkaz:
http://arxiv.org/abs/2103.15160
Autor:
Franzen, T., Hurley-Walker, N., White, S., Hancock, P., Seymour, N., Kapińska, A., Staveley-Smith, L., Wayth, R.
Publikováno v:
Publications of the Astronomical Society of Australia (2021), 38, e014, 10 pages
We present the South Galactic Pole (SGP) data release from the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey. These data combine both years of GLEAM observations at 72-231 MHz conducted with the Murchison Widefield Array
Externí odkaz:
http://arxiv.org/abs/2102.03232
Autor:
Hotan, A. W., Bunton, J. D., Chippendale, A. P., Whiting, M., Tuthill, J., Moss, V. A., McConnell, D., Amy, S. W., Huynh, M. T., Allison, J. R., Anderson, C. S., Bannister, K. W., Bastholm, E., Beresford, R., Bock, D. C. -J., Bolton, R., Chapman, J. M., Chow, K., Collier, J. D., Cooray, F. R., Cornwell, T. J., Diamond, P. J., Edwards, P. G., Feain, I. J., Franzen, T. M. O., George, D., Gupta, N., Hampson, G. A., Harvey-Smith, L., Hayman, D. B., Heywood, I., Jacka, C., Jackson, C. A., Jackson, S., Jeganathan, K., Johnston, S., Kesteven, M., Kleiner, D., Koribalski, B. S., Lee-Waddell, K., Lenc, E., Lensson, E. S., Mackay, S., Mahony, E. K., McClure-Griffiths, N. M., McConigley, R., Mirtschin, P., Ng, A. K., Norris, R. P., Pearce, S. E., Phillips, C., Pilawa, M. A., Raja, W., Reynolds, J. E., Roberts, P., Roxby, D. N., Sadler, E. M., Shields, M., Schinckel, A. E. T., Serra, P., Shaw, R. D., Sweetnam, T., Troup, E. R., Tzioumis, A., Voronkov, M. A., Westmeier, T.
Publikováno v:
Publ. Astron. Soc. Aust. 38 (2021) e009
In this paper we describe the system design and capabilities of the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope at the conclusion of its construction project and commencement of science operations. ASKAP is one of the first r
Externí odkaz:
http://arxiv.org/abs/2102.01870
Autor:
Quici, B., Hurley-Walker, N., Seymour, N., Turner, R. J., Shabala, S. S., Huynh, M., Andernach, H., Kapińska, A. D., Collier, J. D., Johnston-Hollitt, M., White, S. V., Prandoni, I., Galvin, T. J., Franzen, T., Ishwara-Chandra, C. H., Bellstedt, S., Tingay, S. J., Gaensler, B. M., O'Brien, A., Rogers, J., Chow, K., Driver, S., Robotham, A.
The remnant phase of a radio galaxy begins when the jets launched from an active galactic nucleus are switched off. To study the fraction of radio galaxies in a remnant phase, we take advantage of a $8.31$\,deg$^2$ sub-region of the GAMA~23~field whi
Externí odkaz:
http://arxiv.org/abs/2101.09761
Autor:
Ross, K., Callingham, J. R., Hurley-Walker, N., Seymour, N., Hancock, P., Franzen, T. M. O., Morgan, J., White, S. V., Bell, M. E., Patil, P.
Spectral variability of radio sources encodes information about the conditions of intervening media, source structure, and emission processes. With new low-frequency radio interferometers observing over wide fractional bandwidths, studies of spectral
Externí odkaz:
http://arxiv.org/abs/2012.01842
Autor:
Riseley, C. J., Galvin, T. J., Sobey, C., Vernstrom, T., White, S. V., Zhang, X., Gaensler, B. M., Heald, G., Anderson, C. S., Franzen, T. M. O., Hancock, P. J., Hurley-Walker, N., Lenc, E., Van Eck, C. L.
The low-frequency linearly-polarised radio source population is largely unexplored. However, a renaissance in low-frequency polarimetry has been enabled by pathfinder and precursor instruments for the Square Kilometre Array. In this second paper from
Externí odkaz:
http://arxiv.org/abs/2005.09266