Zobrazeno 1 - 10
of 168
pro vyhledávání: '"van der Heyden, K"'
Autor:
Parekh, V., Kincaid, R., Thorat, K., Hugo, B., Sankhyayan, S., Kale, R., Oozeer, N., Smirnov, O., Heywood, I., Makhathini, S., van der Heyden, K.
Superclusters are the largest objects in the Universe, and they provide a unique opportunity to study how galaxy clusters are born at the junction of the cosmic web as well as the distribution of magnetic fields and relativistic particles beyond clus
Externí odkaz:
http://arxiv.org/abs/2110.07713
Autor:
Parekh, V., Thorat, K., Kale, R., Hugo, B., Oozeer, N., Makhathini, S., Kleiner, D., White, S. V., Józsa, G. I. G., Smirnov, O., van der Heyden, K., Perkins, S., Andati, L., Ramaila, A., Ramatsoku, M.
We present the discovery of a single radio relic located at the edge of the galaxy cluster A2384, using the MeerKAT radio telescope. A2384 is a nearby ($z$ = 0.092), low mass, complex bimodal, merging galaxy cluster that displays a dense X-ray filame
Externí odkaz:
http://arxiv.org/abs/2009.02724
We present phase-resolved optical spectroscopy of the eclipsing nova-like cataclysmic variable EC21178-5417 obtained between 2002 and 2013. The average spectrum of EC21178-5417 shows broad double-peaked emission lines from HeII 4686 \AA{} (strongest
Externí odkaz:
http://arxiv.org/abs/2003.04370
Clusters of varying mass ratios can merge and the process significantly disturbs the cluster environments and alters their global properties. Active radio galaxies are another phenomenon that can also affect cluster environments. Radio jets can inter
Externí odkaz:
http://arxiv.org/abs/1910.12955
Autor:
Fender, R., Woudt, P. A., Armstrong, R., Groot, P., McBride, V., Miller-Jones, J., Mooley, K., Stappers, B., Wijers, R., Bietenholz, M., Blyth, S., Bottcher, M., Buckley, D., Charles, P., Chomiuk, L., Coppejans, D., Corbel, S., Coriat, M., Daigne, F., de Blok, W. J. G., Falcke, H., Girard, J., Heywood, I., Horesh, A., Horrell, J., Jonker, P., Joseph, T., Kamble, A., Knigge, C., Koerding, E., Kotze, M., Kouveliotou, C., Lynch, C., Maccarone, T., Meintjes, P., Migliari, S., Murphy, T., Nagayama, T., Nelemans, G., Nicholson, G., O'Brien, T., Oodendaal, A., Oozeer, N., Osborne, J., Perez-Torres, M., Ratcliffe, S., Ribeiro, V., Rol, E., Rushton, A., Scaife, A., Schurch, M., Sivakoff, G., Staley, T., Steeghs, D., Stewart, I., Swinbank, J., van der Heyden, K., van der Horst, A., van Soelen, B., Vergani, S., Warner, B., Wiersema, K.
ThunderKAT is the image-plane transients programme for MeerKAT. The goal as outlined in 2010, and still today, is to find, identify and understand high-energy astrophysical processes via their radio emission (often in concert with observations at oth
Externí odkaz:
http://arxiv.org/abs/1711.04132
Autor:
de Blok, W. J. G., Adams, E. A. K., Amram, P., Athanassoula, E., Bagetakos, I., Balkowski, C., Bershady, M. A., Beswick, R., Bigiel, F., Blyth, S. -L., Bosma, A., Booth, R. S., Bouchard, A., Brinks, E., Carignan, C., Chemin, L., Combes, F., Conway, J., Elson, E. C., English, J., Epinat, B., Frank, B. S., Fiege, J., Fraternali, F., Gallagher, J. S., Gibson, B. K., Heald, G., Henning, P. A., Holwerda, B. W., Jarrett, T. H., Jerjen, H., Józsa, G. I., Kapala, M., Klöckner, H. -R., Koribalski, B. S., Kraan-Korteweg, R. C., Leon, S., Leroy, A., Loubser, S. I., Lucero, D. M., McGaugh, S. S., Meurer, G. R., Meyer, M., Mogotsi, M., Namumba, B., Oh, S-H., Oosterloo, T. A., Pisano, D. J., Popping, A., Ratcliffe, S., Sellwood, J. A., Schinnerer, E., Schröder, A. C., Sheth, K., Smith, M. W. L., Sorgho, A., Spekkens, K., Stanimirovic, S., van der Heyden, K., van Driel, W., Verdes-Montenegro, L., Walter, F., Westmeier, T., Wilcots, E., Williams, T., Wong, O. I., Woudt, P. A., Zijlstra, A.
MHONGOOSE is a deep survey of the neutral hydrogen distribution in a representative sample of 30 nearby disk and dwarf galaxies with HI masses from 10^6 to ~10^{11} M_sun, and luminosities from M_R ~ -12 to M_R ~ -22. The sample is selected to unifor
Externí odkaz:
http://arxiv.org/abs/1709.08458
Autor:
Jarvis, Matt J., Taylor, A. R., Agudo, I., Allison, James R., Deane, R. P., Frank, B., Gupta, N., Heywood, I., Maddox, N., McAlpine, K., Santos, Mario G., Scaife, A. M. M., Vaccari, M., Zwart, J. T. L., Adams, E., Bacon, D. J., Baker, A. J., Bassett, Bruce. A., Best, P. N., Beswick, R., Blyth, S., Brown, Michael L., Bruggen, M., Cluver, M., Colafranceso, S., Cotter, G., Cress, C., Dave, R., Ferrari, C., Hardcastle, M. J., Hale, C., Harrison, I., Hatfield, P. W., Klockner, H. -R., Kolwa, S., Malefahlo, E., Marubini, T., Mauch, T., Moodley, K., Morganti, R., Norris, R., Peters, J. A., Prandoni, I., Prescott, M., Oliver, S., Oozeer, N., Rottgering, H. J. A., Seymour, N., Simpson, C., Smirnov, O., Smith, D. J. B., Spekkens, K., Stil, J., Tasse, C., van der Heyden, K., Whittam, I. H., WIlliams, W. L.
The MIGHTEE large survey project will survey four of the most well-studied extragalactic deep fields, totalling 20 square degrees to $\mu$Jy sensitivity at Giga-Hertz frequencies, as well as an ultra-deep image of a single ~1 square degree MeerKAT po
Externí odkaz:
http://arxiv.org/abs/1709.01901
Autor:
Woudt, P. A., Warner, B., Gulbis, A., Coppejans, R., Hambsch, F. -J., Beardmore, A. P., Evans, P. A., Osborne, J. P., Page, K. L., Wynn, G. A., van der Heyden, K.
We present high speed optical, spectroscopic and Swift X-ray observations made during the dwarf nova superoutburst of CC Scl in November 2011. An orbital period of 1.383 h and superhump period of 1.443 h were measured, but the principal new finding i
Externí odkaz:
http://arxiv.org/abs/1208.5936
Autor:
Holwerda, B. W., Pirzkal, N., Cox, T. J., de Blok, W. J. G., Weniger, J., Bouchard, A., Blyth, S. -L., van der Heyden, K. S.
Major mergers of disk galaxies are thought to be a substantial driver in galaxy evolution. To trace the fraction and the rate galaxies are in mergers over cosmic times, several observational techniques, including morphological selection criteria, hav
Externí odkaz:
http://arxiv.org/abs/1104.3306
Autor:
Holwerda, B. W., Pirzkal, N., de Blok, W. J. G., Bouchard, A., Blyth, S-L., van der Heyden, K. J., Elson, E. C.
Lopsidedness of the gaseous disk of spiral galaxies is a common phenomenon in disk morphology, profile and kinematics. Simultaneously, the asymmetry of a galaxy's stellar disk, in combination with other morphological parameters, has seen extensive us
Externí odkaz:
http://arxiv.org/abs/1104.3292