Now showing items 509-516 of 516

  • Hartoog, O. E.; Malesani, D; Fynbo, J.P.U.; Goto, T; Krühler, T.; Vreeswijk, P. M.; De Cia, A.; Xu, D.; Møller, P.; Covino, S; D'Elia, V; Flores, H; Goldoni, P.; Hjorth, Jens; Jakobsson, P.; Krogager, J.-K.; Kaper, L.; Ledoux, C.; Levan, A. J.; Milvang-Jensen, B; Sollerman, J.; Sparre, M.; Tagliaferri, G; Tanvir, N. R.; de Ugarte Postigo, A.; Vergani, S. D.; Wiersema, K; Datson, J.; Salinas, R; Mikkelsen, Kristin; Aghanim, N. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Context: The reionisation of the Universe is a process that is thought to have ended around z ~ 6, as inferred from spectroscopy of distant bright background sources, such as quasars (QSO) and gamma-ray burst (GRB) afterglows. ...
  • Kato, Yoshiaki; Wedemeyer, Sven (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Solar “magnetic tornadoes” are produced by rotating magnetic field structures that extend from the upper convection zone and the photosphere to the corona of the Sun. Recent studies show that these kinds of rotating features ...
  • Radovich, M.; Formicola, I.; Meneghetti, M.; Bartalucci, I.; Bourdin, H.; Mazzotta, P.; Moscardini, L.; Ettori, S.; Arnaud, M.; Pratt, G. W.; Aghanim, N.; Dahle, Håkon; Douspis, M.; Pointecouteau, E.; Grado, A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We present a mass estimate of the Planck-discovered cluster PLCK G100.2-30.4, derived from a weak lensing analysis of deep Subaru griz images. We perform a careful selection of the background galaxies using the multi-band ...
  • De Pontieu, Bart Walter; Martinez-Sykora, Juan; Chintzoglou, Georgios (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Spicules are the most ubuiquitous type of jets in the solar atmosphere. The advent of high-resolution imaging and spectroscopy from the Interface Region Imaging Spectrograph (IRIS) and ground-based observatories has revealed ...
  • Carlsson, Mats; Leenaarts, Jorrit; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    We analyze observations from the Interface Region Imaging Spectrograph of the Mg ii k line, the Mg ii UV subordinate lines, and the O i 135.6 $\mathrm{nm}$ line to better understand the solar plage chromosphere. We also ...
  • De Pontieu, Bart Walter; McIntosh, Scott; Martinez-Sykora, Juan; Peter, Hardi; Mendes Domingos Pereira, Tiago (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Spectral observations of the solar transition region (TR) and corona show broadening of spectral lines beyond what is expected from thermal and instrumental broadening. The remaining non-thermal broadening is significant ...
  • Zirker, Jack B.; Engvold, Oddbjørn (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017 American Institute of Physics.
  • Capozziello, S.; Harko, T.; Koivisto, Tomi Sebastian; Lobo, F. S. N.; Olmo, G. J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    Recently, a modified theory of gravity was presented, which consists of the superposition of the metric Einstein-Hilbert Lagrangian with an f(R) term constructed à la Palatini. The theory possesses extremely interesting ...