Browsing by Subject "Sun: UV radiation"

Now showing items 1-3 of 3

  • Density diagnostics derived from the O IV and S IV intercombination lines observed by IRIS 

    Polito, V; Del, Giulio; Dudík, J; Mason, Helen Elizabeth; Giunta, A; Reeves, KK (EDP SciencesAstronomy & Astrophysics, 2016)
    The intensity of the O IV 2s$^{2}$ 2p $^{2}$P-2s2p$^{2}$ $^{4}$P and S IV 3 s$^{2}$ 3p $^{2}$P- 3s 3p$^{2}$ $^{4}$ P intercombination lines around 1400 Å observed with the Interface Region Imaging Spectrograph (IRIS) provide ...

  • Multiwavelength study of 20 jets that emanate from the periphery of active regions 

    Mulay, Sargam M; Tripathi, Durgesh; Zanna, Giulio Del; Mason, Helen (EDP SciencesAstronomy & Astrophysics, 2016-04-15)
    $\textit{Aims}$. We present a multiwavelength analysis of 20 EUV jets which occurred at the periphery of active regions close to sunspots. We discuss the physical parameters of the jets and their relation with other phenomena ...

  • Temperature and density structure of a recurring active region jet 

    Mulay, Sargam M; Del, Giulio; Mason, Helen (EDP SciencesAstronomy & Astrophysics, 2016-11-08)
    Aims. We present a study of a recurring jet observed on October 31, 2011 by the Atmosphereic Imaging Assembly (AIA) on board the Solar Dynamic Observatory, the X-ray Telescope (XRT) and EUV Imaging Spectrometer (EIS) on ...