Browsing Department of Materials Science and Metallurgy by Author "Mason, Helen Elizabeth"

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  • Atomic Processes for Astrophysical Plasmas 

    Badnell, NR; del, Giulio; Fernandez-Menchero, L; Giunta, AS; Liang, GY; Mason, Helen Elizabeth; Storey, PJ (Institute of PhysicsJournal of Physics B: Atomic, Molecular and Optical Physics, 2016)
    In this review we summarize the recent calculations and improvements of atomic data that we have carried out for the analysis of astrophysical spectroscopy within the Atomic Processes for Astrophysical Plasmas (APAP) ...

  • Cool and hot emission in a recurring active region jet 

    Mulay, Sargam; Del, Giulio; Mason, Helen Elizabeth
    Aims. We present a thorough investigation of the cool and hot temperature components in four recurring active region jets observed on July 10, 2015 using the Atmospheric Imaging Assembly (AIA), X-ray Telescope (XRT), and ...

  • 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 ...