Browsing by Author "Stewart, I M"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Open Access
    A simple model for global H i profiles of galaxies
    (2014) Stewart, I M; Blyth, S- L; de Blok, W J G
    Context. Current and future blind surveys for H i generate large catalogs of spectral lines for which automated characterisation would be convenient.
  • Thumbnail Image
    Item
    Open Access
    A novel algorithm for analysing gravitational microlensing events
    (2012) Rajpaul, Vinesh; Menzies, John W; Stewart, I M; Woudt, Patrick Alan
    This dissertation presents a new algorithm that was developed to perform autonomous fitting of gravitational microlensing lightcurves. The algorithm combines features of extant evolutionary algorithms with some novel ones, and fares well on the problem of fitting binary lens microlensing lightcurves, as well as on a number of other difficult optimisation problems. Furthermore, the new algorithm is conceptually simple, versatile and robust, and parallelises trivially.