Browsing by Author "Lawrence, A."

Now showing items 1-2 of 2

    • Short time-scale optical variability of the dwarf Seyfert nucleus in NGC 4395 
      Skelton, J. E.; Lawrence, A.; Pappa, A.; Lira Teillery, Paulina; Almaini, O. (RAS, 2004-10-14)
      We present optical spectroscopic observations of the least-luminous known Seyfert 1 galaxy, NGC 4395, which was monitored every half-hour over the course of three nights. The continuum emission varied by ∼35 per cent ...
    • Spectropolarimetry of NGC 3783 and Mrk 509: evidence for powerful nuclear winds in Seyfert 1 galaxies 
      Lira Teillery, Paulina María; Kishimoto, M.; Goosmann, R. W.; Campos, R.; Axon, D.; Elvis, M.; Lawrence, A.; Peterson, B. M.; Robinson, A. (Oxford, 2021)
      We present results from high signal-to-noise optical spectropolarimetric observations of the Seyfert 1 galaxies NGC3783 and Mrk 509 in the 3500-7000 angstrom range. We find complex structure in the polarized emission for ...