Browsing by Author "Dwelly, T."

Now showing items 1-2 of 2

    • Correlated X-ray/ultraviolet/optical variability in the very low mass AGN NGC 4395 
      Cameron, D. T.; McHardy, I.; Dwelly, T.; Breedt, E.; Uttley, P.; Lira Teillery, Paulina; Arévalo, P. (WILEY-BLACKWELL, 2012-05)
      We report the results of a 1-yr Swift X-ray/ultraviolet (UV)/optical programme monitoring the dwarf Seyfert nucleus in NGC4395 in 2008–2009. The UV/optical flux from the nucleus was found to vary dramatically over the ...
    • Swift monitoring of NGC 5548: X-ray reprocessing and short-term UV/optical variability 
      McHardy, I. M.; Cameron, D. T.; Dwelly, T.; Connolly, S.; Lira Teillery, Paulina; Emmanoulopoulos, D.; Gelbord, J.; Breedt, E.; Arevalo, P.; Uttley, P. (Royal Astronomical Society, 2014)
      Lags measured from correlated X-ray/UV/optical monitoring of AGN allow us to determine whether UV/optical variability is driven by reprocessing of X-rays or X-ray variability is driven by UV/optical seed photon variations. ...