Browsing by Author "46449d49-dd77-477c-8922-56ec85549eb9"

Now showing items 1-2 of 2

    • Evidence for Periodicity in 43 Year-Long Monitoring of NGC 5548 
      Bon, Edi; Zucker, S.; Netzer, H.; Marziani, Paola; Bon, N.; Jovanovic, Predrag; Shapovalova, A. I.; Komossa, S.; Gaskell, C. M.; Popović, Ljiljana; Britzen, Stefan; Chavushyan, V. H.; Burenkov, A.; Sergeev, S. G.; La Mura, Giovanni; Valdés, J. R.; Stalevski, Marko (IOP, 2016)
      We present an analysis of 43 years (1972 to 2015) of spectroscopic observations of the Seyfert 1 galaxy NGC 5548. This includes 12 years of new unpublished observations (2003 to 2015). We compiled about 1600 H beta spectra ...
    • The radio structure of the narrow-line Seyfert 1 Mrk 783 with VLBA and e-MERLIN 
      Congiu, E.; Kharb, P.; Tarchi, A.; Berton, M.; Caccianiga, A.; Chen, S.; Crepaldi, L.; Di Mille, F.; Järvelä, E.; Jarvis, M. E.; Mura, G. la; Vietri, A. (Oxford University Press, 2020)
      In this paper, we present the analysis of new radio and optical observations of the narrow-line Seyfert 1 galaxy Mrk 783. 1.6 GHz observations performed with the e-MERLIN interferometer confirm the presence of the diffuse ...