Browsing by Author "6161e6e2-a7b2-421c-aa45-6fc9f34cbdb8"

Now showing items 1-4 of 4

    • 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 This includes 12 years of new unpublished observations (2003 to 2015).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 31 DEG2 release of the stripe 82 X-RAY survey: the point source catalog 
      LaMassa, Stephanie; Urry, C. Megan; Cappellut, Nico; Böhringer, Hans; Comastri, Andrea; Glikman, Eilat; Richards, Gordon; Ananna, Tonima; Brusa, Marcella; Cardamone, Carie; Chon, Gayoung; Civano, Francesca; Farrah, Duncan; Gilfanov, Marat; Green, Paul; Komossa, S.; Lira Teillery, Paulina; Makler, Martin; Marchesi, Stefano; Pecoraro, Robert; Ranalli, Piero; Salvato, Mara; Schawinski, Kevin; Stern, Daniel; Treister, Ezequiel; Viero, Marco (The American Astronomical Society, 2016-02-01)
      We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg2 of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are ...
    • Tidal disruption events: Past, present, and future 
      Saxton, R.; Motch, C.; Komossa, S.; Lira Teillery, Paulina; Read, A.; Alexander, K.; Descalzo, M.; Koenig,; Freyberg, M. (Wiley-VCH Verlag, 2019)
      The tidal disruption of a star by a nuclear supermassive black hole was predicted in the 1970s and first confirmed by soft X-ray flares seen from quiescent galaxies in the ROSAT all-sky survey. We report here on the discovery ...
    • XMMSL1 J074008.2-853927: A tidal disruption event with thermal and non-thermal components 
      Saxton, R. D.; Read, A. M.; Komossa, S.; Lira Teillery, Paulina; Alexander, K. D.; Wieringa, M. H. (EDP Sciences, 2017)
      Aims. We study X-ray bright tidal disruption events (TDE), close to the peak of their emission, with the intention of understanding the evolution of their light curves and spectra. Methods. CandidateTDEareidentifiedbysear ...