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Browsing by Subject "Galaxies: active"

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Browsing by Subject "Galaxies: active"

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  • Oh, K; Schawinski, K; Koss, M; Trakhtenbrot, B; Lamperti, I; Ricci, C; Mushotzky, R; Veilleux, S; Berney, S; Crenshaw, DM; Gehrels, N; Harrison, F; Masetti, N; Soto, KT; Stern, D; Treister, E; Ueda, Y (OXFORD UNIV PRESS, 2016-09)
    We investigate the observed relationship between black hole mass (M-BH), bolometric luminosity (L-bol) and Eddington ratio (lambda(Edd)) with optical emission-line ratios ([N II] lambda 6583/H alpha, [S II] lambda lambda ...
  • Sbordone, L.; Monaco, L.; Moni Bidin, C.; Bonifacio, P.; Villanova, S.; Bellazzini, M.; Ibata, R.; Chiba, M.; Geisler, D.; Caffau, E.; Duffau, S. (EDP SCIENCES, 2015-07)
    Context. The tidal disruption of the Sagittarius dwarf spheroidal galaxy (Sgr dSph) is producing the most prominent substructure in the Milky Way (MW) halo, the Sagittarius Stream. Aside from field stars, it is suspected ...
  • Marchesini, EJ; Masetti, N; Chavushyan, V; Cellone, SA; Andruchow, I; Bassani, L; Bazzano, A; Jimenez-Bailon, E; Landi, R; Malizia, A; Palazzi, E; Patino-Alvarez, V; Rodriguez-Castillo, GA; Stephen, JB; Ubertini, P (EDP SCIENCES, 2016-11)
    Context. Based on their overwhelming dominance among associated Fermi gamma-ray catalogue sources, it is expected that a large fraction of the unidentified Fermi objects are blazars. Through crossmatching between the ...
  • Crespo, NA; Massaro, F; Milisavljevic, D; Landoni, M; Chavushyan, V; Patino-Alvarez, V; Masetti, N; Jimenez-Bailon, E; Strader, J; Chomiuk, L; Katagiri, H; Kagaya, M; Cheung, CC; Paggi, A; D'Abrusco, R; Ricci, F; La Franca, F; Smith, HA; Tosti, G (IOP PUBLISHING, 2016)
    Blazars, one of the most extreme classes of active galaxies, constitute so far the largest known population of.-ray sources, and their number is continuously growing in the Fermi catalogs. However, in the latest release ...
  • Massaro, F; Marchesini, EJ; D'Abrusco, R; Masetti, N; Andruchow, I; Smith, HA (ASTROPHYSICAL JOURNAL, 834 (2):10.3847/1538-4357/834/2/113 JAN 6 201, 2017-01)
    The existence of "radio-weak BL Lac objects" (RWBLs) has been an open question, and has remained unsolved since the discovery that quasars could be radio-quiet or radio-loud. Recently, several groups identified RWBL ...