@Article{SantosRodrMari:2022:PrCoBr,
               author = "Santos, Denimara Dias dos and Rodriguez-Ardilla, Alberto and 
                         Marinello, Murilo",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Laborat{\'o}rio Nacional de Astrof{\'{\i}}sica (LNA)} and 
                         {Laborat{\'o}rio Nacional de Astrof{\'{\i}}sica (LNA)}",
                title = "Properties of the continuum and broad line emission gas in active 
                         galactic nuclei with moderate to strong Feii emission",
              journal = "Astronomische Nachrichten",
                 year = "2022",
               volume = "343",
               number = "1/2",
                pages = "e210098",
                month = "Jan./Fev.",
             keywords = "active galaxies, near-infrared, spectroscopic.",
             abstract = "We study a sample of 67 active galactic nuclei (AGN) with moderate 
                         to strong Feii emission to investigate the relation between the 
                         observed AGN continuum and the lines produced by the broad line 
                         region (BLR), in particular, Feii. We found that the continuum in 
                         the optical/near-infrared can be described in terms of two 
                         components: a power-law, characterized by the spectral index 
                         \α, and hot dust emission, represented by a Plank function 
                         of temperature T. These two parameters seem not to be related to 
                         the strength of Feii emission. In addition to Feii, we study other 
                         low-ionization BLR lines such as Oi and Caii (hereafter CaT). We 
                         found that the full-width at half maximum of these three lines are 
                         similar, suggesting that they are produced in the same spatial 
                         region of the BLR. We measure the Feii strength in the optical and 
                         the near-infrared region and found that they are strongly 
                         correlated. This result evidences the presence of a common 
                         excitation mechanism for the Feii emission in the wavelength 
                         interval 400024000 Å.",
                  doi = "10.1002/asna.20210098",
                  url = "http://dx.doi.org/10.1002/asna.20210098",
                 issn = "0004-6337",
             language = "en",
           targetfile = "Astron Nachr - 2021 - Dias dos Santos - Properties of the 
                         continuum and broad line emission gas in active galactic 
                         nuclei.pdf",
        urlaccessdate = "25 jun. 2024"
}