Navegação Ciências Exatas e da Terra por Assunto "X-ray surveys"

Resultados 1-2 de 2

    • BASS. XXII : the BASS DR2 AGN catalog and data 

      Koss, Michael; Riffel, Rogério; Williams, Jonathan (2022) [Artigo de periódico]
      We present the active galactic nucleus (AGN) catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1449 optical spectra, of which ...

    • BASS. XXXV.: The MBH–σ* Relation of 105Month Swift-BAT Type 1 AGNs 

      Caglar, Turgay; Riffel, Rogério; Urry, C. Megan (2023) [Artigo de periódico]
      We present two independent measurements of stellar velocity dispersions (σå) from the Ca II H+K λ3969, 3934 and Mg I b λ 5183, 5172, 5167 region (3880–5550 Å) and the calcium triplet region (8350–8750 Å) for 173 hard ...