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    • Estudo de variabilidades espectral e temporal de radiofontes 

      Gastaldi, Márcio Ribeiro; (Universidade Presbiteriana MackenzieEngenharia ElétricaEngenharia ElétricaUPMBR, 2007-02-02)
      We present the results of a 2-year project to monitor the spectral and temporal variability of Sagittarius A, Centaurus A, OV236 and the Einstein s Ring PKS1830-211 from 2004 to 2006. The observational data were obtained ...