author = "Araujo, Jos{\'e} Carlos Neves de and Miranda, O. D.",
          affiliation = "Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de 
                         Astrof{\'{\i}}sica and {}",
                title = "Star formation rate density and the stochastic background of 
                         gravitational waves",
              journal = "Physica A: Statistical Mechanics and its Applications",
                 year = "2005",
               volume = "71",
               number = "12",
                pages = "Art. No. 127503",
                month = "June",
                         DISTANCES, COLLAPSE.",
             abstract = "There is in the literature a number of papers addressing the 
                         stochastic background of gravitational waves (GWs) generated by an 
                         ensemble of astrophysical sources. The main ingredient in such 
                         studies is the so called star formation rate density (SFRD), which 
                         gives the density of stars formed per unit time. Some authors 
                         argue, however, that there is, in the equation that determines the 
                         amplitude of the stochastic background of GWs, an additional (1+z) 
                         term dividing the SFRD, which would account for the effect of 
                         cosmic expansion onto the time variable. We argue here that the 
                         inclusion of this additional term is wrong. In order to clarify 
                         where the inclusion of the (1+z) term is really necessary, we 
                         briefly discuss the calculation of event rates in the study of 
                         GRBs (gamma ray bursts) from cosmological origin.",
           copyholder = "SID/SCD",
                 issn = "0378-4371",
             language = "en",
           targetfile = "araujo-star.pdf",
        urlaccessdate = "22 jan. 2021"