@Article{JesusGFLJZFAY:2020:ToObMa,
               author = "Jesus, Lorena do Carmo and Gonz{\'a}lez-Casanova, Diego F. and 
                         Falceta-Gon{\c{c}}alves, Diego and Lazarian, Alex and Jablonski, 
                         Francisco Jos{\'e} and Zhabg, Jian Fu and Ferreira, Ivan and 
                         Avila, Manuel Antonio Castro and Yang, Bo",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {University 
                         of Wisconsin} and {Universidade de S{\~a}o Paulo (USP)} and 
                         {University of Wisconsin} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {University of Wisconsin} and {Universidade 
                         de Bras{\'{\i}}lia (UnB)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {University of Wisconsin}",
                title = "Synchrotron Intensity and Polarization Gradients: Tools to Obtain 
                         the Magnetization Level in a Turbulent Medium",
              journal = "Astrophysical Journal",
                 year = "2020",
               volume = "905",
               number = "2",
                pages = "e130",
                month = "Dec.",
             keywords = "Magnetohydrodynamics, Interstellar synchrotron emission, 
                         Interstellar medium, Interstellar plasma.",
             abstract = "Synchrotron intensity and polarization gradients (SIG and SPG), 
                         proposed by Lazarian et al. and Lazarian \& Yuen, present a new 
                         way to recover the mean magnetic field direction in the plane of 
                         the sky. To measure the magnetization level, Lazarian et al. 
                         suggested that the methods used in the context of the {"}Velocity 
                         Gradient Technique{"} could also be used on the SIG and SPG 
                         contexts. In this work we test the two proposed methods, named 
                         {"}top-base{"} and the circular standard deviation, {"}S,{"} to 
                         obtain the level of magnetization from synchrotron emission. In 
                         order to test the methods, we generate synthetic observations from 
                         magnetohydrodynamic computer simulations, with Alfvenic Mach 
                         numbers, M-A [0.2,1.7]. Using a Bayesian analysis we find that the 
                         circular standard deviations for the SIG and SPG methods are able 
                         to recover the magnetization for cases with signal-to-noise ratio 
                         greater than or similar to 5. We found that for weak Faraday 
                         depolarization and different angles between the magnetic field 
                         direction and the line of sight the magnetization level can still 
                         be estimated.",
                  doi = "10.3847/1538-4357/abc331",
                  url = "http://dx.doi.org/10.3847/1538-4357/abc331",
                 issn = "0004-637X and 1538-4357",
             language = "en",
           targetfile = "carmo_synchroton.pdf",
        urlaccessdate = "19 abr. 2024"
}