@Article{LimaRLSJOSBPSBA:2021:SeMaAc,
               author = "Lima, Isabel de Jesus and Rodrigues, Cl{\'a}udia Vilega and 
                         Lopes, Carlos Eduardo Ferreira and Szkody, P. and Jablonski, 
                         Francisco Jos{\'e} and Oliveira, A. S. and Silva, K. M. G. and 
                         Belloni, Diogo Teixeira and Palhares, M. S. and Shugarov, S. and 
                         Baptista, R. and Almeida, L. A.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {University of Washington} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade do Vale do Para{\'{\i}}ba (UNIVAP)} and {Gemini 
                         Observatory Southern Operations Center} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade do Vale do 
                         Para{\'{\i}}ba (UNIVAP)} and {Astronomical Institute of the 
                         Slovak Academy of Sciences} and {Universidade Federal de Santa 
                         Catarina (UFSC)} and {Universidade Federal do Rio Grande do Norte 
                         (UFRN)}",
                title = "Search for Magnetic Accretion in SW Sextantis Systems",
              journal = "Astronomical Journal",
                 year = "2021",
               volume = "161",
               number = "5",
                pages = "225",
             keywords = "an{\~a}s brancas, Polarimetria, Variaveis Cataclismicas.",
             abstract = "SW Sextantis systems are nova-like cataclysmic variables that have 
                         unusual spectroscopic properties, which are thought to be caused 
                         by an accretion geometry having part of the mass flux trajectory 
                         out of the orbital plane. Accretion onto a magnetic white dwarf is 
                         one of the proposed scenarios for these systems. To verify this 
                         possibility, we analyzed photometric and polarimetric time-series 
                         data for a sample of six SW Sex stars. We report possible 
                         modulated circular polarization in BO Cet, SW Sex, and UU Aqr with 
                         periods of 11.1, 41.2, and 25.7 minutes, respectively, and less 
                         significant periodicities for V380 Oph at 22 minutes and V442 Oph 
                         at 19.4 minutes. We confirm previous results that LS Peg shows 
                         variable circular polarization. However, we determine a period of 
                         18.8 minutes, which is different from the earlier reported value. 
                         We interpret these periods as the spin periods of the white 
                         dwarfs. Our polarimetric results indicate that 15% of the SW Sex 
                         systems have direct evidence of magnetic accretion. We also 
                         discuss SW Sex objects within the perspective of being magnetic 
                         systems, considering the latest findings about the demography, 
                         formation, and evolution of cataclysmic variables.",
                  doi = "10.3847/1538-3881/abeb16",
                  url = "http://dx.doi.org/10.3847/1538-3881/abeb16",
                 issn = "0004-6256",
                label = "lattes: 9527193250756102 2 LimaRLSJOSBPSBA:2021:SeMaAc",
             language = "en",
           targetfile = "lima_search.pdf",
        urlaccessdate = "09 maio 2024"
}