@Article{ChristopoulouLaPaLoCaDr:2022:NeLoMa,
               author = "Christopoulou, Panagiota-Eleftheria and Lalounta, Eleni and 
                         Papgeourgiou, Athanasios and Lopes, Carlos Eduardo Ferreira and 
                         Catelan, M{\'a}rcio and Drake, Andrew J.",
          affiliation = "{University of Patras} and {University of Patras} and {University 
                         of Patras} and {Instituto Nacional de Pesquisas Espaciais (INPE)} 
                         and {Pontificia Universidad Catolica de Chile} and {California 
                         Institute of Technology}",
                title = "New low mass ratio contact binaries in the Catalina Sky Survey",
              journal = "Monthly Notices of the Royal Astronomical Society",
                 year = "2022",
               volume = "512",
               number = "1",
                pages = "1244--1261",
                month = "May",
             keywords = "binaries: close, binaries: eclipsing, stars: evolution, stars: 
                         fundamental parameters, surveys.",
             abstract = "We present the identification and photometric analysis of 30 new 
                         low mass ratio (LMR) totally eclipsing contact binaries found in 
                         Catalina Sky Survey data. The LMR candidates are identified using 
                         Fourier coefficients and visual inspection. We perform a detailed 
                         scan in the parameter plane of mass ratio (q) versus inclination 
                         (i) using phoebe -0.31 scripter to derive the best (q, i) pair for 
                         the initial models. The relative physical parameters are 
                         determined from the final model of each system. A Monte Carlo 
                         approach was adopted to derive the parameter errors. The resulting 
                         parameters confirm the identification. The approximate absolute 
                         physical parameters of the systems are estimated based on the 
                         light-curve solutions and Gaia Early Data Release 3 distances. 12 
                         out of 30 new systems have fill-out factors f> 50 and q \≤ 
                         0.25 (deep contact LMR systems), and eight of them, to within 
                         errors, are extreme LMR deep systems with q \≤ 0.1. We 
                         discuss the evolutionary status of the 30 LMR systems in 
                         comparison with the most updated catalogue of LMR systems from the 
                         literature. The scenario of the LMR systems as pre-merger 
                         candidates forming fast rotating stars is investigated for all 
                         systems, new and old, based both on Hut's stability criteria and 
                         critical instability mass ratio (qinst) relation. 
                         CSS\J075848.2+125656, with q/qinst = 1.23 ± 0.23, and 
                         CSS\J093010.1-021624, with q/qinst = 1.25 ± 0.23, can be 
                         considered as merger candidates. Begin end{eqnarray}.",
                  doi = "10.1093/mnras/stac534",
                  url = "http://dx.doi.org/10.1093/mnras/stac534",
                 issn = "0035-8711 and 1365-2966",
             language = "en",
           targetfile = "stac534.pdf",
        urlaccessdate = "14 jun. 2024"
}