In 2002,2004 and 2017 we conducted high precision CCD photometry observations of the eclipsing binary system AS Cam.By analysis of the light curves from 1967 to 2017（our data ＋ data from the literature） we obtained...In 2002,2004 and 2017 we conducted high precision CCD photometry observations of the eclipsing binary system AS Cam.By analysis of the light curves from 1967 to 2017（our data ＋ data from the literature） we obtained photometric elements of the system and found a change in the system＇s orbital eccentricity of ？e = 0.03 ± 0.01.This change can indicate that there is a third companion in the system in a highly inclined orbit with respect to the orbital plane of the central binary,and its gravitational influence may cause the discrepancy between observed and theoretical apsidal motion rates of AS Cam.展开更多
基金supported by the funding program BR05236322 of the Ministry of Education and Science RKa grant for Leading Scientific Schools NSh-9670.2016.2(Russia)
文摘In 2002,2004 and 2017 we conducted high precision CCD photometry observations of the eclipsing binary system AS Cam.By analysis of the light curves from 1967 to 2017（our data ＋ data from the literature） we obtained photometric elements of the system and found a change in the system＇s orbital eccentricity of ？e = 0.03 ± 0.01.This change can indicate that there is a third companion in the system in a highly inclined orbit with respect to the orbital plane of the central binary,and its gravitational influence may cause the discrepancy between observed and theoretical apsidal motion rates of AS Cam.
