HD 163151: a new W UMa type system
Diğer yayınlar > Diğer · 1998
Yazarlar: Rodriguez, E., Claret, A., Garcia, J.M., Zerbi, F.M., Garrido, R., Martin, S., Akan, C., Luedeke, K., Keskin, V., Ibanoglu, C., Mustafa Serdar EVREN, Tunca, Z., Pekunlu, R., Paparo, M., Nuspl, J., Krisciunas, K., Jiang, S.Y.
Diğer, Uluslararası, 1998,
Özet
Abstract. HD 163151 is discovered to be a new variable as apart of a W UMa system. In this paper we present completeuvby light curves. Additional Crawford H β and Johnson BVdata are also obtained. A detailed photometric analysis basedon these observations is presented using the WD code. Severaltests have been carried out concerning mass ratio and effectivetemperatures. The best fitting was achieved with q = 0.27 andT 1 =6450 K (fixed) and T 2 = 6130 K. Moreover, the light curvesshow evidences of spots in one of the components.Key words: binaries: visual – stars: individual: HD 163151 –stars: fundamental parameters – techniques: photometric1. IntroductionDuring the course of a photometric and multicolor multisitecampaignontheγDorvariableHD164615,thestarHD163151(HR 6676, BD +11 ◦ 3283) was used as a check star, but itsdifferential photometry was discovered to be variable showinglightcurvessimilartothoseofclosebinarysystems,inparticulara W UMa system, with a period of about 0. d 8 and luminosityvariation in the primary minimum of about 0.