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Speckle-interferometric Study of Close Visual Binary System HIP 11253(HD 14874)using Gaia(DR2 and EDR3) 被引量:1
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作者 hussam aljboor Ali Taani 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2023年第7期221-228,共8页
We present a comprehensive set of physical and geometrical parameters for each of the components of the close visual binary system HIP 11253(HD 14874).We present an analysis for the binary and multiple stellar systems... We present a comprehensive set of physical and geometrical parameters for each of the components of the close visual binary system HIP 11253(HD 14874).We present an analysis for the binary and multiple stellar systems with the aim to obtain a match between the overall observational spectral energy distribution of the system and the spectral synthesis created from model atmospheres using Al-Wardat's method for analyzing binary and multiple stellar systems.The epoch positions are used to determine the orbital parameters and the total mass.The parameters of both components are derived as:T_(eff)^(a)=6025,T_(eff)^(b)=4710,logg_(a)=4.55,logg_(b)=4.60,R_(a)=1.125 R_(⊙),R_(b)=0.88R_(⊙),L_(a)=1.849 L_(⊙),L_(b)=0.342 L_(⊙).Our analysis shows that the spectral types of the components are F9 and K3.By combining the orbital solution with the parallax measurements of Gaia DR2 and EDR3,we estimate the individual masses using the H-R diagram as M_(a)=1.09 M_(⊙)and M_(b)=0.59 M_(⊙)for using Gaia DR2 parallax and M_(a)=1.10 M_(⊙)and M_(b)=0.61 M_(⊙)for using Gaia EDR3 parallax.Finally,the location of both system's components on the stellar evolutionary tracks is presented. 展开更多
关键词 (stars:)binaries:visual stars:kinematics and dynamics (stars:)binaries(including multiple):close techniques:interferometric techniques:spectroscopic
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Physical and orbital properties of the stellar system HIP 43766 被引量:1
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作者 Hatem Widyan hussam aljboor 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2021年第5期84-90,共7页
In this paper,we present the analysis of the stellar binary system HIP 43766 to determine its properties.We rely on dynamical modeling and atmospheric modeling with recent data to determine the orbital solution and th... In this paper,we present the analysis of the stellar binary system HIP 43766 to determine its properties.We rely on dynamical modeling and atmospheric modeling with recent data to determine the orbital solution and the physical properties of the system.There is a consistency between observed and synthetic photometry obtained using atmospheric modeling.The calculated dynamical mass sum of the system ranged between 1.691 and 2.609 solar masses,while it ranges between 2.0 and 2.1 as estimated utilizing atmospheric modeling.This could be due to inaccuracy in estimating the orbit,which could be modified with future observations with more relative positional measurements.The parameters of the system and the position of the components on the evolutionary tracks show that the system consists of F5 and G5 subgiant stars,mostly formed by fragmentation.A dynamical mass sum is predicted for the system. 展开更多
关键词 stars:binaries:close stars:binaries:visual stars:individual:HIP 43766
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