Physical and Dynamical Parameters of the Triple Stellar System: HIP 109951
- Авторы: Masda S.G.1, Docobo J.A.2,3, Hussein A.M.1, Mardini M.K.4,5, Al-Ameryeen H.A.2, Campo P.P.2, Khan A.R.1, Pathan J.M.1
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Учреждения:
- Department of Physics
- Observatorio Astronómico Ramón María Aller
- Real Academia de Ciencias de Zaragoza
- Key Lab of Optical Astronomy, National Astronomical Observatories
- School of Astronomy and Space Science
- Выпуск: Том 74, № 4 (2019)
- Страницы: 464-474
- Раздел: Article
- URL: https://journals.rcsi.science/1990-3413/article/view/213016
- DOI: https://doi.org/10.1134/S1990341319040126
- ID: 213016
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Аннотация
The precise determination of the physical and dynamical parameters of the HIP 109951 triple star system (WDS J22161-0705AB) which is formed by the A, Ba, and Bb components are presented. The binary nature of component B was recently confirmed by studying the radial velocities. The analysis of the system follows Al-Wardat's complex method for analyzing CVBS which employs Kurucz (Atlas9) line blanketed plane-parallel atmospheres simultaneously with an analytic method for dynamical analysis (we used Docobo's method) to calculate the parameters of this triple system. The result of our study yielded the following parameters: TAeff = 5836 ± 80 K, RA = 1.090 ± 0.039R⊙, log gA = 4.45 ± 0.06, MA = 1.05 ± 0.16M⊙; TBaeff = 5115 ± 80 K, RBa = 0.596 ± 0.05R⊙, log gBa = 4.60 ± 0.07, MBa = 0.83 ± 0.16M⊙, TBbeff = 4500 ± 80 K, RBb = 0.490 ± 0.06R⊙, log gBb = 4.65 ± 0.07, and MBb = 0.67 ± 0.16M⊙ based on the revised HIPPARCOS parallax. The orbital solution gave a total mass as M = 2.59M⊙ based on Gaia parallax and M = 2.15M⊙ based on the revised HIPPARCOS parallax. The synthetic spectral energy distributions (SED) and synthetic stellar photometry of the entire system and individual components are given and compared with the available observational ones. Finally, the positions of the system components on the HR diagram and the evolutionary tracks are given and their formation and the evolution of the system are discussed.
Об авторах
S. Masda
Department of Physics; Department of Physics
Автор, ответственный за переписку.
Email: suhail.masda@gmail.com
Индия, Aurangabad, 431001; Mukalla, 50512
J. Docobo
Observatorio Astronómico Ramón María Aller; Real Academia de Ciencias de Zaragoza
Автор, ответственный за переписку.
Email: joseangel.docobo@usc.es
Испания, Santiago de Compostela, 15782; Zaragoza, 50009
A. Hussein
Department of Physics
Email: joseangel.docobo@usc.es
Иордания, Mafraq, 25113
M. Mardini
Key Lab of Optical Astronomy, National Astronomical Observatories; School of Astronomy and Space Science
Email: joseangel.docobo@usc.es
Китай, Beijing, 100012; Beijing, 210093
H. Al-Ameryeen
Observatorio Astronómico Ramón María Aller
Email: joseangel.docobo@usc.es
Испания, Santiago de Compostela, 15782
P. Campo
Observatorio Astronómico Ramón María Aller
Email: joseangel.docobo@usc.es
Испания, Santiago de Compostela, 15782
A. Khan
Department of Physics
Email: joseangel.docobo@usc.es
Индия, Aurangabad, 431001
J. Pathan
Department of Physics
Email: joseangel.docobo@usc.es
Индия, Aurangabad, 431001
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