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Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Resumen
KIRAN, E.; BAKIş, V.; BAKIş, H. y DEğGIRMENCI, Ö. L.. The first detailed analysis on the astrophysical properties of the eccentric binary V990 Her. Rev. mex. astron. astrofis [online]. 2021, vol.57, n.2, pp.363-379. Epub 15-Feb-2022. ISSN 0185-1101. https://doi.org/10.22201/ia.01851101p.2021.57.02.09.
We present accurate physical parameters of the eccentric binary system V990 Her which has an orbital period of P = 8.193315±0.000003 days using its photometric and spectroscopic data. The physical parameters of the components were derived as = K, = K, = , = , = , = , , . Our findings revealed that both components are slightly evolved from the zero-age main sequence with an age of years. We estimated an apsidal motion with a period of years in the system and the internal structure constants of the components were derived for the first time.