Physical and dynamical properties of the multiple system HD 222326

Details Physical and dynamical properties of the multiple system HD 222326 Physical and dynamical properties of the multiple system HD 222326

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007smma.conf...52z&link_type=abstract

Spectroscopic methods in modern astrophysics. Proceedings of the conference held 13-15 September 2006, Moscow, Russia. Eds. L. M

Astronomy and Astrophysics

Astrophysics

Scientific paper

In this work some results of the multiple system HD 222326 physical and dynamical parameters studying are presented. We suggest a new method for individual radial velocities Vri of wide binaries components determination when radial velocities difference is small (Δ V_r ≤ line profile FWHM). New method was approved on model systems and Vri for HD 222326 was determined using high-resolution spectra. For subsystems we have got improved orbital solutions based on speckle-interferometric observations. The combination of spectral and speckle observations allows us to determine components preliminary position on H-R diagram and their masses. Probably, all components are evolved and leaved the MS at the H-R diagram. Dynamical evolution of the HD 222326 analysis shows that system is stable at the timescale ≥ 10^{6} y .

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