Dynamical investigation of the multiple star ADS 9173 AB
Abstract
Star ADS 9173=WDS 14135+5147=Hip 69483 is a complex system. The B component has a spectroscopic companion, whose orbit with a period of 4.9 years has been known since 1986. The Gaia telescope has detected a distant faint pair over 100 arcsec away from the bright AB pair. In our article, we study the movement in a bright pair based on long-term observations with the 26-inch refractor of the Pulkovo Observatory. The AB pair orbit with a period of 6306 years was calculated using the apparent motion parameters (AMP) method. The astrometric orbit of the component B was determined on the basis of the residuals of the homogeneous CCD observations up to 2023 with the 26-inch refractor. It is in agreement with the spectroscopic one. The remaining secondary residuals show a wave with a period of approximately 20 years, the reasons for which are discussed.
Keywords
Cite
@article{arxiv.2307.16861,
title = {Dynamical investigation of the multiple star ADS 9173 AB},
author = {O. V. Kiyaeva and I. S. Izmailov and N. V. Narizhnaya and L. G. Romanenko},
journal= {arXiv preprint arXiv:2307.16861},
year = {2023}
}
Comments
11 pages, 7 figures, 4 tables