Does ADS 9346 have a low-mass companion?

作     者：Olga V.Kiyaeva Maxim Yu.Khovritchev Agrippina M.Kulikova Natalya V.Narizhnaya Tatyana A.Vasilyeva Arina A.Apetyan Olga V.Kiyaeva;Maxim Yu.Khovritchev;Agrippina M.Kulikova;Natalya V.Narizhnaya;Tatyana A.Vasilyeva;Arina A.Apetyan

作者机构：Central Astronomical ObservatoryRussian Academy of Sciences65/1 Pulkovskoye ChausseeSt.Petersburg196140Russia 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第11期

页      面：202-212页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：RFBR according to the research projects 19-02-00843 A and 20-02-00563 A and with partial support of the grant 075-15-2020-780 from the Government of the Russian Federation and the Ministry of Higher Education and Science 

主　　题：(stars:)binaries:visual stars:low-mass stars:individual(ADS 9346) 

摘      要：Based on the photographic and CCD observations of the relative motion of the A and B components of the binary system ADS 9346 obtained with the 26-inch refractor of Pulkovo Observatory during 1979–2019,we discover an invisible companion associated with star *** of the ephemerides with the positional and spectroscopic observations allowed us to calculate the preliminary orbit of the photocenter(P=15 yr).The minimal mass of the companion is approximately 0.13 *** existence of the invisible low-mass companion is implied by the IR-excess based on IRAS *** confirm this,additional observations of the radial velocity near the periastron need to be carried out.