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arXiv · 2108.11841

Does ADS 9346 have a low-mass companion?

O. V. Kiyaeva·M. Yu. Khovritchev·A. M. Kulikova·N. V. Narizhnaya·T. A. Vasilyeva·A. A. Apetyan·.
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Abstract

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

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O. V. Kiyaeva, M. Yu. Khovritchev, A. M. Kulikova, N. V. Narizhnaya, T. A. Vasilyeva, A. A. Apetyan, .. 2021-08-26. Does ADS 9346 have a low-mass companion?. https://doi.org/10.1088/1674-4527/21/11/291

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