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arXiv · 2408.15320

Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems

Carlos Jurado·Lauren M. Weiss·Laura Daclison·Benjamin M. Tofflemire·Jerome A. Orosz·William F. Welsh
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Abstract

We obtained new spectra of Kepler-34 and Kepler-35 with Keck-HIRES, nearly a decade after these systems were originally characterized with this spectrograph and other instruments, to search for RV trends from a potential third stellar-mass companion at long periods. For Kepler-34, we rule out coplanar stellar masses as low as $0.12 M_\odot$ at an orbital period of $\lesssim 52$ years. For Kepler-35, we rule out stellar masses of $0.13 M_\odot$ at orbital periods of $\lesssim 55$ years. Highly stable, extreme precision RV instruments, as well as improved methodologies in characterizing double-lined spectroscopic binaries that come with these new instruments, will provide an opportunity to push these mass limits lower in the future.

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Carlos Jurado, Lauren M. Weiss, Laura Daclison, Benjamin M. Tofflemire, Jerome A. Orosz, William F. Welsh. 2024-08-27. Upper Limits on Stellar Companions to the Kepler-34 and Kepler-35 Systems. https://arxiv.org/abs/2408.15320

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