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A Century of Radial-velocity and Astrometric Monitoring of 70 Oph AB: New PFS Data and Constraints on Possible Planetary Companions

  • Authors: Yiting Li, Michael R. Meyer, Skylar D'Angiolillo, Stephen R. Kane, R. Paul Butler, Stephen A. Shectman, Eric E. Mamajek, Johanna Teske, Jack Lubin, Paul Robertson, Jessie L. Christiansen, Howard Isaacson, Caleb K. Harada, Bradford Holden, William D. Cochran, Michael Endl, Jennifer Burt, Juliette Becker, Alyssa Jankowski, Peter Tuthill, Catherine A. Clark, Rachael M. Roettenbacher, Eric Nielsen, Eduardo Bendek, Armen Tokadjian, William Roberson, Kaitlin M. Kratter, Edwin Bergin, Dave Osip, Jeffrey D. Crane, Alex Davis, Gautam Vasisht

Yiting Li et al 2026 The Astrophysical Journal 1009 .

  • Provider: AAS Journals

Caption: Figure 5.

GLS periodograms of the nightly binned PFS RVs (top panels), Hα indices (middle panels), and spectral window functions (bottom panels) for 70 Oph A (left) and 70 Oph B (right). Note that the long-period binary orbital trend is not subtracted here. The dark-gray dotted and light-gray dashed horizontal lines mark the 0.1% and 1% FAP levels, respectively. Vertical orange shaded bands indicate significant peaks in the RV periodograms above the 0.1% FAP.

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