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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 12.

Detection completeness for 70 Oph A (left) and 70 Oph B (right) derived using rvsearch injection–recovery simulations. Synthetic Keplerian signals were injected into the RV data assuming circular orbits (e = 0). The completeness map for 70 Oph A uses the combined Keck/HIRES, APF, and PFS dataset, while the map for 70 Oph B is based on the high-cadence PFS data alone. Background shading indicates the interpolated recovery probability as a function of semimajor axis and ﹩M\sin i﹩. Individual injection trials are shown as points, with blue circles denoting recovered signals and red circles indicating nonrecovered signals. The solid black curve marks the 50% completeness contour, and the other gradient contour lines show completeness levels from 10% to 90%.

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