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Discovery of a Nearby Habitable Zone Super-Earth Candidate Amenable to Direct Imaging

Authors: Corey Beard, Paul Robertson, Jack Lubin, Eric B. Ford, Suvrath Mahadevan, Gudmundur Stefansson, Jason T. Wright, Eric Wolf, Vincent Kofman, Vidya Venkatesan, Ravi Kopparapu, Roan Arendtsz, Rae Holcomb, Raquel A. Martinez, Stephanie Sallum, Jacob K. Luhn, Chad F. Bender, Cullen H. Blake, William D. Cochran, Megan Delamer, Scott A. Diddams, Michael Endl, Samuel Halverson, Shubham Kanodia, Daniel M. Krolikowski, Andrea S. J. Lin, Sarah E. Logsdon, Michael W. McElwain, Andrew Monson, Joe P. Ninan, Jayadev Rajagopal, Arpita Roy, Christian Schwab, Ryan C. Terrien

Corey Beard et al 2025 The Astronomical Journal 170 .

Provider: AAS Journals

Caption: Figure 3.

GLS periodograms of GJ 251 RV data as we sequentially remove the most prominent signals. Black plots include white NEID data, while red plots include red NEID data. GJ 251 b is the most significant by far at first, but its subtraction reveals several other prominent signals. Eventually, subtracting signals only adds noise to the periodograms, so we cease our analysis. False alarm probabilities are estimated using methods in P. A. Sturrock & J. D. Scargle (2010). Signals of interest highlighted are at 14, 54, 68, 73, 120, and 130 days.

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