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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 1.

Science fiber flux as a function of wavelength for the GJ 251 NEID spectra taken on 2021 October 11. Each order of flux is centered around a different peak wavelength. The NEID spectrograph has 174 orders, though the instrument response is primarily meaningful for orders 52 through 174. Notable is the low S/N for the bluer orders. As an early M dwarf, GJ 251 contains most of its flux at longer wavelengths. The section highlighted in red corresponds to a peak order wavelength greater than 8000 Å. These red orders are used in our creation of “red” NEID RVs for GJ 251.

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