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NGTS-EB-8: A Double-lined Eclipsing M+M Binary Discovered by Citizen Scientists

Authors: Sean M. O'Brien, Megan E. Schwamb, Christopher A. Watson, Louise D. Nielsen, Edward M. Bryant, Sarah L. Casewell, Matthew R. Burleigh, Lucy Fortson, Samuel Gill, Chris J. Lintott, Katlyn L. Hobbs, Ioannis Apergis, Daniel Bayliss, Jorge Fernández Fernández, Maximilian N. Günther, Faith Hawthorn, James S. Jenkins, Alicia Kendall, James McCormac, Ernst J. W. de Mooij, Toby Rodel, Suman Saha, Laura Trouille, Richard G. West, Peter J. Wheatley, Marius Constantin Agafitei, Deniz Rüzgar Apaydın, Elisabeth Baeten, Bruce Baller, Jeff Carabott, Sallyann Chesson, Sebastián Alejandro Freigeiro, Virgilio Gonano, Matthias Hanke, Pete Hermes, Avery Hildebrand, John S. Langley, See Min Lim, Leo Ryan McCarthy, Graham Mitchell, Ken O'Neill, Charles R. Pearson, Nolan Reket, Jeanne Riethmiller, Juergen Saeftel, Arttu Sainio, Charlie Steiner, Amanda Strickland, Christopher Tanner, Ivan A. Terentev, Ernest Jude P. Tiu, Sergey Y. Tumanov, Marciniak Urszula, Pia Vahlenkamp, Femke de Vroome, Paweł Wantuch, Timothy Woodruff

Sean M. O’Brien et al 2025 The Astronomical Journal 170 .

Provider: AAS Journals

Caption: Figure 13.

Gaia DR3 HR diagrams for all stars within 100 pc with the median fiducial tracking the main sequence in blue and the same fiducial shifted by −0.753 mag in green, corresponding to the position of unresolved binaries composed of two identical stars. NGTS-EB-8 is shown as a cyan star, and the inset shows the region zoomed in around NGTS-EB-8. Low-mass host stars of confirmed exoplanets, TOIs, and candidates identified by B23 are overplotted, colored by TFOPWG/B23 disposition. Confirmed/known planets are shown as black filled circles, (ambiguous) planetary candidates are shown as open black circles, and false positives are shown as gray circles. Binary systems hosting confirmed planets, Kepler-16 and TOI-762, are shown as lime-green filled circles.

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