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The MIRI Excesses Around Degenerates (MEAD) Survey. II. A Probable Planet Detected via IR Excess around WD 0644+025

  • Authors: Sabrina Poulsen, John Debes, Ashley Messier, Érika Le Bourdais, Carl Melis, Misty Cracraft, Samuel Boucher, Mukremin Kilic, Scott Kenyon, Mark C. Wyatt, Seth Redfield, Patrick Dufour, Loic Albert, Susan E. Mullally, William T. Reach, Fergal Mullally, David A. Golimowski

Sabrina Poulsen et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 2.

Probability distributions for the age, initial mass, and final mass of WD 0644+025 derived using wdwarfdate (R. Kiman et al. 2022). The values Teff = 6943 ± 68 K and log g = 8.555 ± 0.013 were used for input values. The DA cooling models (A. Bédard et al. 2020), MIST-based initial-final mass relation (IFMR; J. D. Cummings et al. 2018), and [Fe/H] = 0.0, v/vcrit = 0.0 (J. Choi et al. 2016; A. Dotter 2016) were chosen for the model WD, model IFMR, and isochrone of the progenitor star, respectively.

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