Figure 28 from The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and Y Dwarfs

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The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and Y Dwarfs

Authors: J. Davy Kirkpatrick, Christopher R. Gelino, Jacqueline K. Faherty, Aaron M. Meisner, Dan Caselden, Adam C. Schneider, Federico Marocco, Alfred J. Cayago, R. L. Smart, Peter R. Eisenhardt, Marc J. Kuchner, Edward L. Wright, Michael C. Cushing, Katelyn N. Allers, Daniella C. Bardalez Gagliuffi, Adam J. Burgasser, Jonathan Gagné, Sarah E. Logsdon, Emily C. Martin, James G. Ingalls, Patrick J. Lowrance, Ellianna S. Abrahams, Christian Aganze, Roman Gerasimov, Eileen C. Gonzales, Chih-Chun Hsu, Nikita Kamraj, Rocio Kiman, Jon Rees, Christopher Theissen, Kareem Ammar, Nikolaj Stevnbak Andersen, Paul Beaulieu, Guillaume Colin, Charles A. Elachi, Samuel J. Goodman, Léopold Gramaize, Leslie K. Hamlet, Justin Hong, Alexander Jonkeren, Mohammed Khalil, David W. Martin, William Pendrill, Benjamin Pumphrey, Austin Rothermich, Arttu Sainio, Andres Stenner, Christopher Tanner, Melina Thévenot, Nikita V. Voloshin, Jim Walla, and Zbigniew Wędracki

2021 The Astrophysical Journal Supplement Series 253 7.

Provider: AAS Journals

Caption: Figure 28.

Best fits between the simulations and our measured space densities. Of the simulations that use the evolutionary tracks of Baraffe et al. (2003), the two with the smallest reduced χ² values are shown in the top two rows. Of the simulations that use the evolutionary tracks of Saumon & Marley (2008), the two that provide the best fits are show in the two bottom rows. “Model D” refers to the power law with α = 0.5, and “Model H” refers to the single-object log-normal form of Chabrier (2001). See Kirkpatrick et al. (2019a) for additional information on these simulations. Each row shows the same model with a different low-mass cutoff: 10M_Jup (blue) in the left panel, 5M_Jup (dark green) in the middle panel, and 1M_Jup (red) in the right panel. Our measured space densities and their uncertainties are shown in black. Gray zones denote areas not covered by the simulations.

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