schulze61/RhoPop: RhoPop
Description
A software for identifying small-planet populations. RhoPop employs Gaussian mixture models in a hierarchical framework. RhoPop includes a density-mass grid of water-rich compositions from water mass fraction (WMF) 0-1.0 and a grid of volatile-free rocky compositions over a core mass fraction (CMF) range of 0.006-0.95. Both grids were calculated using the ExoPlex mass-radius-composition calculator (https://github.com/CaymanUnterborn/ExoPlex , Unterborn+ 2023). We use the dynesty nested sampler for parameter and evidence estimation (https://doi.org/10.5281/zenodo.8408702, Speagle, J.S., 2020, Skilling 2004, Skilling 2006, Feroz, F., Hobson, M.P. and Bridges, M., 2009, Neal, R.M., 2003, Handley, W.J., Hobson, M.P. and Lasenby, A.N., 2015a, Handley, W.J., Hobson, M.P. and Lasenby, A.N., 2015b).
We have included two small-planet datasets from the literature: (1) the sample of precisely measured (mass and radius uncertainties of less thant 25% and 8%, respectively) planets around M dwarfs from Luque & Palle (2022) except those the authors identify as sub-Neptunes and (2) the sample of precisely measured planets (mass and radius uncertainties of less than 30%) around FGK stars of Adibekyan+ (2021).
The dynesty package is licensed under the MIT license
The MIT License (MIT)
Copyright (c) 2017 - Present: Josh Speagle and contributors.
Copyright (c) 2014 - 2017: Kyle Barbary and contributors.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
Files
schulze61/RhoPop-v1.0.0.zip
Files
(4.4 MB)
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Additional details
Related works
- Is supplement to
- Software: https://github.com/schulze61/RhoPop/tree/v1.0.0 (URL)
References
- Adibekyan, V., Dorn, C., Sousa, S.G., Santos, N.C., Bitsch, B., Israelian, G., Mordasini, C., Barros, S.C., Delgado Mena, E., Demangeon, O.D. and Faria, J.P., 2021. A compositional link between rocky exoplanets and their host stars. Science, 374(6565), pp.330-332.
- Luque, R. and Pallé, E., 2022. Density, not radius, separates rocky and water-rich small planets orbiting M dwarf stars. Science, 377(6611), pp.1211-1214.
- Unterborn, C.T., Desch, S.J., Haldemann, J., Lorenzo, A., Schulze, J.G., Hinkel, N.R. and Panero, W.R., 2023. The Nominal Ranges of Rocky Planet Masses, Radii, Surface Gravities, and Bulk Densities. The Astrophysical Journal, 944(1), p.42.
- Sergey Koposov, Josh Speagle, Kyle Barbary, Gregory Ashton, Ed Bennett, Johannes Buchner, Carl Scheffler, Ben Cook, Colm Talbot, James Guillochon, Patricio Cubillos, Andrés Asensio Ramos, Ben Johnson, Dustin Lang, Ilya, Matthieu Dartiailh, Alex Nitz, Andrew McCluskey, & Anne Archibald. (2023). joshspeagle/dynesty: v2.1.3 (v2.1.3). Zenodo. https://doi.org/10.5281/zenodo.8408702
- Speagle, J.S., 2020. DYNESTY: a dynamic nested sampling package for estimating Bayesian posteriors and evidences. Monthly Notices of the Royal Astronomical Society, 493(3), pp.3132-3158.
- Skilling, J., 2004, November. Nested sampling. In Aip conference proceedings (Vol. 735, No. 1, pp. 395-405). American Institute of Physics.
- John Skilling. "Nested sampling for general Bayesian computation." Bayesian Anal. 1 (4) 833 - 859, December 2006. https://doi.org/10.1214/06-BA127
- Feroz, F., Hobson, M.P. and Bridges, M., 2009. MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics. Monthly Notices of the Royal Astronomical Society, 398(4), pp.1601-1614.
- Neal, R.M., 2003. Slice sampling. The annals of statistics, 31(3), pp.705-767.
- Handley, W.J., Hobson, M.P. and Lasenby, A.N., 2015. POLYCHORD: next-generation nested sampling. Monthly Notices of the Royal Astronomical Society, 453(4), pp.4384-4398.
- Handley, W.J., Hobson, M.P. and Lasenby, A.N., 2015. PolyChord: nested sampling for cosmology. Monthly Notices of the Royal Astronomical Society: Letters, 450(1), pp.L61-L65.