========================================================================================== Bayesian Analysis for Stellar Evolution with Nine Parameters (BASE-9) v9.4.3 User’s Manual ========================================================================================== * Ted von Hippel * Embry-Riddle Aeronautical University, Daytona Beach, FL, USA; ted.vonhippel@erau.edu * Elliot Robinson * Argiope Technical Solutions, Ft White, FL, USA; elliot.robinson@argiopetech.com * Elizabeth Jeffery * Brigham Young University, Provo, UT, USA; ejeffery@byu.edu * Rachel Wagner-Kaiser * University of Florida, Gainesville, FL, USA; rawagnerkaiser@gmail.com * Steven DeGennaro * Studio 42, Austin, TX, USA; studiofortytwo@yahoo.com * Nathan Stein * University of Pennsylvania, Philadelphia, PA, USA; nathanmstein@gmail.com * David Stenning * University of California, Irvine, CA, USA; dstennin@uci.edu * William H Jefferys * University of Texas, Austin, TX, USA and University of Vermont, Burlington, VT, USA; bill@astro.as.utexas.edu * David van Dyk * Imperial College London, London, UK; d.van-dyk@imperial.ac.uk BASE-9 is a Bayesian software suite that recovers star cluster and stellar parameters from photometry. BASE-9 is useful for analyzing single-age, single-metallicity star clusters, binaries, or single stars, and for simulating such systems. BASE-9 uses Markov chain Monte Carlo and brute-force numerical integration techniques to estimate the posterior probability distributions for the age, metallicity, helium abundance, distance modulus, and line-of-sight absorption for a cluster, and the mass, binary mass ratio, and cluster membership probability for every stellar object. BASE-9 is provided as open source code on a version-controlled web server. The executables are also available as Amazon Elastic Compute Cloud images. This manual provides potential users with an overview of BASE-9, including instructions for installation and use. .. toctree:: :maxdepth: 2 Introduction Skip-the-install-and-go-to-the-cloud Installation Running-BASE-9 Diagnostics-of-run-quality Example-uses-of-BASE-9 Modifying-the-code-to-extend-its-capabilities