Moving Planets Around

An introduction to the laws of celestial mechanics and a step-by-step guide to developing software for direct use in astrophysics research.

This book offers both an introduction to the laws of celestial mechanics and a step-by-step guide to developing software for direct use in astrophysics research. It bridges the gap between conventional textbooks, which present a rigorous and exhaustive exposition of theoretical concepts, and applying the theory to tackle real experiments. The text is written engagingly in dialogue form, presenting the research journey of the fictional Alice, Bob, and Professor Starmover. Moving Planets Around not only educates students on the laws of Newtonian gravity, it also provides all that they need to start writing their own software, from scratch, for simulating the dynamical evolution of planets and exoplanets, stars, or other heavenly bodies.

The first half of the book develops a fully functional N-body integrator, using state-of-the art integration techniques, explaining both the techniques and the reasons that they are useful. The second half of the book focuses on using an advanced integration scheme to conduct real research, leading students in an investigation of the long-term dynamical stability of extrasolar circumbinary planets. At the end of the journey, students will be ready to design, conduct, and publish peer-review quality research.

1 A Bestiary of Planets
2 Physics Background
3 First Two-Body Code
4 Accuracy and Performance of the Integration
5 Fixed Step-Size Integration
6 Variable Step-Size Integration
7 The Three- and N-Body Problems
8 Gauss-Radau Integrator of Fifteenth Order
9 Symplectic Map for Long-Term Integration
10 Building a Production Code
11 Defining the Project
12 Setting Up the Project
13 Running and Analyzing the Simulations
14 How to Write a Publishable Research Paper
15 ConclusionsJavier Roa is a Navigation Engineer in the Solar Systems Dynamics Group at the California Institute of Technology's Jet Propulsion Lab.

Adrian S. Hamers is Max Planck Research Group Leader at the Max Planck Institute for Astrophysics, Garching, Germany.

Maxwell X. Cai is an advisor on artificial intelligence at the SURF Cooperative (Dutch National Supercomputing Center), and Research Associate at Leiden University.

Nathan W. C. Leigh is Assistant Professor of Astrophysics at the Universidad de Concepcion, Chile, and Research Scientist at the American Museum of Natural History, New York.An introduction to the laws of celestial mechanics and a step-by-step guide to developing software for direct use in astrophysics research.