Tools

This page collects together various web-based tools that I've created and/or extended.

Stellar Structure & Evolution

• MESA-Web, a web interface to the MESA stellar evolution code. I make extensive use of MESA-Web in teaching stellar structure and evolution in my Astronomy 310 class.
• EZ-Web, a web interface to Bill Paxton's Evolve ZAMS stellar evolution code. EZ-Web has been superseded by MESA-Web, but I continue to support it as a legacy service.
• Poly-Web, an on-line code for calculating polytropes — simplified stellar models that obey a polytropic equation of state.
• OC-Web, a collection of web-based interfaces to the codes accompanying the textbook An Introduction to Modern Stellar Astrophysics (Ostlie & Carroll).

Time

• An ephemeris tool for predicting the times of periodic phenomena in various stars I'm interested in (MiMeS version here)
• A geochron I created, showing the regions of the Earth's surface in daylight and in shadow.