The Theory group studies a broad range of problems in astrophysics and cosmology. The group's research involves various physical processes operating in diverse environments and vastly different length scales: in planets, stars, and the interstellar medium; in supernovae and gamma-ray bursts; in galaxies, supermassive black holes, and the intergalactic medium; and in the universe as a whole. The Theory Group's research activities cover all the important epochs and events in the cosmic history, from the Big Bang to the ongoing processes in the solar system.

Research areas include:

Stellar Astrophysics

• Asteroseismology
• Gamma-ray Bursts
• Stellar Tidal Disruption
• Supernovae
• White Dwarfs

Planetary Sciences

• Astrobiology
• Planet Formation

Cosmology & Extragalactic Astrophysics

• Clusters of Galaxies
• Cosmic Reionization
• Early Universe
• First Stars & Galaxies
• Fundamental Physics
• Structure Formation

Galactic Evolution

• ISM and Star Formation
• Milky Way Evolution

High-energy Transient Phenomena

• Gamma-ray Bursts
• Stellar Tidal Disruption
• Supernovae
• Fast Radio Bursts
• Gravitational Waves

Computational Astrophysics