Giannios Group

- High Energy Astrophysics

Welcome to our webpage

Centaurus A

Centaurus A; credit ESA/NASA

Research Interests

High-energy astrophysics:

  • Theoretical study of the physics of relativistic flows
  • Acceleration, composition of ultra-high-energy cosmic rays
  • The central engine of gamma-ray bursts
  • Accretion and transients in the Galactic center


  • Mergers of compact objects; gravitational wave and electromagnetic signals

Recent Group News

August 2022: Lingyi just graduated our department's PhD program! Dr. Dong will join McKinsey consulting in Boston.

May 2019: Adithan just graduated our department's PhD program! Dr. Kathirgamaraju will continue his career as a postdoctoral Fellow at Berkeley.

May 2018: New strong observational evidence of our structured jet model for neutron star mergers are obtained.

May 2018: Ian just graduated our department's PhD program! Dr. Christie will continue his career with a postdoctoral appointment at the Northwestern University.

April 2018: Ian receives 2 prestigious awards for his PhD work: the Charlotte Ida Litman Tubis Award and the George W. Tautfest Award. The first is awarded to the student who promotes clear and concise communication of scientific ideas beyond the physics and astronomy community while the latter honors the most outstanding physics graduate student in high energy particle physics, high energy nuclear physics, or astrophysics. Congratulations Ian!

December 2017: Our structured jet prediction for the prompt and afterglow emission from the first-ever detection of gravitational waves from a merger of 2 neutron stars is nicely supported by observations.

August 2017: Our comprehensive study on the stability of relativistic jets appears to the Purdue Research highlights and receives extensive publicity: here, here, and here

March 2017: Great career advancement for the group's postdocs. Maria has been awarded the prestigious Lyman Spitzer, Jr. Postdoctoral Fellowship at Princeton University. Rodolfo has just accepted a tenure-track position at the Department of Physics and Astronomy at California State University Sacramento. Both positions start this Fall.

March 2017: Work from Ian, Maria, and Dimitrios Highlighted by Nature Astronomy.

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