Lorenzo Sironi


My field of research is theoretical high-energy astrophysics.

I investigate the origin of non-thermal emission from Pulsar Wind Nebulae (PWNe), AGN jets, fast radio bursts (FRBs), gamma-ray bursts (GRBs), supernovae, galaxy clusters, and low-luminosity accretion flows like Sgr A* around the supermassive black hole at the center of our Galaxy.

It is still a mystery how these objects can accelerate particles up to the highly non-thermal energies required to explain the observed emission, that typically extends from the radio up to the gamma-ray band.

By means of ab initio large-scale plasma simulations, I investigate particle acceleration in shocks, turbulence and magnetic reconnection from first principles, with the aim of using the simulations to interpret the observations, and ultimately unveil the nature of astrophysical non-thermal sources.

Here you can find my CV and publication list.

Group pictures are here.

Department of Astronomy

Pupin Hall 1012

Columbia University

550 West 120th street

New York, NY 10027


Email: lsironi@astro.columbia.edu

Assistant Professor                    2016-present

Astronomy Department, Columbia                       

Harvard ITC Fellow                    2015-2016

NASA Einstein Fellow                2012-2015

PhD                                            2011

Dept. of Astrophysical Sciences, Princeton

Recent group news

Oct 2019: Navin awarded the YEH Family Endowment Fellowship.

Sept 2019: Emily Simon awarded first prize at the undergraduate poster session at Columbia Astrofest.

Sept 2019: Daniel Groselj awarded the 2019 DOE Fusion Energy Sciences Postdoctoral Research Fellowship.

Feb 2019: Lorenzo awarded the Alfred P. Sloan Research Fellowship in Physics.

Jan 2019: Rafael Colon (Bridge to PhD student) admitted to Cornell PhD program in Biophysics.

Jan 2019: Navin Sridhar (PhD student) interviewed on International Spotlight by the International Students and Scholars Office at Columbia.