Topics

My research interests lie in the wide field of Astroparticle Physics, some focus areas are listed below:
Relativistic plasma outflows and pulsar wind nebulae: relativistic plasma outflows are emitted by neutron stars and black holes. Pulsar wind nebulae are our best cosmic laboratories to study relativistic plasmas, with the aim to understand how plasma turbulence develops and how cosmic rays are accelerated.
The variable gamma−ray sky in the multi−messenger era: the search for gravitational waves and high−energy neutrinos sources has just begun. Gamma-ray monitoring of the sky is a key to clarify the nature of these sources.
Future gamma−ray telescopes: development of more sensitive gamma−ray missions at MeV and TeV photon energies.
Cosmological and fundamental physics implications of high-energy observations: the gamma-ray emission of Active Galactic Nuclei can be used to infer the density of the Extragalactic Background Light and to set limits on speed of light modifications due to Lorentz Invariance violations.
For more details see the publication list.

Groups

I am currently a member of the gamma-ray group and coordinating the Fermi-LAT and MeVCube groups at DESY Zeuthen. I am a member of the CTA and Fermi-LAT collaborations.

Students

I have supervised the following PhD theses:
Since 2017 Giulio Lucchetta Development of a Compton camera for nano-satellites
Since 2016 Galo Gallardo Search for Axion Like Particles in gamma rays
2014 - 2016 Matteo Giommi Measuring gamma-ray polarization with the Fermi-LAT and the second catalog of flaring gamma-ray sources (see article1 / article2)
2012 - 2014 Michael Mayer The gamma-ray flare of the Crab Nebula in March 2013 (part of the thesis, see article)
2011 - 2012 Alice Allafort A catalog of flaring gamma-ray sources seen by the Fermi-LAT (part of the thesis, see article)