Honors & Awards
Feoder Lynen Research Fellowship, Humboldt Foundation (November 2016)
Otto Stern Prize, University of Hamburg, Department of Physics (December 2010)
Boards, Advisory Committees, Professional Organizations
Converner of the Dark Matter and New Physics Working Group, Fermi-LAT Collaboration (2017 - Present)
Member, CTA Consortium (2013 - Present)
Associate member (former deputy convener of the Astroparticle Working Group), H.E.S.S. Collaboration (2012 - Present)
Doctor of Philosophy, Universitat Hamburg (2013)
Roger Blandford, Postdoctoral Faculty Sponsor
Current Research and Scholarly Interests
My research is devoted to the field of high energy particle astrophysics. It focuses on the study of gamma-ray propagation and absorption on background radiation fields, as well as the search for axion-like particles (ALPs).
Please see my personal homepage for further details.
Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
2018; 361 (6398): 146-+
Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of ~290 tera-electron volts. Its arrival direction was consistent with the location of a known γ-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to γ-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy γ-rays. This observation of a neutrino in spatial coincidence with a γ-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.
View details for DOI 10.1126/science.aat1378
View details for Web of Science ID 000438449200037
View details for PubMedID 30002226