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Dr. Lars Mohrmann

Dr. Lars Mohrmann


Welcome to my personal page. You can find some information about my current and past research activities below. I also organize the weekly meeting of our gamma-ray astronomy group since 2015 and am co-organizer of the ECAP seminar since 2016.


  • Summer term 2019
    Tutor + organisation of exercise classes for “Integrated Course 3: Nuclear and Particle Physics” (Advanced physics course)
  • Winter term 2018/19
    Tutor + organisation of exercise classes for “Introduction to Astroparticle Physics” lecture (Master course)
  • Summer term 2018
    Tutor + organisation of exercise classes for “Advanced Particle and Astroparticle Physics (EV-B)” lecture (Master course)
  • Winter term 2017/18
    Tutor for “Kern- und Teilchenphysik (EP-5)” lecture (Bachelor course)
  • Summer term 2017
    Tutor for “Advanced Particle and Astroparticle Physics (EV-B)” lecture (Master course)
  • Winter term 2015/16,  summer term 2016, winter term 2016/17
    Supervision of advanced lab course experiment “Compton effect”


Supervised Bachelor/Master theses

Jacky Catalano: Towards a new Analysis of the Super Star Cluster Westerlund 1 (Master thesis, March 2019, shared supervision with C. van Eldik) ECAP-2019-003

Christopher Sobel: Development and Characterization of a Field-of-View Background Model for the High Energy Stereoscopic System (Master thesis, May 2018) ECAP-2018-012

Maximilian Schandri: Investigation of Observation Quality Parameters for H.E.S.S.-II (Master thesis, March 2018) ECAP-2018-008

Christopher Schönwälder: Simulationsstudien zum Nachthimmel-Untergrund beim GCT-Teleskop für das Cherenkov Telescope Array (Bachelor thesis, May 2016) ECAP-2016-010

My current research is focused on gamma-ray astronomy, in particular the study of Galactic sources of high-energy gamma rays. One of my recent contributions was on the detection of the pulsar PSR B1706-44 with H.E.S.S.;this is only the fourth gamma-ray pulsar detected from the ground. I am a member of the H.E.S.S. Collaboration and the CTA Consortium.

I am also interested in the development of open-source tools for gamma-ray astronomy. In this context, I have made some contributions to the Gammapy software package and have helped preparing the first H.E.S.S. public data release.

Previously, I have been a member of the IceCube Collaboration. During that time, I have carried out a measurement of the energy spectrum and the flavor composition of the cosmic neutrino flux observed with the IceCube experiment. For more details, check the corresponding publication or have a look into my PhD thesis.


  • Global Neutrino Network (GNN) Dissertation Prize 2016
  • Nomination for the dissertation award of the German physical society (DPG) 2017
    One out of four final candidates, invited plenary presentation at the 2017 spring meeting of the DPG (see “Presentations”)
  • H.E.S.S. Prize Spring 2019
    Bi-annual award, received from the H.E.S.S. Collaboration for “outstanding contributions to the experiment”
    H.E.S.S. prize web page
  • Towards a 3D likelihood analysis in very-high-energy γ-ray astronomy: the case of H.E.S.S.
    Contributed poster at the International Cosmic Ray Conference (ICRC) 2019
    Madison, WI, USA, July 2019
    Poster / Proceedings paper
  • Towards high-level data analysis with open-source tools in H.E.S.S.
    Invited talk at the PyGamma19 workshop
    Heidelberg, March 2019
  • Characterizing Cosmic Neutrino Sources: A Measurement of the Energy Spectrum and Flavor Composition of the Cosmic Neutrino Flux Observed with the IceCube Neutrino Observatory
    Invited plenary talk in the Symposium Dissertationspreis der Fachverbände GR/T/HK at the 2017 spring meeting of the German physical society (DPG)
    Münster, March 2017
  • Characterization of the Astrophysical Neutrino Flux at the IceCube Neutrino Observatory
    Contributed talk at the Topics in Astroparticle and Underground Physics (TAUP) conference 2015
    Torino, Italy, September 2015
  • Combined Analysis of the High-Energy Cosmic Neutrino Flux at the IceCube Detector
    Contributed talk at the International Cosmic Ray Conference (ICRC) 2015
    Den Haag, Netherlands, August 2015
    Presentation / Proceedings paper
  • Measuring Astrophysical Neutrinos at the South Pole with IceCube
    Invited seminar talk at the Erlangen Centre for Astroparticle Physics
    Erlangen, January 2015
  • High-Energy Neutrinos at IceCube: A Global Picture
    Invited talk at the Splinter meeting “The High Energy Universe” at the 2013 annual meeting of the German astronomical society
    Tübingen, September 2013
  • Measurement of the Diffuse Neutrino Flux by a Global Fit to Multiple IceCube Results
    Contributed talk at the Topics in Astroparticle and Underground Physics (TAUP) conference 2013
    Asilomar, CA, USA, September 2013

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