Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - Experimentelle Elementarteilchenphysik

High Energy Stereoscopic System (H.E.S.S.)

 H.E.S.S. telescopes

 

H.E.S.S. is an array of five Imaging Atmospheric Cherenkov Telescopes located in the southern hemisphere in the Khomas Highland of Namibia. It is operated by a collaboration of over 100 scientists and allows the detection of gamma-rays with energies between 50 GeV and 100 TeV. In its Phase I (since 2004) the system has been fully operational with four identical 12m-diameter telescopes whose high sensitivity allowed the discovery of numerous galactic and extragalactic sources. In the summer of 2012, an additional fifth telescope with a mirror diameter of 28m was added (H.E.S.S. Phase II). This large telescope is located in the centre of the existing array and is the largest Cherenkov telescope ever built. Its almost 600 m2 area mirror surface allows the telescope to detect gamma-ray induced air shower of lower energy and enhances the sensitivity of the H.E.S.S. array.


The HU Berlin H.E.S.S. group focuses chiefly on scientific data analysis activities, such as the analysis supernovae as possible sources of cosmic rays, binary systems and pulsar wind nebulae. 

Research Topics

 

  • Pulsar Wind Nebulae

    Pulsar wind nebulae (PWNe) are luminous structures visible around pulsars. They are powered by the spin-down energy loss of the pulsar and have been detected at various energies (e.g. X-ray, high-energy). PWNe form the largest known population of Galactic gamma-ray sources and it is assumed that many currently unidentified sources will be classified as PWNe. Observations with H.E.S.S. in combination with multiwavelength data help to understand the evolution and structure of PWN.

  • Supernova Remnants

    Supernova remnants (SNR) result from the explosions of stars in supernovae. Apart from heating up the interstellar medium they accelerate cosmic rays which is of particular interest since the acceleration mechanisms of extremly high energetic particles are still poorly known.

Group members

Staff scientists

  • Daniel Parsons
  • Postdoctoral research fellows

    Andres Delgado

  • PhD students

    • Abhay Mehta 

      Anita Deka Baruah

      Jowita Borowska-Naguszewska

Theses

List of theses written within the H.E.S.S group

Publications

List of publications of the H.E.S.S. group