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Astronomy - News

04/11/2018

Newly discovered supernova remnants only reveal themselves at the highest gamma-ray energies

Astrophysicists of the University of Tübingen publish new results on the occasion of the 15th anniversary of the Gamma Telescope System in Namibia that is operated by the H.E.S.S. collaboration.

The H.E.S.S. telescopes have surveyed the Milky Way for the past 15 years searching for sources of gamma radiation in the TeV energy range, i.e. in the range of 1012 electron volts. The H.E.S.S. collaboration includes scientists of the Institute of Astronomy and Astrophysics of the University of Tübingen. For the first time they have been able to classify celestial objects using only the emission of this kind of radiation: very likely they are supernova remnants, which are celestial objects that emerge after the explosion of massive stars. The results are published in a special edition of the scientific journal Astronomy & Astrophysics, which appears on the occasion of the 15th anniversary of the H.E.S.S. telescopes with the largest set of science results of the project to date.

See also new article in Sky & Telescope:

Gamma-ray Supernova Remnants Shed Light on Cosmic Rays

Press release of the University of Tübingen:

https://www.uni-tuebingen.de/en/newsfullview-landingpage/article/neu-entdeckte-supernova-ueberreste-verraten-sich-nur-durch-sehr-hochenergetische-gammastrahlung.html

Original publication:

A search for new supernova remnant shells in the Galactic plane with H.E.S.S.

Corresponding authors: G. Pühlhofer, D. Gottschall, M. Capasso.

H. Abdallah et al. (H.E.S.S. collaboration), Astronomy & Astrophysics, Vol. 612, https://doi.org/10.1051/0004-6361/201730737

A&A special issue:

https://www.aanda.org/component/toc/?task=topic&id=915

Press release of the H.E.S.S. collaboration about the special issue:

https://www.mpi-hd.mpg.de/hfm/HESS/pages/press/2018/AA-Special-Issue/

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