C. Hoischen
University of Potsdam
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Featured researches published by C. Hoischen.
arXiv: High Energy Astrophysical Phenomena | 2016
F. Schüssler; A. Balzer; Francois Brun; P. Brun; W. Domainko; M. Fuessling; C. Hoischen; G. Pühlhofer; A. Reimer; G. Rowell
Based on fundamental particle physics processes like the production and subsequent decay of pions in interactions of high-energy particles, close connections exist between the acceleration sites of high-energy cosmic rays and the emission of high-energy gamma rays and high-energy neutrinos. In most cases these connections provide both spatial and temporal correlations of the different emitted particles. The combination of the complementary information provided by these messengers allows to lift ambiguities in the interpretation of the data and enables novel and highly sensitive analyses. In this contribution the H.E.S.S. multi-messenger program is introduced and described. The current core of this newly installed program is the combination of high-energy neutrinos and high-energy gamma rays. The search for gamma-ray emission following gravitational wave triggers is also discussed. Furthermore, the existing program for following triggers in the electromagnetic regime was extended by the search for gamma-ray emission from Fast Radio Bursts (FRBs). An overview over current and planned analyses is given and recent results are presented.
Monthly Notices of the Royal Astronomical Society | 2018
S. Ohm; C. Hoischen
Stellar flares have been extensively studied in soft X-rays (SXR) by basically every X-ray mission. Hard X-ray (HXR) emission from stellar superflares, however, have only been detected from a handful of objects over the past years. One very extreme event was the superflare from the young M-dwarf DG CVn binary star system, which triggered Swift/BAT as if it was a
arXiv: High Energy Astrophysical Phenomena | 2017
Fabian Schüssler; Michael Backes; A. Balzer; Francois Brun; Matthias Füssling; C. Hoischen; Jean-Philippe Lenain; I. Lypova; S. Ohm; Daniel Parsons; G. Pühlhofer; A. Reimer; G. Rowell; M. Seglar-Arroyo; Andy Taylor
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arXiv: High Energy Astrophysical Phenomena | 2017
H. Abdalla; A. Abramowski; F. Aharonian; F. Ait Benkhali; A. G. Akhperjaniany; T. Andersson; E. O. Angüner; M. Arakawa; M. Arrieta; P. Aubert; M. Backes; A. Balzer; M. Barnard; Y. Becherini; J. Becker Tjus; D. Berge; S. Bernhard; K. Bernlöhr; R. Blackwell; M. Böttcher; C. Boisson; J. Bolmont; S. Bonnefoy; P. Bordas; J. Bregeon; Francois Brun; P. Brun; M. Bryan; M. Büchele; T. Bulik
-ray burst (GRB). In this work, we estimate the expected
arXiv: High Energy Astrophysical Phenomena | 2016
R. D. Parsons; A. Balzer; Matthias Fuessling; C. Hoischen; M. Holler; Alison Mitchell; G. Puehlhofer; G. Rowell; S. J. Wagner; E. Bissaldi; Paul T. O'Brien; Thomas P.H. Tam
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AIP Conference Proceedings | 2017
F. Schuessler; M. Backes; A. Balzer; F. Bruno; Matthias Fuessling; C. Hoischen; J-P Lenain; M. Lorentzl; I. Lypova; S. Ohms; R. D. Parsons; A. Reimers
-ray emission from DG CVn and the most extreme stellar flares by extrapolating from solar flares based on measured solar energetic particles (SEPs), as well as thermal and non-thermal emission properties. We find that ions are plausibly accelerated in stellar superflares to 100 GeV energies, and possibly up to TeV energies in the associated coronal mass ejections. The corresponding
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015) | 2016
C. Hoischen; S. Ohm; Heinrich Voelk
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