V. Matheis
Max Planck Society
4 Papers
31 Citations
V. Matheis is an academic researcher from Max Planck Society. The author has contributed to research in topics: HEGRA & Cosmic ray. The author has an hindex of 4, co-authored 4 publications. Previous affiliations of V. Matheis include Paul Scherrer Institute.
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Papers
A search for gamma radiation above 24 TeV energy from cosmic point sources
A. Karle,F. Arqueros,K. H. Becker,E. Faleiro,José Fernández,P. Fernandez,V. Fonseca,V. Haustein,G. Heinzelmann,V. Henke,I. Holl,F. Just,H. Krawwcczynski,F. Krennrich,M. Kühn,A. Lindner,E. Lorenz,S. Martinez,V. Matheis,M. Merck,H. Meyer,R. Mirzoyan,N. Müller,R. Plaga,J. Prahl,Dieter Renker,M. Rozanska,M. Samorski,H. Sander,K. Sauerland,D. Schmele,R. N. Sooth,W. Stamm,B. Wiebel +33 more
TL;DR: In this article, the HEGRA collaboration has searched for γ-ray emission from 36 potential cosmic point sources with the wide angle air Cerenkov detector AIROBICC which is part of the HegRA cosmic ray detector complex on La Palma.
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Design and performance of the angle integrating Čerenkov array AIROBICC
A. Karle,M. Merck,R. Plaga,F. Arqueros,V. Haustein,G. Heinzelmann,I. Holl,V. Fonseca,E. Lorenz,S. Martinez,V. Matheis,H. Meyer,R. Mirzoyan,J. Prahal,Dieter Renker,M. Rozanska,M. Samorski +16 more
TL;DR: An air-shower array consisting of 49 open huts with photomultiplier tubes viewing the night sky over a solid angle of about 1 steradian is described in this article.
Changes of the cosmic-ray mass composition in the 1014–1016 eV energy range
TL;DR: In this article, the angular distribution of particles in air showers is analyzed to investigate changes of the cosmic-ray mass composition at the "knee" of the spectrum near 10 15 eV energy.
Search for isotropic γ radiation in the cosmological window between 65 and 200 TeV
A. Karle,A. Karle,S. Martinez,S. Martinez,R. Plaga,R. Plaga,F. Arqueros,F. Arqueros,K. H. Becker,S.M. Bradbury,S.M. Bradbury,José Fernández,José Fernández,P. Fernandez,P. Fernandez,V. Fonseca,V. Fonseca,B. Funk,V. Haustein,V. Haustein,G. Heinzelmann,G. Heinzelmann,V. Henke,V. Henke,Henric Krawczynski,Henric Krawczynski,F. Krennrich,F. Krennrich,M. Kühn,M. Kühn,Axel Lindner,Axel Lindner,E. Lorenz,E. Lorenz,N. Magnussen,V. Matheis,V. Matheis,M. Merck,H. J. Meyer,R. Mirzoyan,N. Müller,D. Petry,J. Prahl,C. Prosch,Dieter Renker,Wolfgang Rhode,M. Rozanska,M. Samorski,H. Sander,D. Schmele,R. N. Sooth,W. Stamm,S. Westerhoff,B. Wiebel-Sooth,M. Willmer +54 more
TL;DR: In this article, the authors presented an upper limit (90% CL) on the ratio of primary γ to charged cosmic rays in the energy interval 65-160 TeV (80-200 TeV) of the HEGRA cosmic-ray detector complex.