H
H. Ulrich
Researcher at Karlsruhe Institute of Technology
Publications - 191
Citations - 4310
H. Ulrich is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: KASCADE & Cosmic ray. The author has an hindex of 29, co-authored 191 publications receiving 4071 citations.
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Journal ArticleDOI
KASCADE measurements of energy spectra for elemental groups of cosmic rays: Results and open problems
T. Antoni,W. D. Apel,A.F. Badea,K. Bekk,Alexandru Bercuci,J. Blümer,H. Bozdog,I.M. Brancus,Ashot Chilingarian,Kai Daumiller,P. Doll,R. Engel,J. Engler,F. Feßler,H.J. Gils,R. Glasstetter,Andreas Haungs,D. Heck,Jörg R. Hörandel,Karl-Heinz Kampert,H.O. Klages,Gernot Maier,H. J. Mathes,H.J. Mayer,J. Milke,Marcio Aparecido Muller,R. Obenland,J. Oehlschläger,S. Ostapchenko,M. Petcu,H. Rebel,A. Risse,M. Risse,Markus Roth,G. Schatz,H. Schieler,J. Scholz,T. Thouw,H. Ulrich,J. van Buren,A. Vardanyan,A. Weindl,J. Wochele,J. Zabierowski +43 more
TL;DR: In this paper, a composition analysis of KASCADE air shower data is performed by means of unfolding the two-dimensional frequency spectrum of electron and muon numbers, and the analysis is the determination of energy spectra for elemental groups representing the chemical composition of primary cosmic rays.
Journal ArticleDOI
Detection and imaging of atmospheric radio flashes from cosmic ray air showers
Heino Falcke,Heino Falcke,Heino Falcke,W. D. Apel,A.F. Badea,L. Bähren,K. Bekk,Alexandru Bercuci,M. E. Bertaina,Peter L. Biermann,J. Blümer,H. Bozdog,I.M. Brancus,Stijn Buitink,M. Brüggemann,Peter Buchholz,Harvey Butcher,A. Chiavassa,Kai Daumiller,A. G. de Bruyn,C. M. de Vos,F. Di Pierro,P. Doll,Ralph Engel,H. Gemmeke,Piera Luisa Ghia,R. Glasstetter,Claus Grupen,A. Haungs,Dieter Heck,J.R. Hörandel,A. Horneffer,Tim Huege,Karl-Heinz Kampert,G. W. Kant,U. Klein,Y. Kolotaev,Y. Koopman,O. Krömer,Jan Kuijpers,S.J. Lafebre,Gernot Maier,Hermann-Josef Mathes,H.J. Mayer,J. Milke,B. Mitrica,C. Morello,G. Navarra,S. Nehls,A. Nigl,R. Obenland,J. Oehlschläger,S. Ostapchenko,S. Over,H. J. Pepping,M. Petcu,J. Petrovic,S. Plewnia,H. Rebel,A. Risse,Markus Roth,H. Schieler,G. Schoonderbeek,Octavian Sima,M. Stümpert,G. Toma,G. C. Trinchero,H. Ulrich,S. Valchierotti,J. van Buren,W. A. van Cappellen,Wolfgang Walkowiak,A. Weindl,Stefan J. Wijnholds,J. Wochele,J. Zabierowski,J. A. Zensus,D. Zimmermann +77 more
TL;DR: The results show that it should be possible to determine the nature and composition of UHECRs with combined radio and particle detectors, and to detect the ultrahigh-energy neutrinos expected from flavour mixing.
Journal ArticleDOI
The cosmic-ray experiment KASCADE
T. Antoni,W. D. Apel,F. Badea,K. Bekk,A. Bercuci,H. Blümer,H. Bozdog,I.M. Brancus,C. Büttner,Ashot Chilingarian,Kai Daumiller,P. Doll,J. Engler,F. Feßler,H.J. Gils,R. Glasstetter,R. Haeusler,Andreas Haungs,Dieter Heck,Jörg R. Hörandel,A. Iwan,Karl-Heinz Kampert,H.O. Klages,Gernot Maier,Hermann-Josef Mathes,H.J. Mayer,J. Milke,Marcio Aparecido Muller,R. Obenland,J. Oehlschläger,S. Ostapchenko,M. Petcu,H. Rebel,M. Risse,Markus Roth,G. Schatz,Harald Schieler,J. Scholz,T. Thouw,H. Ulrich,A. Vardanyan,J.H. Weber,A. Weindl,J. Wentz,J. Wochele,J. Zabierowski,S. Zagromski +46 more
TL;DR: The KASCADE experiment as mentioned in this paper was designed to measure air showers of primary cosmic-ray energies in the PeV region and to investigate the knee phenomenon in the all-particle energy spectrum.
Journal ArticleDOI
Kneelike Structure in the Spectrum of the Heavy Component of Cosmic Rays Observed with KASCADE-Grande
W. D. Apel,J. C. Arteaga-Velázquez,K. Bekk,M. E. Bertaina,J. Blümer,H. Bozdog,I.M. Brancus,Peter Buchholz,E. Cantoni,A. Chiavassa,F. Cossavella,Kai Daumiller,de Souza,Di Pierro F,P. Doll,Ralph Engel,J. Engler,M. Finger,D. Fuhrmann,Piera Luisa Ghia,H.J. Gils,R. Glasstetter,Claus Grupen,Andreas Haungs,Dieter Heck,Hörandel,D. Huber,Tim Huege,Paula Gina Isar,Karl-Heinz Kampert,D. Kang,H.O. Klages,K. Link,P. Łuczak,M. Ludwig,Hermann-Josef Mathes,H.J. Mayer,M. Melissas,J. Milke,B. Mitrica,C. Morello,G. Navarra,J. Oehlschläger,S. Ostapchenko,S. Over,N. Palmieri,M. Petcu,T. Pierog,H. Rebel,Markus Roth,H. Schieler,Frank G. Schröder,Octavian Sima,G. Toma,G. C. Trinchero,H. Ulrich,A. Weindl,J. Wochele,M. Wommer,J. Zabierowski +59 more
TL;DR: The observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about 8×10(16) eV is reported, which is caused by heavy primaries.
Journal ArticleDOI
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
W. D. Apel,J.C. Arteaga-Velázquez,K. Bekk,M. E. Bertaina,J. Blümer,H. Bozdog,I.M. Brancus,E. Cantoni,E. Cantoni,A. Chiavassa,F. Cossavella,Kai Daumiller,V. de Souza,F. Di Pierro,P. Doll,Ralph Engel,J. Engler,M. Finger,Béatrice Fuchs,D. Fuhrmann,H.J. Gils,R. Glasstetter,Claus Grupen,Andreas Haungs,D. Heck,Jörg R. Hörandel,D. Huber,T. Huege,Karl-Heinz Kampert,D. Kang,H.O. Klages,K. Link,P. Łuczak,M. Ludwig,H. J. Mathes,H.J. Mayer,M. Melissas,J. Milke,B. Mitrica,C. Morello,J. Oehlschläger,S. Ostapchenko,N. Palmieri,M. Petcu,T. Pierog,H. Rebel,Markus Roth,H. Schieler,S. Schoo,F.G. Schröder,Octavian Sima,G. Toma,G.C. Trinchero,H. Ulrich,A. Weindl,J. Wochele,M. Wommer,J. Zabierowski +57 more
TL;DR: In this article, the KASCADE-Grande air-shower data was used to reconstruct the energy spectra of different mass groups by unfolding methods over an energy range where the detector is fully efficient.