C
C. Song
Researcher at Columbia University
Publications - 32
Citations - 2993
C. Song is an academic researcher from Columbia University. The author has contributed to research in topics: Cosmic ray & Ultra-high-energy cosmic ray. The author has an hindex of 21, co-authored 32 publications receiving 2923 citations. Previous affiliations of C. Song include University of Adelaide.
Papers
More filters
Journal ArticleDOI
First observation of the Greisen-Zatsepin-Kuzmin suppression.
Rasha Abbasi,Tareq Abu-Zayyad,M. Allen,J. F. Amman,G. Archbold,Konstantin Belov,John Belz,S. Y. Ben Zvi,Douglas Bergman,S. A. Blake,O. A. Brusova,G. W. Burt,C. Cannon,Z. Cao,B. C. Connolly,W. Deng,Y. Fedorova,C. B. Finley,R. C. Gray,William Hanlon,C. M. Hoffman,Michael H. Holzscheiter,Gareth Hughes,P. Hüntemeyer,B. F. Jones,C. C. H. Jui,K. Kim,M. A. Kirn,E. C. Loh,M. M. Maestas,N. Manago,L. J. Marek,K. Martens,John Matthews,John N. Matthews,S. A. Moore,A. O’Neill,C. A. Painter,L. Perera,Kevin Reil,R. Riehle,M. D. Roberts,D. Rodriguez,Naruo Sasaki,Steve Schnetzer,L. M. Scott,G. Sinnis,J. D. Smith,Pierre Sokolsky,C. Song,R. W. Springer,B. T. Stokes,S. B. Thomas,J. R. Thomas,Gordon Thomson,Dale Tupa,S. Westerhoff,Lawrence Wiencke,Xiang Zhang,A. Zech +59 more
TL;DR: High Resolution Fly's Eye's measurement of the flux of ultrahigh energy cosmic rays shows a sharp suppression at an energy of 6 x 10(19) eV, consistent with the expected cutoff energy.
Journal ArticleDOI
Indications of proton-dominated cosmic-ray composition above 1.6 EeV.
Rasha Abbasi,Tareq Abu-Zayyad,M. Al-Seady,M. Allen,J. F. Amman,Ross Anderson,G. Archbold,Konstantin Belov,John Belz,Douglas Bergman,S. A. Blake,O. A. Brusova,G. W. Burt,C. Cannon,Z. Cao,W. Deng,Y. Fedorova,C. B. Finley,R. C. Gray,William Hanlon,C. M. Hoffman,Michael H. Holzscheiter,Gareth Hughes,P. Hüntemeyer,B. F. Jones,C. C. H. Jui,K. Kim,M. A. Kirn,E. C. Loh,J. Liu,J. P. Lundquist,M. M. Maestas,N. Manago,L. J. Marek,K. Martens,J. A.J. Matthews,John N. Matthews,S. A. Moore,A. O’Neill,C. A. Painter,L. Perera,Kevin Reil,R. Riehle,M. D. Roberts,D. Rodriguez,Naruo Sasaki,Steve Schnetzer,L. M. Scott,G. Sinnis,J. D. Smith,Pierre Sokolsky,C. Song,R. W. Springer,B. T. Stokes,S. R. Stratton,S. B. Thomas,J. R. Thomas,Gordon Thomson,Dale Tupa,A. Zech,Xiang Zhang +60 more
TL;DR: These measurements constrain models in which the galactic-to-extragalactic transition is the cause of the energy spectrum ankle at 4x10(18) eV, and are consistent with a predominantly protonic composition of cosmic rays when interpreted via the Q GSJET01 and QGSJET-II high-energy hadronic interaction models.
Journal ArticleDOI
Measurement of the flux of ultrahigh energy cosmic rays from monocular observations by the High Resolution Fly's Eye experiment.
Rasha Abbasi,Tareq Abu-Zayyad,James F. Amann,G. Archbold,Jose A. Bellido,Konstantin Belov,John Belz,Douglas Bergman,Z. Cao,Roger W Clay,M.D. Cooper,H. Y. Dai,Bruce R. Dawson,A.A. Everett,Yu. A. Fedorova,Julien Girard,R. C. Gray,William Hanlon,C. M. Hoffman,Michael H. Holzscheiter,P. Hüntemeyer,B. F. Jones,C. C. H. Jui,David Kieda,K. Kim,M. A. Kirn,E. C. Loh,N. Manago,L. J. Marek,K. Martens,G. Martin,J. A.J. Matthews,John N. Matthews,J. R. Meyer,S. A. Moore,P. Morrison,A. N. Moosman,J.R. Mumford,M. W. Munro,C. A. Painter,L. Perera,Kevin Reil,R. Riehle,M. D. Roberts,J. S. Sarracino,Misao Sasaki,Steve Schnetzer,P. Shen,K. M. Simpson,G. Sinnis,J. D. Smith,Pierre Sokolsky,C. Song,R. W. Springer,B. T. Stokes,S. Taylor,S. B. Thomas,T.N. Thompson,Gordon Thomson,Dale Tupa,S. Westerhoff,Lawrence Wiencke,T. Vanderveen,A. Zech,Xiang Zhang +64 more
TL;DR: The cosmic ray spectrum is measured using the two air-fluorescence detectors of the High Resolution Fly's Eye observatory operating in monocular mode to fit the spectrum to a model consisting of galactic and extragalactic sources.
Journal ArticleDOI
Evidence for changing of cosmic ray composition between 10(17) and 10(18) eV from multicomponent measurements
Tareq Abu-Zayyad,Konstantin Belov,D. J. Bird,J. H. Boyer,Z. Cao,M. Catanese,G. F. Chen,Roger W Clay,Corbin Covault,J. W. Cronin,H. Y. Dai,Bruce R. Dawson,J. W. Elbert,Brian Fick,Lucy Fortson,Lucy Fortson,Joseph W. Fowler,K. Gibbs,M. A. K. Glasmacher,K. D. Green,Y. Ho,A. Huang,C. C. H. Jui,M. J. Kidd,David Kieda,B. C. Knapp,S. Ko,C. G. Larsen,Weonjong Lee,E. C. Loh,E. J. Mannel,John Matthews,John Matthews,John N. Matthews,B. J. Newport,D. Nitz,R. A. Ong,K. M. Simpson,J. D. Smith,D. Sinclair,Pierre Sokolsky,Paul Sommers,C. Song,J. K. K. Tang,S. B. Thomas,J. C. van der Velde,Lawrence Wiencke,C. R. Wilkinson,S. Yoshida,X. Z. Zhang +49 more
TL;DR: The results show that the composition is changing from a heavy to lighter mix as the energy increases, and the composition of cosmic rays with primary energies between 10(17) and 10(18) eV has been studied.
Journal ArticleDOI
A Study of the Composition of Ultra-High-Energy Cosmic Rays Using the High-Resolution Fly’s Eye
Rasha Abbasi,Tareq Abu-Zayyad,G. Archbold,G. Archbold,R. W. Atkins,Jose A. Bellido,Konstantin Belov,John Belz,Segev BenZvi,Douglas Bergman,J. H. Boyer,G. W. Burt,Z. Cao,Roger W Clay,B.M. Connolly,Bruce R. Dawson,W. Deng,Y. Fedorova,J. Findlay,C. B. Finley,William Hanlon,Gareth Hughes,P. Hüntemeyer,C. C. H. Jui,K. Kim,M. A. Kirn,B. C. Knapp,E. C. Loh,M. M. Maetas,K. Martens,G. Martin,N. Manago,E. J. Mannel,J. A.J. Matthews,John N. Matthews,A. O’Neill,L. Perera,Kevin Reil,R. Riehle,M. D. Roberts,M. Sasaki,M. Seman,Steve Schnetzer,K. M. Simpson,J. D. Smith,R. Snow,Pierre Sokolsky,C. Song,R. W. Springer,B. T. Stokes,J. R. Thomas,S. B. Thomas,Gordon Thomson,S. Westerhoff,Lawrence Wiencke,A. Zech +55 more
TL;DR: In this article, the authors measured the composition of ultra-high-energy cosmic rays with the High Resolution Fly's Eye cosmic-ray observatory data using the Xmax technique and found the detector resolution was 30 g cm-2 in Xmax and 13% in energy.