T. Nagai
Iowa State University
17 Papers
89 Citations
T. Nagai is an academic researcher from Iowa State University. The author has contributed to research in topics: Crab Nebula & Blazar. The author has an hindex of 14, co-authored 17 publications.
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Papers
A connection between star formation activity and cosmic rays in the starburst galaxy M82
V. A. Acciari,V. A. Acciari,V. A. Acciari,E. Aliu,T. C. Arlen,T. Aune,Manuel A. Bautista,M. Beilicke,Wystan Benbow,D. Boltuch,S. M. Bradbury,J. H. Buckley,V. Bugaev,Karen Byrum,A. Cannon,O. Celik,A. Cesarini,Y. C. Chow,L. Ciupik,P. Cogan,Pierre Colin,Wei Cui,R. Dickherber,C. Duke,S. J. Fegan,J. P. Finley,G. Finnegan,P. Fortin,Lucy Fortson,Amy Furniss,N. Galante,Daniel Gall,K. G. Gibbs,G. H. Gillanders,S. Godambe,J. Grube,R. Guenette,Geza Gyuk,D. S. Hanna,Jamie Holder,D. Horan,C. M. Hui,Thomas Brian Humensky,A. Imran,Philip Kaaret,N. Karlsson,M. Kertzman,David Kieda,John Kildea,A. Konopelko,Henric Krawczynski,Frank Krennrich,M. J. Lang,S. LeBohec,Gernot Maier,S. McArthur,A. McCann,M. McCutcheon,J. Millis,P. Moriarty,Reshmi Mukherjee,T. Nagai,R. A. Ong,A. N. Otte,D. Pandel,J. S. Perkins,F. Pizlo,Martin Pohl,John L. Quinn,K. Ragan,L. C. Reyes,P. T. Reynolds,E. Roache,H. J. Rose,M. Schroedter,G. H. Sembroski,A. W. Smith,D. Steele,S. P. Swordy,M. Theiling,S. Thibadeau,A. Varlotta,Vladimir Vassiliev,S. Vincent,R. G. Wagner,S. P. Wakely,J. E. Ward,T. C. Weekes,Amanda Weinstein,T. Weisgarber,David A. Williams,Stephanie Wissel,Matthew Wood,B. Zitzer +93 more
TL;DR: A cosmic-ray density of 250 eV cm-3 in the starburst core, which is about 500 times the average Galactic density is determined, and suggests that supernovae and massive-star winds are the dominant accelerators.
343
VERITAS Discovery of >200 GeV Gamma-Ray Emission from the Intermediate-Frequency-Peaked BL Lacertae Object W Comae
V. A. Acciari,V. A. Acciari,E. Aliu,M. Beilicke,Wystan Benbow,Markus Böttcher,S. M. Bradbury,J. H. Buckley,V. Bugaev,Y. Butt,O. Celik,A. Cesarini,A. Cesarini,L. Ciupik,Y. C. Chow,P. Cogan,Pierre Colin,Wei Cui,M. K. Daniel,M. K. Daniel,Tulun Ergin,A. D. Falcone,S. J. Fegan,J. P. Finley,G. Finnegan,P. Fortin,Lucy Fortson,Amy Furniss,Daniel Gall,G. H. Gillanders,J. Grube,R. Guenette,Geza Gyuk,D. S. Hanna,E. Hays,E. Hays,Jamie Holder,D. Horan,C. M. Hui,Thomas Brian Humensky,A. Imran,P. Kaaret,N. Karlsson,M. Kertzman,David Kieda,A. Konopelko,A. Konopelko,Henric Krawczynski,F. Krennrich,M. J. Lang,S. LeBohec,K. Lee,Gernot Maier,A. McCann,M. McCutcheon,P. Moriarty,Reshmi Mukherjee,T. Nagai,Jacek Niemiec,R. A. Ong,D. Pandel,J. S. Perkins,D. Petry,Martin Pohl,John L. Quinn,K. Ragan,Luis C. Reyes,P. T. Reynolds,E. Roache,H. J. Rose,M. Schroedter,G. H. Sembroski,A. W. Smith,A. W. Smith,D. Steele,S. P. Swordy,John Toner,John Toner,Vladimir Vassiliev,Rick Wagner,S. P. Wakely,J. E. Ward,T. C. Weekes,Amanda Weinstein,R. J. White,David A. Williams,Stephanie Wissel,Matthew Wood,B. Zitzer +88 more
TL;DR: In this article, the authors reported the detection of very high-energy -ray emission from the intermediate-frequency-peaked BLLacertae object WComae (z = 0.102) by VERITAS, an array of four imaging atmospheric-Cherenkov telescopes.
123
DISCOVERY OF VARIABILITY IN THE VERY HIGH ENERGY γ -RAY EMISSION OF 1ES 1218+304 WITH VERITAS
V. A. Acciari,E. Aliu,M. Beilicke,Wystan Benbow,D. Boltuch,Markus Böttcher,S. M. Bradbury,V. Bugaev,Karen Byrum,A. Cesarini,L. Ciupik,P. Cogan,Wei Cui,R. Dickherber,C. Duke,A. D. Falcone,J. P. Finley,G. Finnegan,Lucy Fortson,Amy Furniss,N. Galante,Daniel Gall,K. G. Gibbs,R. Guenette,G. H. Gillanders,S. Godambe,J. Grube,D. S. Hanna,C. M. Hui,Thomas Brian Humensky,A. Imran,P. Kaaret,N. Karlsson,M. Kertzman,David Kieda,Henric Krawczynski,F. Krennrich,M. J. Lang,S. LeBohec,Gernot Maier,S. McArthur,A. McCann,P. Moriarty,T. Nagai,R. A. Ong,A. N. Otte,D. Pandel,J. S. Perkins,A. Pichel,Martin Pohl,John L. Quinn,K. Ragan,Luis C. Reyes,P. T. Reynolds,E. Roache,H. J. Rose,M. Schroedter,G. H. Sembroski,A. W. Smith,D. Steele,S. P. Swordy,M. Theiling,S. Thibadeau,Vladimir Vassiliev,S. Vincent,S. P. Wakely,T. C. Weekes,Amanda Weinstein,T. Weisgarber,David A. Williams +69 more
TL;DR: In this article, the authors present results from an intensive VERITAS monitoring campaign of the high-frequency peaked BL Lac object 1ES 1218+304 in 2008/2009, which revealed a prominent flare reaching ~20% of the Crab Nebula flux.
Multiwavelength observations of markarian 421 in 2005-2006
D. Horan,V. A. Acciari,V. A. Acciari,S. M. Bradbury,J. H. Buckley,V. Bugaev,Karen Byrum,A. Cannon,O. Celik,A. Cesarini,Y. C. Chow,L. Ciupik,P. Cogan,A. D. Falcone,S. J. Fegan,J. P. Finley,P. Fortin,Lucy Fortson,Daniel Gall,G. H. Gillanders,J. Grube,Geza Gyuk,D. S. Hanna,E. Hays,E. Hays,E. Hays,M. Kertzman,John Kildea,A. Konopelko,Henric Krawczynski,F. Krennrich,M. J. Lang,K. Lee,P. Moriarty,T. Nagai,Jacek Niemiec,R. A. Ong,J. S. Perkins,Martin Pohl,John L. Quinn,P. T. Reynolds,H. J. Rose,G. H. Sembroski,A. W. Smith,D. Steele,S. P. Swordy,John Toner,Vladimir Vassiliev,S. P. Wakely,T. C. Weekes,R. J. White,David A. Williams,M. Wood,B. Zitzer,Hugh D. Aller,Margo F. Aller,M. Baker,D. Barnaby,Michael T. Carini,P. Charlot,P. Charlot,J. P. Dumm,N. E. Fields,Talvikki Hovatta,B. Jordan,Yuri Kovalev,Yuri Y. Kovalev,Yuri Y. Kovalev,Hans A. Krimm,Hans A. Krimm,Omar M. Kurtanidze,Anne Lähteenmäki,J. F. Le Campion,J. F. Le Campion,J. Maune,Teresa Montaruli,A. C. Sadun,S. Smith,Merja Tornikoski,M. Turunen,R. Walters +80 more
TL;DR: In this paper, the authors report on the observations of the Markarian 421 (Mrk 421) from 2005 November to 2006 June in the gamma-ray and X-ray, optical, and radio bands.
A SEARCH FOR DARK MATTER ANNIHILATION WITH THE WHIPPLE 10 m TELESCOPE
Matthew Wood,G. Blaylock,S. M. Bradbury,J. H. Buckley,Karen Byrum,Y. C. Chow,Wei Cui,I. de la Calle Perez,A. D. Falcone,S. J. Fegan,J. P. Finley,J. Grube,J. Hall,D. S. Hanna,Jamie Holder,D. Horan,Thomas Brian Humensky,David Kieda,John Kildea,A. Konopelko,Henric Krawczynski,F. Krennrich,M. J. Lang,S. LeBohec,T. Nagai,R. A. Ong,J. S. Perkins,Martin Pohl,John L. Quinn,H. J. Rose,G. H. Sembroski,Vladimir Vassiliev,R. G. Wagner,S. P. Wakely,T. C. Weekes,Amanda Weinstein +35 more
TL;DR: In this paper, the authors present observations of the dwarf galaxies Draco and Ursa Minor, the Local Group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10 m gamma-ray telescope to search for the gamma ray signature of self-annihilating weakly interacting massive particles (WIMPs), which may constitute astrophysical dark matter (DM).