Zobrazeno 1 - 10
of 29
pro vyhledávání: '"R. W. Atkins"'
Autor:
G. E. Kenny, O. Celik, M. J. Lang, P. Moriarty, D. Petry, G. H. Gillanders, A. Konopelko, J. P. Finley, John Kildea, D. A. Carter-Lewis, F. Krennrich, T. C. Weekes, A. Syson, J. Millis, Y. C. K. Chow, J. Lloyd-Evans, I. D. Perez, I. Jung, M. K. Daniel, C. Duke, D. J. Fegan, H. J. Rose, R. J. White, S. P. Wakely, Daniel Gall, S. B. Hughes, J. S. Perkins, M. Jordan, A. W. Smith, J. Grube, Jamie Holder, J. H. Buckley, M. Schroedter, C. Dowdall, K. Gutierrez, John Toner, P. Cogan, S. M. Bradbury, G. H. Sembroski, R. W. Atkins, J. Knapp, P. A. Ogden, I. H. Bond, Henric Krawczynski, Lucy Fortson, R. A. Ong, D. Horan, S. LeBohec, J. Hall, T. Nagai, P. Rebillot, Martin Pohl, K. Kosack, Mark N. Quinn, Wei Cui, L. Valcarcel, M. Kertzman, G. Blaylock, H. M. Badran, V. V. Vassiliev, Tony Hall, Abraham D. Falcone, F. Pizlo, S. J. Fegan, John L. Quinn
Publikováno v:
Astroparticle Physics. 28:182-195
Details are presented of the Whipple Observatory’s 10 m atmospheric Cherenkov telescope and camera, as it evolved during the period 1997 until 2006. The design of the telescope and camera’s optical and electronic systems is discussed together wit
Autor:
M. Schroedter, P. Cogan, J. Grube, R. W. Atkins, Vladimir Vassiliev, Y. C. K. Chow, M. K. Daniel, Karen Byrum, Gernot Maier, P. Fortin, A. D. Falcone, David Kieda, S. P. Wakely, John Kildea, H. Krawczynski, I. de la Calle Perez, Stephan LeBohec, S. P. Swordy, Jeremy Perkins, H. J. Rose, R. A. Ong, J. H. Buckley, R. J. White, K. Ragan, S. J. Fegan, D. Steele, P. T. Reynolds, M. Kertzman, M. J. Lang, Lucy Fortson, S. B. Hughes, R. G. Wagner, G. H. Sembroski, Thomas Brian Humensky, J. Hall, Jamie Holder, S. M. Bradbury, D. J. Fegan, P. Moriarty, John L. Quinn, G. Blaylock, J. P. Finley, T. C. Weekes, K. J. Gutierrez, D. Horan, T. N. Nagai, D. Petry, G. H. Gillanders, Frank Krennrich, C. Dowdall, O. Celik, D. S. Hanna, D. A. Williams, G. E. Kenny, H. M. Badran, John Toner, Wei Cui, L. Valcarcel, Mark N. Quinn
Publikováno v:
Department of Physics and Astronomy Faculty Publications
Gamma-ray burst (GRB) observations at very high energies (VHE, E > 100 GeV) can impose tight constraints on some GRB emission models. Many GRB afterglow models predict a VHE component similar to that seen in blazars and plerions, in which the GRB spe
Autor:
S. P. Swordy, R. A. Ong, J. H. Buckley, M Schroedter, H. Manseri, Gernot Maier, F. Pizlo, S. LeBohec, D Horana, J. Lloyd-Evans, S. P. Wakely, G. Walker, Mark N. Quinn, G. Blaylock, J. Knapp, J. Hall, I. H. Bond, K. Ragan, H. M. Badran, F. Krennrich, R. W. Atkins, Vladimir Vassiliev, David Kieda, M. J. Lang, Martin Pohl, K. Kosack, P T Reynolds, Sm Bradbury, John L. Quinn, R. G. Wagner, D. Petry, K. G. Gibbs, Jeremy Perkins, S. Gammell, P Rebillot, E. Hays, P. A. Ogden, A. Syson, Reshmi Mukherjee, G. H. Gillanders, Jamie Holder, C Duke, Da Carter-Lewis, P. Fortin, H. J. Rose, D. J. Fegan, Y. C. Chow, G H Sembroski, Lucy Fortson, B. Power-Mooney, P. Moriarty, T Ergin, Dowdall, J. Grube, T. N. Nagai, A. D. Falcone, M K Daniel, M. A. Olevitch, David A. Williams, John Kildea, J. P. Finley, Henric Krawczynski, T. C. Weekes, R. J. White, S. B. Hughes, M. Kertzmann, Thomas Brian Humensky, P. Cogan, P. J. Boyle, S. J. Fegan, D. Steele, Paul Dowkontt, D. S. Hanna, W CuP, Jeffrey Zweerink, O. Celik, A. Milovanovic, G. E. Kenny, I. de la Calle Perez, P. Kaaret, E. Linton, L. Valcarcel
Publikováno v:
Journal of Physics: Conference Series. 47:232-237
The Very Energetic Radiation Imaging Telescope Array System (VERITAS) being constructed in Southern Arizona consists of an array of four Atmospheric Cherenkov 12m Telescopes designed to observe astrophysical gamma rays in the energy range from 100 Ge
Autor:
A. O’Neill, M. Seman, B.M. Connolly, Kevin Reil, Konstantin Belov, John N. Matthews, C. Cannon, P. Hüntemeyer, E. J. Mannel, R. W. Springer, G. Archbold, C. B. Finley, S. Westerhoff, M. D. Roberts, B. T. Stokes, C. M. Hoffman, G. Sinnis, John Matthews, Dale Tupa, J. H. Boyer, Y. Fedorova, E. C. Loh, K. Martens, A. Zech, Steve Schnetzer, Gordon Thomson, C. Song, B. C. Knapp, C. C. H. Jui, Michael H. Holzscheiter, James F. Amann, Gareth Hughes, Tareq Abu-Zayyad, Pierre Sokolsky, Segev BenZvi, S. B. Thomas, Lawrence Wiencke, Z. Cao, M. A. Kirn, John Belz, J. D. Smith, Douglas Bergman, William Hanlon, Rasha Abbasi, N. Manago, R. W. Atkins
Publikováno v:
Astroparticle Physics. 25:93-97
Air fluorescence measurements of cosmic ray energy must be corrected for attenuation of the atmosphere. In this paper we show that the air-showers themselves can yield a measurement of the aerosol attenuation in terms of optical depth, time-averaged
Autor:
S. Y. Ben Zvi, Gordon Thomson, J. A.J. Matthews, J. Findlay, John Belz, Steve Schnetzer, B. C. Connolly, L. J. Marek, Michael H. Holzscheiter, C. Song, J. R. Thomas, John N. Matthews, P. Hüntemeyer, M. A. Kirn, C. B. Finley, Lawrence Wiencke, K. M. Simpson, Kevin Reil, William Hanlon, Rasha Abbasi, R. Riehle, B. T. Stokes, W. Deng, N. Manago, Bruce R. Dawson, M. Sasaki, M. D. Roberts, C. M. Hoffman, G. Sinnis, Jose A. Bellido, G. Archbold, Douglas Bergman, C. A. Painter, Z. Cao, A. O’Neill, Konstantin Belov, R. W. Atkins, E.G. Loh, Dale Tupa, R. W. Springer, C. C. H. Jui, G. W. Burt, S. B. Thomas, J. D. Smith, J. F. Amman, R. Snow, L. Perera, S. Westerhoff, K. Kim, Pierre Sokolsky, K. Martens, A. Zech, Gareth Hughes, Tareq Abu-Zayyad, Y. Fedorova, Roger W Clay, M. M. Maestas
Publikováno v:
Physics Letters B. 619:271-280
We have measured the cosmic ray spectrum at energies above $10^{17}$ eV using the two air fluorescence detectors of the High Resolution Fly's Eye experiment operating in monocular mode. We describe the detector, PMT and atmospheric calibrations, and
Autor:
M. Seman, R. Riehle, M. D. Roberts, A. O’Neill, J. A.J. Matthews, B.M. Connolly, J. Findlay, C. Song, B. C. Knapp, John Belz, Y. Fedorova, J. D. Smith, L. Perera, R. Snow, Gareth Hughes, E. J. Mannel, R. W. Springer, C. C. H. Jui, J. R. Thomas, S. Westerhoff, Tareq Abu-Zayyad, K. Kim, G. Martin, B. T. Stokes, Segev BenZvi, Steve Schnetzer, S. B. Thomas, Jose A. Bellido, K. Martens, J. H. Boyer, Bruce R. Dawson, Roger W Clay, M. M. Maetas, A. Zech, Pierre Sokolsky, W. Deng, C. B. Finley, Douglas Bergman, Gordon Thomson, Z. Cao, Lawrence Wiencke, Konstantin Belov, P. Hüntemeyer, M. A. Kirn, K. M. Simpson, John N. Matthews, R. W. Atkins, Kevin Reil, G. W. Burt, E. C. Loh, N. Manago, M. Sasaki, G. Archbold, William Hanlon, Rasha Abbasi
Publikováno v:
The Astrophysical Journal. 622:910-926
The composition of Ultra High Energy Cosmic Rays (UHECR) is measured with the High Resolution Fly's Eye cosmic ray observatory (HiRes) data using the Xmax technique. Data were collected in stereo between 1999 November and 2001 September. The data are
Autor:
B.M. Connolly, A. O’Neill, L. Perera, Z. Cao, N. Manago, R. W. Springer, Gordon Thomson, G. Archbold, J. Findlay, John N. Matthews, John Belz, P. Hüntemeyer, G. W. Burt, Michael H. Holzscheiter, R. Snow, K. Martens, J. R. Thomas, Douglas Bergman, B. T. Stokes, A. Zech, S. Westerhoff, W. Deng, K. Kim, Bruce R. Dawson, Dale Tupa, M. D. Roberts, C. B. Finley, C. M. Hoffman, R. W. Atkins, M. A. Kirn, G. Sinnis, Y. Fedorova, Jose A. Bellido, Gareth Hughes, Tareq Abu-Zayyad, L. J. Marek, Pierre Sokolsky, Lawrence Wiencke, M. Sasaki, E. C. Loh, C. C. H. Jui, S. B. Thomas, James F. Amann, Segev BenZvi, R. Riehle, J. D. Smith, C. A. Painter, William Hanlon, Rasha Abbasi, J. A.J. Matthews, C. Song, Kevin Reil, K. M. Simpson, Konstantin Belov, M. M. Maestas, Steve Schnetzer, Roger W Clay
Publikováno v:
Astroparticle Physics. 22:139-149
In the past few years, small scale anisotropy has become a primary focus in the search for source of Ultra-High Energy Cosmic Rays (UHECRs). The Akeno Giant Air Shower Array (AGASA) has reported the presence of clusters of event arrival directions in
Autor:
Douglas Bergman, J. A.J. Matthews, J. D. Smith, R. Snow, M. A. Kirn, C. Song, Kevin Reil, B. C. Knapp, R. W. Springer, Jose A. Bellido, W. Deng, S. Westerhoff, Gordon Thomson, L. J. Marek, G. Archbold, K. Kim, M. M. Maestas, M. Seman, R. Riehle, C. A. Painter, Michael H. Holzscheiter, Dale Tupa, C. C. H. Jui, Lawrence Wiencke, John N. Matthews, Pierre Sokolsky, R. W. Atkins, James F. Amann, S. B. Thomas, M. Sasaki, Segev BenZvi, M. D. Roberts, Z. Cao, Roger W Clay, E. J. Mannel, C. M. Hoffman, G. Sinnis, E. C. Loh, William Hanlon, Y. Fedorova, Rasha Abbasi, Konstantin Belov, A. O’Neill, K. M. Simpson, C. B. Finley, Steve Schnetzer, L. Perera, N. Manago, J. Findlay, John Belz, B. T. Stokes, J. H. Boyer, Bruce R. Dawson, J. R. Thomas, Gareth Hughes, Tareq Abu-Zayyad, G. W. Burt, B.M. Connolly, P. Hüntemeyer, K. Martens, A. Zech
Publikováno v:
The Astrophysical Journal. 610:L73-L76
The High Resolution Fly's Eye (HiRes) experiment is an air fluorescence detector which, operating in stereo mode, has a typical angular resolution of 06 and is sensitive to cosmic rays with energies above 1018 eV. The HiRes cosmic-ray detector is thu
Autor:
A. J. Smith, Miguel F. Morales, A. Shoup, Kelin Wang, D. G. Coyne, C. M. Hoffman, R. W. Ellsworth, Mark L. McConnell, J. F. McCullough, S. Westerhoff, M. O. Wascko, Tumay O. Tumer, B. Shen, R. W. Atkins, James M. Ryan, T. Yang, Wystan Benbow, R. Fleysher, Peter Nemethy, D. Berley, L. A. Kelley, Allen Mincer, Todd Haines, Richard Miller, L. Fleysher, M. L. Chen, I. Leonor, G. W. Sullivan, Brenda Dingus, D. E. Dorfan, Galen Gisler, J. A. Goodman, A. Falcone, J. E. McEnery, S. Hugenberger, David A. Williams, D. Evans, C. Sinnis, G. B. Yodh
Publikováno v:
The Astrophysical Journal. 533:L119-L122
Milagrito, a detector sensitive to very high energy gamma rays, monitored the northern sky from 1997 February through 1998 May. With a large field of view and a high duty cycle, this instrument was well suited to perform a search for TeV gamma-ray bu
Autor:
M. J. Almond, R. W. Atkins
Publikováno v:
ChemInform. 25