Results 1 to 10 of about 1,019 (146)

Design Considerations for Large Detector Arrays on Submillimeter-wave Telescopes [PDF]

, 2000
The emerging technology of large (~ 10,000 pixel) submillimeter-wave bolometer arrays presents a novel optical design problem---how can such arrays be fed by diffraction-limited telescope optics where the primary mirror is less than 100,000 wavelengths ...
Stark, Antony A.
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The History of Astrophysics in Antarctica [PDF]

, 2004
We examine the historical development of astrophysical science in Antarctica from the early 20th century until today. We find three temporally overlapping eras, each having a rather distinct beginning.
Andres, Andrewes, Aristidi, Ashley, Ashley, Balthasar T. Indermuehle, Barwick, Bayly, Bayly, Boggs, Burton, Chamberlin, Chen, Cordaro, Dempsey, Dragovan, Duldig, Engargiola, Fossat, Fowler, Gillingham, Gillingham, Grec, Gurney, Halzen, Harper, Harvey, Jacklyn, Jacklyn, Keating, Kowitt, Lane, Law, Lawrence, Loewenstein, Marks, Marks, Marks, Mawson, McCracken, Michael G. Burton, Morse, Mosconi, Mullan, Opdishaw, Pajot, Parsons, Parsons, Piccirillo, Pomerantz, Pomerantz, Rathborne, Ravick, Rust, Sarah T. Maddison, Shea, Shima, Storey, Storey, Storey, Swain, Tolstikov, Tosti, Travouillon, Travouillon, Travouillon, Valenziano, van Stekelenborg, Walker, Walker, Wiebusch, Yngvesson, Yoshida   +72 more
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Particle Candidates of Ultrahigh Energy Cosmic Rays [PDF]

, 2001
We discuss candidates for trans-GZK cosmic rays observed in a variety of detectors. Three types of primaries are represented among the abstracts submitted to this meeting: neutrin os causing a Z-burst, protons arising from the decay of ultra-heavy ...
Domokos, G., Kovesi-Domokos, S.
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Acceleration and radiation of ultra-high energy protons in galaxy clusters [PDF]

, 2009
Clusters of galaxies are believed to be capable to accelerate protons at accretion shocks to energies exceeding 10^18 eV. At these energies, the losses caused by interactions of cosmic rays with photons of the Cosmic Microwave Background Radiation (CMBR)
A. Prosekin, Abraham, Aharonian, Aharonian, Aleksic, Allard, Atoyan, Berezinsky, Berezinsky, Bertschinger, Blasi, Blasi, Borgani, Brunetti, Carilli, Clarke, Dennison, Dolag, Eckert, F. A. Aharonian, Franceschini, Fusco-Femiano, G. Vannoni, Gabici, Govoni, Hillas, Inoue, Kang, Kang, Kang, Kelner, Kushnir, Loeb, Malkov, Miniati, Newman, Norman, Ostrowski, Perkins, Petrosian, Pfrommer, Ryu, S. Gabici, S. R. Kelner, Sarazin, Schlickeiser, Timokhin, Tribble, Vannoni, Völk   +49 more
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Working Group Report: Neutrino and Astroparticle Physics [PDF]

, 2004
This is the report of neutrino and astroparticle physics working group at WHEPP-8. We present the discussions carried out during the workshop on selected topics in the above fields and also indicate progress made subsequently.
A Albrecht, A Salam, A. Bandyopadhyay, A. Dighe, A. M. Srivastava, A. Samanta, B. Brahmachari, B. Layek, C Deffayet, C. Burgess, D. Choudhury, D. Indumathi, D. Majumdar, D. P. Roy, E. J. Chun, G. Rajasekaran, I Antoniadis, J F Beacom, J Hughes, J Hughes, J J Yoo, J N Bahcall, J. Forshaw, K. Agashe, K. Bhattacharya, L Randall, M Kaplinghat, M Kaplinghat, M. K. Parida, M. Kaplinghat, M. Ravikumar, N Arkani-Hamed, N Arkani-Harried, N. Gupta, N. Mahajan, N. Mondai, N. Sahu, O Zahn, P Zucchelli, P. K. Das, P. Mehta, P. Ramadevi, P. Roy, R N Mohapatra, R. Godbole, R. N. Mohapatra, R. Rangarajan, R. Vaidya, Raghavan Rangarajan, S Bashinsky, S J Huber, S J Huber, S J Huber, S J Huber, S. D. Rindani, S. Goswami, S. More, S. Pakvasa, S. Uma Sankar, Srubabati Goswami, T Gherghetta, U. Yajnik, V D Barger, X Chen, Y Aghababaie, Y Grossman, Y. Nir, Y. Shadmi, Y. Y. Keum   +68 more
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Anisotropy of the Microwave Sky at 90 GHz: Results from Python II [PDF]

, 1995
We report on additional observations of degree scale anisotropy at 90~GHz from the Amundsen-Scott South Pole Station in Antarctica. Observations during the first season with the Python instrument yielded a statistically significant sky signal; in this ...
G. Novak, J. E. Ruhl,, J. Kovac,, M. Dragovan,, Ruhl J. E., S. R. Platt,   +5 more
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Cosmic microwave background polarization, Faraday rotation and stochastic gravity-waves backgrounds [PDF]

, 1997
A magnetic field, coherent over the horizon size at the decoupling and strong enough to rotate the polarization plane of the CMBR, can be generated from the electromagnetic vacuum fluctuations amplified by the space-time evolution of the dilaton coupling.
A. Abramovici, A. Brandenburg, A. C. Davis, A. Kosowsky, A. Lukas, B. Allen, B. Allen, B. Caron, B. Cheng, B. Cheng, B. Cheng, B. Ratra, C. Bradaschia, C. Lovelace, D. Coulson, D. Grasso, D. Grasso, D. Harari, E. J. Copeland, E. J. Copeland, E. Milaneschi, E. N. Parker, E. R. Harrison, E. S. Fradkin, F. Pegoraro, G. Veneziano, I. Antoniadis, J. M. Quashnock, K. S. Thorne, L. P. Grishchuk, M. Abramowitz, M. Gasperini, M. Gasperini, M. Gasperini, M. Gasperini, M. Gasperini, M. Gasperini, M. Gasperini, M. Giovannini, M. Giovannini, M. J. Rees, M. Joyce, M. Rees, M. S. Turner, Massimo Giovannini, N. D. Birrel, N. Kaloper, P. Kernan, P. M. Lubin, P. M. Lubin, P. Olesen, P. P. Kronberg, R. Brustein, R. Brustein, R. M. Kulsrud, S. I. Vainstein, S. Vitale, S. Weinberg, S. Y. Rey, T. Vachaspati, V. Kaplunovsky, V. Kaplunovsky, Y. B. Zeldovich   +62 more
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Observation of the Ankle and Evidence for a High-Energy Break in the Cosmic Ray Spectrum [PDF]

, 2005
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.
A. O'Neill, A. Zech, Abbasi, Abbasi, Abbasi, Abu-Zayyad, Abu-Zayyad, Ave, B.C. Connolly, B.R. Dawson, B.T. Stokes, Bahcall, Baker, Berezinsky, Bird, Boyer, C. Song, C.A. Painter, C.B. Finley, C.C.H. Jui, C.M. Hoffman, D. Tupa, D.R. Bergman, De Marco, Dicke, E.G. Loh, G. Archbold, G. Sinnis, G.A. Hughes, G.B. Thomson, G.W. Burt, Girard, Greisen, J. Findlay, J.A. Bellido, J.A.J. Matthews, J.D. Smith, J.F. Amman, J.N. Matthews, J.R. Thomas, J.W. Belz, K. Belov, K. Kim, K. Martens, K. Reil, K.M. Simpson, Kakimoto, Kalmykov, L. Perera, L.J. Marek, L.R. Wiencke, M. Roberts, M. Sasaki, M.A. Kirn, M.H. Holzscheiter, M.M. Maestas, N. Manago, Nagano, P. Hüntemeyer, P. Sokolsky, Penzias, Protheroe, R. Atkins, R. Riehle, R. Snow, R.U. Abbasi, R.W. Clay, R.W. Springer, S. Westerhoff, S.B. Thomas, S.R. Schnetzer, S.Y. Ben Zvi, Scully, Smoot, Song, T. Abu-Zayyad, Takeda, W. Deng, W.F. Hanlon, Waxman, Y. Fedorova, Z. Cao, Zatsepin, Zech, Zech   +84 more
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Determining the Cosmic Equation of State Using Future Gravitational Wave Detectors [PDF]

, 2001
The expected chirp mass distribution of observed events for future gravitational wave detectors is extensively investigated in the presence of an exotic fluid component with an arbitrary equation of state, $-1 \leq \omega_x \equiv p_x/\rho_x < 0$, i.e ...
Abramovici, Caldwell, Caron, Carroll, Chernoff, Chiba, Cooray, Cutler, D. Tatsumi, Efstathiou, Finn, Finn, Futamase, Garnavich, Huey, Lima, Lima, Lipunov, M.-K. Fujimoto, Madau, Markovic, Nakamura, Perlmutter, Perlmutter, Phinney, Riess, Schutz, Schutz, Spergel, Steidel, Steinhardt, Turner, Tutukov, Waga, Wang, Wang, Weinberg, Z.-H. Zhu, Zhu, Zhu, Zhu, Zlatev   +41 more
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New Constraints on a Light Spinless Particle Coupled to Photons [PDF]

, 1997
We obtain new stringent constraints on a light spinless particle phi coupled only to photons at low energies, considering its effects on the extragalactic photon background, the blackbody spectrum of the CMBR and the cosmological abundance of deuterium ...
Masso, Eduard, Toldra, Ramon
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