Results 81 to 90 of about 4,292,570 (358)

All-particle cosmic ray energy spectrum measured by the HAWC experiment from 10 to 500 TeV [PDF]

, 2017
We report on the measurement of the all-particle cosmic ray energy spectrum with the High Altitude Water Cherenkov (HAWC) Observatory in the energy range 10 to 500 TeV. HAWC is a ground-based air-shower array deployed on the slopes of Volcan Sierra Negra
H. C. R. A. C. Alvarez, R. Arceo, J. C. Arteaga-Vel'azquez, D. Rojas, H. Solares, A. Barber, A. Becerril, E. Belmont-Moreno, S. Benzvi, C. Brisbois, K. Caballero-Mora, T. Capistr'an, A. Carramiñana, S. Casanova, M. Castillo, U. Cotti, J. Cotzomi, S. C. D. Le'on, C. D. Le'on, E. D. L. Fuente, R. Hernández, S. Dichiara, B. Dingus, M. DuVernois, J. C. D'iaz-V'elez, R. Ellsworth, O. Enŕıquez-Rivera, D. Fiorino, H. Fleischhack, N. Fraija, J. A. Garc'ia-Gonz'alez, A. G. Muñoz, M. Gonz'alez, J. Goodman, Z. Hampel-Arias, J. P. Harding, A. Hernández-Almada, J. Hinton, F. Hueyotl-Zahuantitla, C. Hui, P. Huntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, S. Kaufmann, A. Lara, R. Lauer, D. Lennarz, H. L. Vargas, J. Linnemann, A. Longinotti, G. Raya, R. Luna-Garc'ia, D. L'opez-C'amara, R. L'opez-Coto, K. Malone, S. Marinelli, O. Martinez, I. Martinez-Castellanos, J. Mart'inez-Castro, H. Mart'inez-Huerta, J. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostaf'a, L. Nellen, M. Newbold, M. Nisa, R. Noriega-Papaqui, R. Pelayo, J. Pretz, E. G. P'erez-P'erez, Z. Ren, C. Rho, C. Rivière, D. Rosa-Gonz'alez, M. Rosenberg, E. Ruiz-Velasco, F. Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, G. Sinnis, A. Smith, R. Springer, P. Surajbali, I. Taboada, O. Tibolla, K. Tollefson, I. Torres, T. Ukwatta, L. Villaseñor, T. Weisgarber, S. Westerhoff, J. Wood, T. Yapici, A. Zepeda, H. Zhou, J. D. '. I. D. F'isica, Universidad Nacional Autnoma de M'exico, Universidad Aut'onoma de Chiapas, Tuxtla Guti'errez Chiapas, Mexico Universidad Michoacana de San Nicol'as de Hidalgo, Morelia, M. D. O. Physics, M. University, Houghton, Mi, USA. Department of physics, Astronomy, U. Utah, Salt lake City, Ut, U. Rochester, Rochester, Ny, Usa Instituto Nacional de Astrof'isica, 'optica y Electr'onica, Tonantzintla, Puebla, Mexico Instytut Fizyki Jadrowej im Henryka Niewodniczansk Nauk, Kraków, Poland 9 Max-Planck Institute for Nuclear Physics, Heidelberg, Germany Facultad de Ciencias F'isico Matem'aticas, Benem'erita Universidad Aut'onoma de Puebla, Mexico Departamento de F'isica, Centro Universitario de Ciencias Exactase Ingenierias, Universidad de Guadalajara, Guadalajara, M. I. D. Astronom'ia, M'exico City, M. P. Division, L. Laboratory, L. Alamos, Nm, U. Wisconsin--Madison, Madison, Wi, USA. Department of physics, Computational Sciences, George Mason University, Fairfax, Va, Usa Instituto de Geof'isica, U. Maryland, College Park, Md, Usa Nasa Marshall Space Flight Center, Astrophysics Office, Huntsville, Al., U. N. Mexico, Albuquerque, Center for Relativistic Astrophysics - Georgia Institute Technology, Atlanta, Ga, M. University, E. Lansing., Usa Universidad Politecnica de Pachuca, Pachuca, Hidalgo, Mexico Centro de Investigac'ion en Computac'ion, I. Nacional, Mexico C'atedras ConacytInstituto de Astronom'ia, P. S. University, University Park, Pa, U. P. Department, C. D. I. Y. D. E. A. D. Ipn, Mexico Universidad Michoacana de San Nicol'as de Hidalgo, M. I. D. C. Nucleares, M. D. R. L. F. A. Physics, U. California, Santa Cruz, Ca, Usa   +176 more
semanticscholar   +1 more source

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy. [PDF]

Physical Review Letters, 2016
We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(stat)±6.7(syst)  
A. Aab, P. Abreu, M. Aglietta, E. Ahn, I. Al Samarai, I. Albuquerque, I. Allekotte, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, G. A. Anastasi, L. Anchordoqui, S. Andringa, C. Aramo, F. Arqueros, N. Arsene, Hernán Asorey, P. Assis, J. Aublin, G. Avila, N. Awal, A. Badescu, C. Baus, J. Beatty, K. Becker, J. Bellido, C. Bérat, M. Bertaina, X. Bertou, P. Biermann, P. Billoir, S. Blaess, A. Blanco, M. Blanco, J. Blažek, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, N. Borodai, J. Brack, I. Brancus, T. Bretz, A. Bridgeman, P. Brogueira, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. Caballero-Mora, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A. Chavez, A. Chiavassa, J. Chinellato, J. Chudoba, M. Cilmo, R. Clay, G. Cocciolo, R. Colalillo, A. Coleman, L. Collica, M. Coluccia, R. Conceição, F. Contreras, M. Cooper, A. Cordier, S. Coutu, C. Covault, J. Cronin, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. Dawson, R. D. de Almeida, S. de Jong, G. De Mauro, Joao R. T. de Mello Neto, I. De Mitri, J. de Oliveira, V. de Souza, L. Del Peral, O. Deligny, N. Dhital, C. Di Giulio, A. di Matteo, J. Diaz, M. L. Díaz Castro, F. Diogo, C. Dobrigkeit, W. Docters, J. D'Olivo, A. Dorofeev, Q. Dorosti Hasankiadeh, R. D. dos Anjos, M. Dova, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C. Escobar, J. Espadanal, A. Etchegoyen, H. Falcke, K. Fang, G. Farrar, A. Fauth, N. Fazzini, A. Ferguson, B. Fick, J. M. Figueira, A. Filevich, A. Filipčič, O. Fratu, M. Freire, T. Fujii, B. Garcia, D. Garcia-Gamez, D. García-Pinto, F. Gaté, H. Gemmeke, A. Gherghel-Lascu, P. Ghia, U. Giaccari, M. Giammarchi, M. Giller, D. Glas, C. Glaser, H. Glass, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, N. González, B. Gookin, J. Gordon, A. Gorgi, P. Gorham, P. Gouffon, N. Griffith, A. Grillo, T. D. Grubb, F. Guarino, G. Guedes, M. Hampel, P. Hansen, D. Harari, T. Harrison, S. Hartmann, J. Harton, A. Haungs, T. Hebbeker, D. Heck, P. Heimann, A. Hervé, G. Hill, C. Hojvat, N. Hollon, E. Holt, P. Homola, J. Hörandel, P. Horváth, M. Hrabovsky, D. Huber, T. Huege, A. Insolia, P. G. Isar, I. Jandt, S. Jansen, C. Jarne, J. Johnsen, M. Josebachuili, A. Kääpä, O. Kambeitz, K. Kampert, P. Kasper, I. Katkov, B. Keilhauer, E. Kemp, R. Kieckhafer, H. Klages, M. Kleifges, J. Kleinfeller, R. Krause, N. Krohm, D. Kuempel, G. Kukec Mezek, N. Kunka, A. Kuotb Awad, D. LaHurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. Le Coz, D. Lebrun, P. Lebrun, M. A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, L. Lopes, R. Lopez, A. López Casado, K. Louedec, A. Lucero, M. Malacari, M. Mallamaci, J. Maller, D. Mandát, P. Mantsch, A. Mariazzi, V. Marin, I. Mariş, G. Marsella, D. Martello, H. Martinez, O. M. Martinez Bravo, D. Martraire, J. J. Masías Meza, H. Mathes, S. Mathys, J. Matthews, J. Matthews, G. Matthiae, D. Maurizio, E. Mayotte, P. Mazur, C. Medina, G. Medina-Tanco, R. Meißner, V. Mello, D. Melo, A. Menshikov, S. Messina, M. Micheletti, L. Middendorf, I. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, F. Montanet, C. Morello, M. Mostafá, C. Moura, M. Muller, G. Müller, S. Müller, S. Navas, P. Nečesal, L. Nellen, A. Nelles, J. Neuser, P. Nguyen, M. Niculescu-Oglinzanu, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, L. Nožka, L. Núñez, L. Ochilo, F. Oikonomou, A. Olinto, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, P. Papenbreer, G. Parente, A. Parra, T. Paul, M. Pech, J. Pȩkala, R. Pelayo, I. Pepe, L. Perrone, E. Petermann, C. Peters, S. Petrera, Y. Petrov, J. Phuntsok, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, A. Porcelli, C. Porowski, R. Prado, P. Privitera, M. Prouza, E. Quel, S. Querchfeld, S. Quinn, J. Rautenberg, O. Ravel, D. Ravignani, D. Reinert, B. Revenu, J. Řídký, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, J. R. Rodriguez Rojo, M. Rodríguez-Frías, D. Rogozin, J. Rosado, M. Roth, E. Roulet, A. Rovero, S. Saffi, A. Săftoiu, H. Salazar, A. Saleh, F. Salesa Greus, G. Salina, J. Sanabria Gomez, F. Sánchez, P. Sanchez-Lucas, E. Santos, E. Santos, F. Sarazin, B. Sarkar, R. Sarmento, C. Sarmiento-Cano, R. Sato, C. Scarso, M. Schauer, V. Scherini, H. Schieler, D. Schmidt, O. Scholten, H. Schoorlemmer, P. Schovánek, F. Schröder, A. Schulz, J. Schulz, J. Schumacher, S. Sciutto, A. Segreto, M. Settimo, A. Shadkam, R. Shellard, G. Sigl, O. Sima, A. Śmiałkowski, R. Smida, G. Snow, P. Sommers, S. Sonntag, J. Sorokin, R. Squartini, Y. Srivastava, D. Stanca, S. Stanič, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, M. Suarez Durán, T. Suomijärvi, A. Supanitsky, M. Sutherland, J. Swain, Z. Szadkowski, O. Taborda, A. Tapia, A. Tepe, V. M. Theodoro, C. Timmermans, C. J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, G. Torralba Elipe, D. Torres Machado, P. Trávníček, M. Trini, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, P. van Bodegom, A. M. van den Berg, S. van Velzen, A. van Vliet, E. Varela, B. Vargas Cárdenas, G. Varner, R. Vasquez, J. R. Vázquez, R. Vazquez, D. Veberič, V. Verzi, J. Vícha, M. Videla, L. Villaseñor, B. Vlcek, S. Vorobiov, H. Wahlberg, O. Wainberg, D. Walz, A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, C. Welling, F. Werner, A. Widom, L. Wiencke, H. Wilczynski, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wykes, L. Yang, T. Yapici, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, A. Zepeda, B. Zimmermann, M. Ziolkowski, F. Zuccarello   +448 more
semanticscholar   +1 more source

The Interaction of Cosmic Rays with Diffuse Clouds [PDF]

, 2011
We study the change in cosmic-ray pressure, the change in cosmic-ray density, and the level of cosmic-ray induced heating via Alfven-wave damping when cosmic rays move from a hot ionized plasma to a cool cloud embedded in that plasma. The general analysis method outlined here can apply to diffuse clouds in either the ionized interstellar medium or in ...
arxiv   +1 more source

Stellar versus Galactic: The intensity of energetic particles at the evolving Earth and young exoplanets [PDF]

arXiv, 2021
Energetic particles may have been important for the origin of life on Earth by driving the formation of prebiotic molecules. We calculate the intensity of energetic particles, in the form of stellar and Galactic cosmic rays, that reach Earth at the time when life is thought to have begun ($\sim$3.8Gyr ago), using a combined 1.5D stellar wind model and ...
arxiv  

Lithium-6 and Gamma Rays: Complementary Constraints on Cosmic-Ray History [PDF]

Astrophys.J. 623 (2005) 877-888, 2004
The rare isotope 6Li is made only by cosmic rays, dominantly in alpha+alpha fusion reactions with ISM helium. Consequently, this nuclide provides a unique diagnostic of the history of cosmic rays in our Galaxy. The same hadronic cosmic-ray interactions also produce high-energy gamma rays (mostly via neutral pion production).
arxiv   +1 more source

Impact of Fermi-LAT and AMS-02 results on cosmic-ray astrophysics

, 2015
This article reviews a few topics relevant to Galactic cosmic-ray astrophysics, focusing on the recent AMS-02 data release and Fermi Large Area Telescope data on the diffuse Galactic gamma-ray emissivity.
Dermer, Charles D.
core   +2 more sources

Human Physiological Parameters Related to Solar and Geomagnetic Disturbances: Data from Different Geographic Regions

Atmosphere, 2021
It is well known that the various manifestations of space weather can influence a wide range of human activities, from technological systems to human health. Various earlier, as well as more recent multi-disciplinary heliobiological and biometeorological
Helen Mavromichalaki, Maria-Christina Papailiou, Maria Gerontidou, Svetla Dimitrova, Karel Kudela   +4 more
doaj   +1 more source

COSMIC RAYS AT THE KNEE [PDF]

Energy Budget in the High Energy Universe, 2007
Several kinds of measurements are combined in an attempt to obtain a consistent estimate of the spectrum and composition of the primary cosmic radiation through the knee region. Assuming that the knee is a signal of the high-energy end of a galactic cosmic-ray population, I discuss possible signatures of a transition to an extra-galactic population and
openaire   +3 more sources

Cosmic Ray and Neutrino Emission from Gamma-Ray Bursts with a Nuclear Cascade [PDF]

, 2017
We discuss neutrino and cosmic-ray emission from Gamma-Ray Bursts (GRBs) with the injection of nuclei, where we take into account that a nuclear cascade from photo-disintegration can fully develop in the source.
D. Biehl, D. Boncioli, A. Fedynitch, W. Winter   +3 more
semanticscholar   +1 more source

From Brad to worse: Rule‐consequentialism and undesirable futures

Ratio, Volume 35, Issue 4, Page 275-288, December 2022., 2022
Abstract This paper asks how rule‐consequentialism might adapt to very adverse futures, and whether moderate liberal consequentialism can survive into broken futures and/or futures where humanity faces imminent extinction. The paper first recaps the recent history of rule‐consequentialist procreative ethics.
Tim Mulgan
wiley   +1 more source