Results 71 to 80 of about 59,762 (195)

Rotating attosecond electron sheets and ultra-brilliant multi-MeV γ-rays driven by intense laser pulses

High Power Laser Science and Engineering
Isolated multi-MeV $\gamma$ -rays with attosecond duration, high collimation and beam angular momentum (BAM) may find many interesting applications in nuclear physics, astrophysics, etc.
Li-Xiang Hu, Tong-Pu Yu, Yue Cao, Min Chen, De-Bin Zou, Yan Yin, Zheng-Ming Sheng, Fu-Qiu Shao   +7 more
doaj   +1 more source

High Energy Astrophysics Laboratory Contributions to the 18th International Cosmic Ray Conference [PDF]

Gamma ray astrophysics, cosmic rays, solar modulation, solar particles, and instrumentation are ...

core   +1 more source

The Gamma-ray Blazar Quest: new optical spectra, state of art and future perspectives

, 2016
We recently developed a procedure to recognize gamma-ray blazar candidates within the positional uncertainty regions of the unidentified/unassociated gamma-ray sources (UGSs).
Chavushyan, V., Chomiuk, L., Crespo, N. Álvarez, D'Abrusco, R., Jiménez-Bailón, E., La Franca, F., Landoni, M., Masetti, N., Massaro, F., Milisavljevic, D., Paggi, A., Patiño-Álvarez, V., Ricci, F., Smith, Howard A., Strader, J., Tosti, G.   +15 more
core   +1 more source

Exploring the Components of Cosmogenic UHECR, Neutrino, and Diffuse Gamma Ray from High-Energy Astrophysical Objects

Galaxies
The development of multimessenger astrophysics allows us to probe various background particles from the distant early universe. Up to now, much effort has been made researching the emission and radiation of diverse steady or transient astrophysical ...
Fangsheng Min, Hong Lu, Yiqing Guo
doaj   +1 more source

HAWC Performance Enhanced by Machine Learning in Gamma-hadron Separation

The Astrophysical Journal
Improving gamma-hadron separation is one of the most effective ways to enhance the performance of ground-based gamma-ray observatories. With more than a decade of continuous operation, the High-Altitude Water Cherenkov (HAWC) Observatory has contributed ...
R. Alfaro, C. Alvarez, A. Andrés, E. Anita-Rangel, M. Araya, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, R. Babu, P. Bangale, E. Belmont-Moreno, A. Bernal, T. Capistrán, A. Carramiñana, F. Carreón, S. Casanova, U. Cotti, E. De la Fuente, D. Depaoli, P. Desiati, N. Di Lalla, R. Diaz Hernandez, M. A. DuVernois, J. C. Díaz-Vélez, K. Engel, T. Ergin, C. Espinoza, K. L. Fan, N. Fraija, S. Fraija, J. A. García-González, F. Garfias, N. Ghosh, A. Gonzalez Muñoz, M. M. González, J. A. González, J. A. Goodman, S. Groetsch, J. P. Harding, S. Hernández-Cadena, I. Herzog, D. Huang, P. Hüntemeyer, A. Iriarte, S. Kaufmann, D. Kieda, K. Leavitt, J. Lee, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, O. Martinez, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, P. E. Mirón-Enriquez, J. A. Montes, J. A. Morales-Soto, E. Moreno, M. Najafi, A. Nayerhoda, L. Nellen, N. Omodei, M. Osorio, E. Ponce, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, A. Rodriguez Parra, D. Rosa-González, M. Roth, H. Salazar, A. Sandoval, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, E. Varela, L. Villaseñor, X. Wang, Z. Wang, I. J. Watson, H. Wu, S. Yu, H. Zhou, C. de León, (HAWC Collaboration)   +92 more
doaj   +1 more source

Propagation of X-ray and gamma ray emissions in strong magnetic and gravitational fields

Physical Sciences and Technology, 2016
We consider the propagation of X-ray and gamma ray emissions in strong magnetic and gravitational fields of the pulsar in nonlinear vacuum electrodynamics. We show that the radiation has birefrigence.
M. Abishev, N. Beissen, Zh. Brisheva, F. Belissarova   +3 more
doaj  

Performance of the HAWC Observatory and TeV Gamma-Ray Measurements of the Crab Nebula with Improved Extensive Air Shower Reconstruction Algorithms

The Astrophysical Journal
The High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory, located on the side of the Sierra Negra volcano in Mexico, has been fully operational since 2015.
A. Albert, R. Alfaro, C. Alvarez, A. Andrés, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, R. Babu, E. Belmont-Moreno, A. Bernal, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, F. Carreón, S. Casanova, U. Cotti, J. Cotzomi, S. Coutiño de León, E. De la Fuente, C. de León, D. Depaoli, N. Di Lalla, R. Díaz Hernández, B. L. Dingus, M. A. DuVernois, K. Engel, T. Ergin, C. Espinoza, K. L. Fan, K. Fang, N. Fraija, S. Fraija, J. A. García-González, F. Garfias, H. Goksu, M. M. González, J. A. Goodman, S. Groetsch, J. P. Harding, S. Hernández-Cadena, I. Herzog, J. Hinton, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, S. Kaufmann, A. Lara, J. Lee, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Montes, E. Moreno, M. Mostafá, L. Nellen, M. U. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, M. Osorio-Archila, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, D. Salazar-Gallegos, A. Sandoval, M. Schneider, G. Schwefer, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, E. Varela, X. Wang, I. J. Watson, K. Whitaker, E. Willox, H. Wu, S. Yu, S. Yun-Cárcamo, H. Zhou, HAWC Collaboration   +95 more
doaj   +1 more source

Fourteen Years of Education and Public Outreach for the Swift Gamma-ray Burst Explorer Mission

, 2014
The Sonoma State University (SSU) Education and Public Outreach (E/PO) group leads the Swift Education and Public Outreach program. For Swift, we have previously implemented broad efforts that have contributed to NASA's Science Mission Directorate E/PO ...
Cominsky, Lynn, McLin, Kevin, Simonnet, Aurore, Team, the Swift E/PO   +3 more
core  

Astrophysics with High Energy Gamma Rays [PDF]

, 2006
Recent results, the present status and the perspectives of high energy gamma-ray astronomy are described. Since the satellite observations by the Compton Gamma Ray Observatory and its precursor missions have been reviewed extensively, emphasis is on the results from the ground-based gamma-ray telescopes.
openaire   +3 more sources

DmpIRFs and DmpST: DAMPE Instrument Response Functions and Science Tools for Gamma-Ray Data Analysis

, 2019
GeV gamma ray is an important observation target of DArk Matter Particle Explorer (DAMPE) for indirect dark matter searching and high energy astrophysics.
Duan, Kai-Kai, Fan, Yi-Zhong, Gargano, Fabio, Garrappa, Simone, Guo, Dong-Ya, Jiang, Wei, Lei, Shi-Jun, Li, Xiang, Liang, Yun-Feng, Mazziotta, Mario Nicola, Salinas, Maria Fernanda Munoz, Shen, Zhao-Qiang, Su, Meng, Vagelli, Valerio, Xu, Zun-Lei, Yuan, Qiang, Yue, Chuan, Zimmer, Stephan   +17 more
core   +1 more source