Results 61 to 70 of about 965 (178)

Editorial to the Special Issue: “Recent Advances in Gamma Ray Astrophysics and Future Perspectives”

Universe
This Special Issue is a collection of reviews highlighting the recent progress in the very vast and closely related fields of γ-ray astrophysics and astro-particle physics in recent years, looking toward a very promising future [...]
Patrizia Romano
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Deterministic Propagation of Suprathermal Ions Through the Heliosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The PEPSSI instrument onboard New Horizons is sampling the energy range that bridges pickup and suprathermal He+ ${\mathrm{H}\mathrm{e}}^{+}$ ions for the first time in the outer heliosphere. New Horizons repeatedly encountered structures beyond 30 au that we interpret as the spiral of a corotating interaction region (CIR) for an extended ...
P. Kollmann, E. C. Roelof, M. E. Hill, R. B. Decker, P. Brandt, R. L. McNutt Jr., P. S. Mostafavi, R. Nikoukar, J. W. Parker, K. N. Singer, J. Spencer, A. Stern, A. J. Verbiscer   +12 more
wiley   +1 more source

Physics and astrophysics with gamma-ray telescopes [PDF]

Nuclear Physics B - Proceedings Supplements, 2012
invited review at Neutrino 2010, Athens, Greece, June 2010, 2 figures, 1 table, 7 pages; v2 has "references" title fixed in formatting and clarified table 1 in ...
openaire   +2 more sources

Predicting Multiwavelength Emission Associated with X-Ray Flares and Extended Emission of Gamma-Ray Bursts

The Astrophysical Journal
Gamma-ray bursts (GRBs) are among the most extreme transients in the Universe, but their explosion and emission mechanisms remain unclear. To investigate the nature of GRB jets, we focus here on X-ray flares (XFs) and extended emissions (EEs), which are ...
Riki Matsui, Shigeo S. Kimura, Kohta Murase, B. Theodore Zhang   +3 more
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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
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Astrophysical Gamma Ray Emission Lines [PDF]

, 1995
Plain TEX file, 28 pages with 14 figures available upon e-mail request to ramaty@pair.lheavx.gsfc.nasa.gov. In press, 1995, in The Analysis of Emission Lines, eds. R. E. Williams and M. Livio, (Cambridge: Cambridge Univ. Press), based on an invited talk at the Analysis of Emission Lines Conference, Space Telescope Science Institute, May 1994.
Ramaty, R., Lingenfelter, R. E.
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The Universe Observed with Particle Detectors: Astrophysical Legacy of Guido Barbiellini Amidei

Condensed Matter
The development of modern high-energy astrophysics has been deeply intertwined with advances in particle detector technology. Guido Barbiellini Amidei (1943–2024) played a pivotal role in bridging experimental particle physics and astrophysical ...
Roberto Capuzzo Dolcetta
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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

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
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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
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