Article
Physics, Multidisciplinary
Bing-Qiang Qiao, Wei Liu, Meng-Jie Zhao, Xiao-Jun Bi, Yi-Qing Guo
Summary: The Tibet ASy experiment has reported the measurement of sub-PeV diffuse gamma-ray emission from the Galactic disk, providing direct evidence for the acceleration of Galactic Cosmic Rays (GCRs) beyond PeV energies. However, there is a tension between the observed sub-PeV diffuse gamma-ray flux and the local CR spectrum, suggesting the need for further investigation and explanation of this phenomenon.
FRONTIERS OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Bing-Qiang Qiao, Wei Liu, Meng-Jie Zhao, Xiao-Jun Bi, Yi-Qing Guo
Summary: The Tibet AS gamma experiment has reported the measurement of sub-PeV diffuse gamma-ray emission from the Galactic disk, providing direct evidence that Galactic Cosmic Rays (GCRs) can be accelerated beyond PeV energies. However, there is a tension between the sub-PeV diffuse gamma-ray and the local CR spectrum, indicating a need for further investigation.
FRONTIERS OF PHYSICS
(2022)
Article
Astronomy & Astrophysics
Donglin Wu
Summary: The acceleration of positrons to high energies by pulsar wind nebulae is believed to be the primary source of the positron excess phenomenon.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
Pedro De La Torre Luque
Summary: Recent cosmic-ray studies have suggested a possible excess in the antiproton flux around 10 GeV, potentially related to dark matter, but with significant uncertainties. Through a Markov-Chain Monte Carlo analysis, researchers evaluated the origin of the excess and found a proton ratio matching AMS-02 data, with a remaining constant excess of around 10%.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2021)
Review
Engineering, Aerospace
D. Podorozhny, V. Grebenyuk, D. Karmanov, I. Kovalev, I. Kudryashov, A. Kurganov, M. Merkin, A. Panov, L. Tkachev, A. Turundaevskiy, O. Vasiliev, A. Voronin
Summary: This article provides a brief review of the results obtained from the NUCLEON observatory during three years of operation in orbit. The spectra of the main primary nuclei and secondary nuclei of cosmic rays are presented, and some new interesting features found in the NUCLEON data are discussed.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Astronomy & Astrophysics
Christopher M. Karwin, Thomas Siegert, Jacqueline Beechert, John A. Tomsick, Troy A. Porter, Michela Negro, Carolyn Kierans, Marco Ajello, Israel Martinez-Castellanos, Albert Shih, Andreas Zoglauer, Steven E. Boggs
Summary: This article reports the measurements of the Galactic diffuse continuum emission (GDCE) observed by the Compton Spectrometer and Imager (COSI) during its flight in 2016. The results show overall good agreement with previous measurements and discuss the potential for further research using the COSI balloon data and future satellite missions.
ASTROPHYSICAL JOURNAL
(2023)
Article
Physics, Multidisciplinary
Antonio Ambrosone, Marco Chianese, Damiano F. G. Fiorillo, Antonio Marinelli, Gennaro Miele
Summary: Starburst galaxies are potential sources of high-energy gamma rays, and their cosmic-ray spectrum distortion can be indirectly observed. Current data provide tight bounds on the cross section between protons and dark matter, while future measurements are expected to significantly improve these limits.
PHYSICAL REVIEW LETTERS
(2023)
Article
Engineering, Aerospace
Ramanath Cowsik, Dawson Huth
Summary: We use a phenomenological approach in a minimal model to study the spectral intensity of secondary cosmic-ray particles such as positrons, antiprotons, Lithium, Beryllium, and Boron. Our analysis shows that at GeV energies, cosmic rays traverse a significant amount of matter in the regions surrounding their sources. This amount decreases with increasing cosmic-ray energy and becomes negligible beyond 100 GeV. In the interstellar medium, cosmic rays of all energies up to 105 GeV/n pass through approximately 1-2 g/cm2 of matter before entering the intergalactic medium. The bulk of positrons and antiprotons are generated in the interstellar medium. Additionally, cosmic-ray nuclei like C, N, and O produce additional amounts of Li, Be, and B nuclei with spectra similar to those of C, O, etc. The implications of these minimal model findings for gamma-ray observations and the importance of spatial and temporal discreteness of cosmic-ray sources for modeling cosmic-ray propagation are briefly discussed.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Astronomy & Astrophysics
P. De La Torre Luque, M. N. Mazziotta, A. Ferrari, F. Loparco, P. R. Sala, D. Serini
Summary: This study investigates the secondary particles produced in spallation reactions of cosmic rays with the interstellar gas by developing a new set of cross sections using the FLUKA Monte Carlo nuclear code. The cross sections are compared to experimental data and found to be in good agreement. The study also predicts an energy-dependence of the flux ratios of B, Be, and Li which is consistent with AMS-02 data. Additionally, the study calculates the cross sections of gamma ray production and compares them to observational data, finding a very good agreement.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
P. De La Torre Luque, M. N. Mazziotta, F. Loparco, F. Gargano, D. Serini
Summary: Advancements in cosmic-ray flux measurements have been made possible by new experiments and the AMS-02 mission. Using the upcoming DRAGON2 code, researchers studied the impact of cross section uncertainties on light secondary nuclei fluxes, finding that these uncertainties can explain discrepancies in Li and Be fluxes compared to AMS-02 data. Further analysis also provided insights into improving cross section parameterizations for better consistency.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2021)
Article
Astronomy & Astrophysics
Sowmiya Balan, Felix Kahlhoefer, Michael Korsmeier, Silvia Manconi, Kathrin Nippel
Summary: In this work, a novel framework is presented to efficiently marginalize the uncertainties in the propagation of dark matter models, in order to obtain reliable AMS-02 likelihoods. The combination of a neural emulator, a likelihood calculator, and a global fitting framework allows for more accurate constraints on dark matter models.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2023)
Article
Astronomy & Astrophysics
Rita C. dos Anjos, Jaziel G. Coelho, Jonas P. Pereira, Fernando Catalani
Summary: This paper investigates the contribution of cosmic-ray acceleration from SNR G57.2+0.8 hosting SGR J1935+2154 to the high-energy and very high-energy gamma-ray emission using the GALPROP code. The study also discusses the potential for a more comprehensive scenario for the generation of GeV-TeV gamma-rays in the context of the SNR + SGR association.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2021)
Article
Astronomy & Astrophysics
Xiaoyuan Huang, Qiang Yuan, Yi-Zhong Fan
Summary: This study investigates the flaring emission from the Crab Nebula using eleven years of observations from Fermi-LAT, identifying 17 significant flares with one lasting nearly a month. The flare rate is approximately 1.5 per year, with no significant changes or clustering observed. The presence of a special flare with an extremely long duration in 2018 October is highlighted, providing insights into the nature of gamma-ray flares in young pulsar wind nebulae.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Alina Kochocki, Volodymyr Takhistov, Alexander Kusenko, Nathan Whitehorn
Summary: Observations from the IceCube neutrino observatory over the past decade have shown a neutrino sky that does not align with previous expectations for neutrino point-source emissions, leading to a reassessment of the assumed transport and production physics. A new physical explanation for neutrino production from populations of active galactic nuclei and starburst galaxies has been applied to three years of public IceCube point-source data.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Gauri Datar, Geeta Vichare, Selvaraj Chelliah
Summary: Cosmic rays have been extensively studied to understand processes in the universe. Ground observations of secondary cosmic rays, influenced by atmospheric pressure, play a significant role. Correcting for barometric pressure is essential for accurate data analysis.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2021)
Review
Astronomy & Astrophysics
Pasquale Dario Serpico
JOURNAL OF ASTROPHYSICS AND ASTRONOMY
(2018)
Article
Astronomy & Astrophysics
Guillermo Ballesteros, Pasquale D. Serpico, Marco Taoso
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2018)
Article
Astronomy & Astrophysics
Francesca Calore, Pasquale Dario Serpico, Bryan Zaldivar
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2018)
Article
Physics, Multidisciplinary
Francesca Calore, Tania Regimbau, Pasquale Dario Serpico
PHYSICAL REVIEW LETTERS
(2019)
Article
Astronomy & Astrophysics
Leonardo Mastrototaro, Alessandro Mirizzi, Pasquale Dario Serpico, Arman Esmaili
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2020)
Article
Astronomy & Astrophysics
Alexandre Alvarez, Francesca Calore, Anna Genina, Justin Read, Pasquale Dario Serpico, Bryan Zaldivar
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2020)
Article
Physics, Multidisciplinary
Francesca Calore, Alessandro Cuoco, Tania Regimbau, Surabhi Sachdev, Pasquale Dario Serpico
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
Pasquale D. Serpico, Vivian Poulin, Derek Inman, Kazunori Kohri
PHYSICAL REVIEW RESEARCH
(2020)
Article
Physics, Multidisciplinary
Mathieu Boudaud, Yoann Genolini, Laurent Derome, Julien Lavalle, David Maurin, Pierre Salati, Pasquale D. Serpico
PHYSICAL REVIEW RESEARCH
(2020)
Article
Astronomy & Astrophysics
Y. Genolini, P. D. Serpico, P. Tinyakov
Article
Astronomy & Astrophysics
Y. Genolini, M. Boudaud, P. -I. Batista, S. Caroff, L. Derome, J. Lavalle, A. Marcowith, D. Maurin, V. Poireau, V. Poulin, S. Rosier, P. Salati, P. D. Serpico, M. Vecchi
Correction
Astronomy & Astrophysics
Mattia di Mauro, Fiorenza Donato, Andreas Goudelis, Pasquale Dario Serpico
Article
Astronomy & Astrophysics
Vivian Poulin, Pasquale D. Serpico, Francesca Calore, Sebastien Clesse, Kazunori Kohri
Proceedings Paper
Astronomy & Astrophysics
Pierre Salati, Yoann Genolini, Pasquale Serpico, Richard Taillet
RICAP16, 6TH ROMA INTERNATIONAL CONFERENCE ON ASTROPARTICLE PHYSICS
(2017)
Article
Astronomy & Astrophysics
Christopher Eckner, Xian Hou, Pasquale D. Serpico, Miles Winter, Gabrijela Zaharijas, Pierrick Martin, Mattia di Mauro, Nestor Mirabal, Jovana Petrovic, Tijana Prodanovic, Justin Vandenbroucke
ASTROPHYSICAL JOURNAL
(2018)