يعرض 1 - 10 نتائج من 10 نتيجة بحث عن '"De Angelis, Fabrizio"', وقت الاستعلام: 2.06s تنقيح النتائج
  1. 1
    تقرير

    الوصف: In this paper we report the detection of five strong Gamma-Ray Bursts (GRBs) by the High-Energy Particle Detector (HEPD-01) mounted on board the China Seismo-Electromagnetic Satellite (CSES-01), operational since 2018 on a Sun-synchronous polar orbit at a $\sim$ 507 km altitude and 97$^\circ$ inclination. HEPD-01 was designed to detect high-energy electrons in the energy range 3 - 100 MeV, protons in the range 30 - 300 MeV, and light nuclei in the range 30 - 300 MeV/n. Nonetheless, Monte Carlo simulations have shown HEPD-01 is sensitive to gamma-ray photons in the energy range 300 keV - 50 MeV, even if with a moderate effective area above $\sim$ 5 MeV. A dedicated time correlation analysis between GRBs reported in literature and signals from a set of HEPD-01 trigger configuration masks has confirmed the anticipated detector sensitivity to high-energy photons. A comparison between the simultaneous time profiles of HEPD-01 electron fluxes and photons from GRB190114C, GRB190305A, GRB190928A, GRB200826B and GRB211211A has shown a remarkable similarity, in spite of the different energy ranges. The high-energy response, with peak sensitivity at about 2 MeV, and moderate effective area of the detector in the actual flight configuration explain why these five GRBs, characterised by a fluence above $\sim$ 3 $\times$ 10$^{-5}$ erg cm$^{-2}$ in the energy interval 300 keV - 50 MeV, have been detected.
    Comment: Accepted for publication in The Astrophysical Journal (ApJ)

    الوصول الحر: http://arxiv.org/abs/2310.16670Test

  2. 2
    دورية أكاديمية

    المساهمون: Piersanti, Mirko, Ubertini, Pietro, Battiston, Roberto, Bazzano, Angela, D’Angelo, Giulia, Rodi, James G., Diego, Piero, Zeren, Zhima, Ammendola, Roberto, Badoni, Davide, Bartocci, Simona, Beolè, Stefania, Bertello, Igor, Burger, William J., Campana, Donatella, Cicone, Antonio, Cipollone, Piero, Coli, Silvia, Conti, Livio, Contin, Andrea, Cristoforetti, Marco, De Angelis, Fabrizio, De Donato, Cinzia, De Santis, Cristian, Di Luca, Andrea, Fiorenza, Emiliano, Follega, Francesco Maria, Gebbia, Giuseppe, Iuppa, Roberto, Lega, Alessandro, Lolli, Mauro, Martino, Bruno, Martucci, Matteo, Masciantonio, Giuseppe, Mergè, Matteo, Mese, Marco, Morbidini, Alfredo, Neubüser, Coralie, Nozzoli, Francesco, Nuccilli, Fabrizio, Oliva, Alberto, Osteria, Giuseppe, Palma, Francesco, Palmonari, Federico, Panico, Beatrice, Papini, Emanuele, Parmentier, Alexandra, Perciballi, Stefania, Perfetto, Francesco, Perinelli, Alessio, Picozza, Piergiorgio, Pozzato, Michele, Rebustini, Gianmaria, Recchiuti, Dario, Ricci, Ester, Ricci, Marco, Ricciarini, Sergio B., Russi, Andrea, Sahnoun, Zuleika, Savino, Umberto, Scotti, Valentina, Shen, Xuhui, Sotgiu, Alessandro, Sparvoli, Roberta, Tofani, Silvia, Vertolli, Nello, Vilona, Veronica, Vitale, Vincenzo, Zannoni, Ugo, Zoffoli, Simona, Zuccon, Paolo

    مصطلحات موضوعية: Gamma-ray-burst, atmospheric ionization

    الوصف: Earth's atmosphere, whose ionization stability plays a fundamental role for the evolution and endurance of life, is exposed to the effect of cosmic explosions producing high energy Gamma-ray-bursts. Being able to abruptly increase the atmospheric ionization, they might deplete stratospheric ozone on a global scale. During the last decades, an average of more than one Gamma-ray-burst per day were recorded. Nevertheless, measurable effects on the ionosphere were rarely observed, in any case on its bottom-side (from about 60 km up to about 350 km of altitude). Here, we report evidence of an intense top-side (about 500 km) ionospheric perturbation induced by significant sudden ionospheric disturbance, and a large variation of the ionospheric electric field at 500 km, which are both correlated with the October 9, 2022 Gamma-ray-burst (GRB221009A).Gamma-ray bursts (GRBs) are known to have impact on Earth's lower ionosphere, but GRB impacts on the upper ionosphere was not observed before. Here, the authors show strong electric field variation at 500 km in the ionosphere caused by GRB221009A.

    وصف الملف: STAMPA

    العلاقة: info:eu-repo/semantics/altIdentifier/pmid/37963921; info:eu-repo/semantics/altIdentifier/wos/WOS:001104729800004; volume:14; issue:1; firstpage:1; lastpage:10; numberofpages:10; journal:NATURE COMMUNICATIONS; https://hdl.handle.net/11585/962095Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85176458847; https://www.nature.com/articles/s41467-023-42551-5Test

  3. 3
    دورية أكاديمية
  4. 4
    مؤتمر

    المساهمون: Coyle, Laura E., Perrin, Marshall D., Matsuura, Shuji

    المصدر: Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

  5. 5
    مؤتمر

    المساهمون: Coyle, Laura E., Perrin, Marshall D., Matsuura, Shuji

    المصدر: Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

  6. 6
    دورية أكاديمية
  7. 7
    دورية
  8. 8
    مؤتمر
  9. 9
    دورية
  10. 10
    مؤتمر

    المساهمون: Giulio Avanzini, Emanuele Luigi de Angelis, Fabrizio Giulietti

    وصف الملف: ELETTRONICO

    العلاقة: info:eu-repo/semantics/altIdentifier/isbn/978-0-87703-672-2; ispartofbook:ADVANCES IN THE ASTRONAUTICAL SCIENCES VOLlume 173; UNIVERSITY SATELLITE MISSIONS AND CUBESAT WORKSHOP 2020; firstpage:497; lastpage:515; numberofpages:19; http://hdl.handle.net/11585/804578Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111867460