Detection of terrestrial gamma ray flashes up to 40 MeV by the AGILE satellite

M. Marisaldi, F. Fuschino, C. Labanti, M. Galli, F. Longo, E. Del Monte, G. Barbiellini, M. Tavani, A. Giuliani, E. Moretti, S. Vercellone, E. Costa, S. Cutini, I. Donnarumma, Y. Evangelista, M. Feroci, I. Lapshov, F. Lazzarotto, P. Lipari, S. MereghettiL. Pacciani, M. Rapisarda, P. Soffitta, M. Trifoglio, A. Argan, F. Boffelli, A. Bulgarelli, P. Caraveo, P.W. Cattaneo, A. Chen, V. Cocco, F. D'Ammando, G. De Paris, G. Di Cocco, G. Di Persio, A. Ferrari, M. Fiorini, T. Froysland, F. Gianotti, A. Morselli, A. Pellizzoni, F. Perotti, P. Picozza, G. Piano, M. Pilia, M. Prest, G. Pucella, A. Rappoldi, A. Rubini, S. Sabatini, E. Striani, A. Trois, E. Vallazza, V. Vittorini, A. Zambra, D. Zanello, L.A. Antonelli, S. Colafrancesco, D. Gasparrini, P. Giommi, C. Pittori, B. Preger, P. Santolamazza, F. Verrecchia, L. Salottis

Research output: Contribution to journalArticle

133 Citations (Scopus)

Abstract

We report the detection by the Astrorivelatore Gamma a Immagini Leggero (AGILE) satellite of terrestrial gamma ray flashes (TGFs) obtained with the minicalorimeter (MCAL) detector operating in the energy range 0.3-100 MeV. We select events typically lasting a few milliseconds with spectral and directional selections consistent with the TGF characteristics previously reported by other space missions. During the period 1 June 2008 to 31 March 2009 we detect 34 high-confidence events showing millisecond durations and a geographical distribution peaked over continental Africa and Southeast Asia. For the first time, AGILE-MCAL detects photons associated with TGF events up to 40 MeV. We determine the cumulative spectral properties of the spectrum in the range 0.5-40 MeV, which can be effectively described by a Bremsstrahlung spectrum. We find that both the TGF cumulative spectral properties and their geographical distribution are in good agreement with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) results.
Original languageEnglish
Article numberA00E13
Pages (from-to)-
JournalJournal of Geophysical Research
Volume115
Issue number3
DOIs
Publication statusPublished - 2010
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Marisaldi, M., Fuschino, F., Labanti, C., Galli, M., Longo, F., Del Monte, E., Barbiellini, G., Tavani, M., Giuliani, A., Moretti, E., Vercellone, S., Costa, E., Cutini, S., Donnarumma, I., Evangelista, Y., Feroci, M., Lapshov, I., Lazzarotto, F., Lipari, P., ... Salottis, L. (2010). Detection of terrestrial gamma ray flashes up to 40 MeV by the AGILE satellite. Journal of Geophysical Research, 115(3), -. [A00E13]. https://doi.org/10.1029/2009JA014502