ORCID Profile
0000-0002-4540-2885
Current Organisations
University of Catania
,
Istituto Nazionale di Fisica Nucleare Sezione di Catania
,
Università degli Studi di Catania
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Publisher: IOP Publishing
Date: 13-11-2013
Publisher: American Geophysical Union (AGU)
Date: 04-2020
DOI: 10.1029/2019EA000582
Abstract: Elves are a class of transient luminous events, with a radial extent typically greater than 250 km, that occur in the lower ionosphere above strong electrical storms. We report the observation of 1,598 elves, from 2014 to 2016, recorded with unprecedented time resolution (100 ns) using the fluorescence detector (FD) of the Pierre Auger Cosmic‐Ray Observatory. The Auger Observatory is located in the Mendoza province of Argentina with a viewing footprint for elve observations of km , reaching areas above the Pacific and Atlantic Oceans, as well as the Córdoba region, which is known for severe convective thunderstorms. Primarily designed for ultrahigh energy cosmic‐ray observations, the Auger FD turns out to be very sensitive to the ultraviolet emission in elves. The detector features modified Schmidt optics with large apertures resulting in a field of view that spans the horizon, and year‐round operation on dark nights with low moonlight background, when the local weather is favorable. The measured light profiles of 18% of the elve events have more than one peak, compatible with intracloud activity. Within the 3‐year s le, 72% of the elves correlate with the far‐field radiation measurements of the World Wide Lightning Location Network. The Auger Observatory plans to continue operations until at least 2025, including elve observations and analysis. To the best of our knowledge, this observatory is the only facility on Earth that measures elves with year‐round operation and full horizon coverage.
Publisher: IOP Publishing
Date: 07-03-2019
Publisher: American Astronomical Society
Date: 02-02-2018
Publisher: Springer Science and Business Media LLC
Date: 10-2013
Publisher: IOP Publishing
Date: 23-06-2016
Publisher: Springer Science and Business Media LLC
Date: 05-2017
Publisher: American Association for the Advancement of Science (AAAS)
Date: 22-09-2017
Abstract: Cosmic rays are high-energy particles arriving from space some have energies far beyond those that human-made particle accelerators can achieve. The sources of higher-energy cosmic rays remain under debate, although we know that lower-energy cosmic rays come from the solar wind. The Pierre Auger Collaboration reports the observation of thousands of cosmic rays with ultrahigh energies of several exa–electron volts (about a Joule per particle), arriving in a slightly dipolar distribution (see the Perspective by Gallagher and Halzen). The direction of the rays indicates that the particles originated in other galaxies and not from nearby sources within our own Milky Way Galaxy. Science , this issue p. 1266 see also p. 1240
Publisher: IOP Publishing
Date: 19-12-2016
Publisher: EDP Sciences
Date: 29-10-2013
Publisher: American Astronomical Society
Date: 13-03-2020
Publisher: IOP Publishing
Date: 16-10-2017
Publisher: Springer Science and Business Media LLC
Date: 02-2014
Publisher: Elsevier BV
Date: 10-2017
Location: Italy
No related grants have been discovered for Domenico Lo Presti.