crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 74156

Časopis

Autori: Andreić, Željko; Vinković, Dejan; Garaj, Slaven; Zgrablić, Goran; Kovačić, Damir; Gradečak, Silvija; Biliškov, Nikola; Grbac, Neven
Naslov: Instrumental Detection of Meteor-produced VLF Electromagnetic Radiation
Izvornik: The INSPIRE Journal (1347-0957) 9 (2001), 1; 27-34
Vrsta rada: članak
Ključne riječi: meteors; Leonids; VLF; ionosphere; electrophonic sounds
Sažetak:
In November 1998 a Croatian Physical Society expedition to Mongolia was undertaken. The goal was to try to record VLF emissions and electrophonic sounds (if any) of Leonids during the anticipated Leonid storm. We obtained some instrumental recordings of very-low-frequency electromagnetic radiation (VLF) which we attribute to meteor. The detected VLF signals were coincident with the light maximum of meteors in question, and the meteors involved in these events were quite small (-5 mV and -8 mV), which implies much lower brightness limit (about -5 mV) for the VLF producing meteors then previously suggested. It is, however, not excluded that this limit depends on weather conditions. In the best recording (-8 m meteor), a 0.7 s long sequence of 8 short VLF impulses with amplitude of about 10-2 V/m, starting 0.1 s before the visual maximum of the meteor, was registered. The amount of gathered data is huge, and we are still at the analysis of it.
Projekt / tema: 00980302
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL cjelovitog teksta:
Google Scholar: Instrumental Detection of Meteor-produced VLF Electromagnetic Radiation
Napomene:
INSPIRE = Interactive NASA Space Physics Ionosphere Radio Experiment



  Verzija za printanje   za tiskati


upomoc
foot_4