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Pregled bibliografske jedinice broj: 294596

Are There Radio-quiet Solar Flares?


Benz, Arnold; Brajša, Roman; Magdalenić, Jasmina
Are There Radio-quiet Solar Flares? // Solar Physics, 240 (2007), 2; 263-270 (međunarodna recenzija, članak, znanstveni)


Naslov
Are There Radio-quiet Solar Flares?

Autori
Benz, Arnold ; Brajša, Roman ; Magdalenić, Jasmina

Izvornik
Solar Physics (0038-0938) 240 (2007), 2; 263-270

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
solar flares; radio emission

Sažetak
Some 15% of solar flares having a soft X-ray flux above GOES class C5 are reported to lack coherent radio emission in the 100-4000 MHz range (type I-V and decimetric emissions). A detailed study of 29 such events reveals that 22 (76%) of them occurred at a radial distance of more than 800" from the disk center, indicating that radio waves from the limb may be completely absorbed in some flares. The remaining seven events have statistically significant trends to be weak in GOES class and to have a softer non-thermal X-ray spectrum. All of the non-limb flares that were radio-quiet above 100 MHz were accompanied by metric type III emission below 100 MHz. Out of 201 hard X-ray flares, there was no flare except near the limb (R >800") without coherent radio emission in the entire meter and decimeter range. We suggest that flares above GOES class C5 generally emit coherent radio waves when observed radially above the surface.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
007-0000000-1362 - Eruptivni procesi u Sunčevoj atmosferi (Bojan Vršnak, )
007-0000000-1364 - Fizikalni procesi u atmosferama Sunca i zvijezda (Vladimir Ruždjak, )

Ustanove
Geodetski fakultet, Zagreb

Profili:

Avatar Url Roman Brajša (autor)

Avatar Url Jasmina Magdalenić (autor)

Citiraj ovu publikaciju

Benz, Arnold; Brajša, Roman; Magdalenić, Jasmina
Are There Radio-quiet Solar Flares? // Solar Physics, 240 (2007), 2; 263-270 (međunarodna recenzija, članak, znanstveni)
Benz, A., Brajša, R. & Magdalenić, J. (2007) Are There Radio-quiet Solar Flares?. Solar Physics, 240 (2), 263-270.
@article{article, year = {2007}, pages = {263-270}, keywords = {solar flares, radio emission}, journal = {Solar Physics}, volume = {240}, number = {2}, issn = {0038-0938}, title = {Are There Radio-quiet Solar Flares?}, keyword = {solar flares, radio emission} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • The INSPEC Science Abstracts series
  • NASA-ADS