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Pregled bibliografske jedinice broj: 569923

Flare-generated type II burst without associated coronal mass ejection


Magdalenić, Jasmina; Marque, Christophe; Zhukov, Andrei; Vršnak, Bojan; Veronig, Astrid
Flare-generated type II burst without associated coronal mass ejection // The Astrophysical journal, 746 (2012), 152-159 doi:10.1088/0004-637X/746/2/152 (međunarodna recenzija, članak, znanstveni)


Naslov
Flare-generated type II burst without associated coronal mass ejection

Autori
Magdalenić, Jasmina ; Marque, Christophe ; Zhukov, Andrei ; Vršnak, Bojan ; Veronig, Astrid

Izvornik
The Astrophysical journal (0004-637X) 746 (2012); 152-159

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

Ključne riječi
shock waves – Sun: corona – Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: radio radiation

Sažetak
We present a study of the solar coronal shock wave on 2005 November 14 associated with the GOES M3.9 flare that occurred close to the east limb (S06◦ E60◦). The shock signature, a type II radio burst, had an unusually high starting frequency of about 800 MHz, indicating that the shock was formed at a rather low height. The position of the radio source, the direction of the shock wave propagation, and the coronal electron density were estimated using Nan¸cay Radioheliograph observations and the dynamic spectrum of the Green Bank Solar Radio Burst Spectrometer. The soft X-ray, Hα, and Reuven Ramaty High Energy Solar Spectroscopic Imager observations show that the flare was compact, very impulsive, and of a rather high density and temperature, indicating a strong and impulsive increase of pressure in a small flare loop. The close association of the shock wave initiation with the impulsive energy release suggests that the impulsive increase of the pressure in the flare was the source of the shock wave. This is supported by the fact that, contrary to the majority of events studied previously, no coronal mass ejection was detected in association with the shock wave, although the corresponding flare occurred close to the limb.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
007-0000000-1362 - Eruptivni procesi u Sunčevoj atmosferi (Bojan Vršnak, )

Ustanove
Geodetski fakultet, Zagreb

Profili:

Avatar Url Jasmina Magdalenić (autor)

Avatar Url Bojan Vršnak (autor)

Citiraj ovu publikaciju

Magdalenić, Jasmina; Marque, Christophe; Zhukov, Andrei; Vršnak, Bojan; Veronig, Astrid
Flare-generated type II burst without associated coronal mass ejection // The Astrophysical journal, 746 (2012), 152-159 doi:10.1088/0004-637X/746/2/152 (međunarodna recenzija, članak, znanstveni)
Magdalenić, J., Marque, C., Zhukov, A., Vršnak, B. & Veronig, A. (2012) Flare-generated type II burst without associated coronal mass ejection. The Astrophysical journal, 746, 152-159 doi:10.1088/0004-637X/746/2/152.
@article{article, year = {2012}, pages = {152-159}, DOI = {10.1088/0004-637X/746/2/152}, keywords = {shock waves – Sun: corona – Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: radio radiation}, journal = {The Astrophysical journal}, doi = {10.1088/0004-637X/746/2/152}, volume = {746}, issn = {0004-637X}, title = {Flare-generated type II burst without associated coronal mass ejection}, keyword = {shock waves – Sun: corona – Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: radio radiation} }

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:


  • ABI/INFORM


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