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Pregled bibliografske jedinice broj: 449539

Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares


Temmer, Manuela; Veronig, Astrid; Kontar, Edvard Krucker, Sam; Vršnak, Bojan
Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares // The Astrophysical journal, 712 (2010), 2; 1410-1420 doi:10.1088/0004-637X/712/2/1410 (međunarodna recenzija, članak, znanstveni)


Naslov
Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares

Autori
Temmer, Manuela ; Veronig, Astrid ; Kontar, Edvard Krucker, Sam ; Vršnak, Bojan

Izvornik
The Astrophysical journal (0004-637X) 712 (2010), 2; 1410-1420

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

Ključne riječi
Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: X-rays; gamma rays

Sažetak
Using the potential of two unprecedented missions, Solar Terrestrial Relations Observatory (STEREO) and Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI), we study three well-observed fast coronal mass ejections (CMEs) that occurred close to the limb together with their associated high-energy flare emissions in terms of RHESSI hard X-ray (HXR) spectra and flux evolution. From STEREO/EUVI and STEREO/COR1 data, the full CME kinematics of the impulsive acceleration phase up to ∼4 R is measured with a high time cadence of 2.5 minutes. For deriving CME velocity and acceleration, we apply and test a new algorithm based on regularization methods. The CME maximum acceleration is achieved at heights h  0.4 R, and the peak velocity at h  2.1 R (in one case, as small as 0.5R).We find that the CME acceleration profile and the flare energy release as evidenced in the RHESSI HXR flux evolve in a synchronized manner. These results support the “standard” flare/CME model which is characterized by a feedback relationship between the large-scale CME acceleration process and the energy release in the associated flare.

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 Bojan Vršnak (autor)

Citiraj ovu publikaciju

Temmer, Manuela; Veronig, Astrid; Kontar, Edvard Krucker, Sam; Vršnak, Bojan
Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares // The Astrophysical journal, 712 (2010), 2; 1410-1420 doi:10.1088/0004-637X/712/2/1410 (međunarodna recenzija, članak, znanstveni)
Temmer, M., Veronig, A., Kontar, Edvard Krucker, Sam & Vršnak, B. (2010) Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares. The Astrophysical journal, 712 (2), 1410-1420 doi:10.1088/0004-637X/712/2/1410.
@article{article, year = {2010}, pages = {1410-1420}, DOI = {10.1088/0004-637X/712/2/1410}, keywords = {Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: X-rays, gamma rays}, journal = {The Astrophysical journal}, doi = {10.1088/0004-637X/712/2/1410}, volume = {712}, number = {2}, issn = {0004-637X}, title = {Combined stereo/rhessi study of coronal mass ejection acceleration and particle acceleration in solar flares}, keyword = {Sun: coronal mass ejections (CMEs) – Sun: flares – Sun: X-rays, gamma rays} }

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:


  • NASA ADS


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