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Pregled bibliografske jedinice broj: 157572

The CME-flare relationship: Are there really two types of CMEs?


Vršnak, Bojan; Sudar, Davor; Ruždjak, Domagoj
The CME-flare relationship: Are there really two types of CMEs? // Astronomy and astrophysics, 435 (2005), 3; 1149-1157 (međunarodna recenzija, članak, znanstveni)


Naslov
The CME-flare relationship: Are there really two types of CMEs?

Autori
Vršnak, Bojan ; Sudar, Davor ; Ruždjak, Domagoj

Izvornik
Astronomy and astrophysics (0004-6361) 435 (2005), 3; 1149-1157

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

Ključne riječi
Sun: CMEs; Sun: flares; Sun: prominences

Sažetak
We present a statistical analysis of 545 flare-associated CMEs and 104 non-flare CMEs observed in the heliocentric distance range 2--30 solar radii. We found that both data sets show quite similar characteristics, contradicting the concept of two distinct (flare/non-flare) types of CMEs. In both samples there is a significant fraction of CMEs showing a considerable acceleration or deceleration and both samples include comparable ratio of fast and slow CMEs. However, CMEs associated with major flares are on average faster and broader than non-flare CMEs and small-flare CMEs. In fact, there is a well-defined correlation between the CME speed and the importance of the associated flare. In this respect, the non-flare CMEs show characteristics similar to CMEs associated with flares of soft X-ray class B and C. Furthermore, we inferred that CMEs whose source region cannot be identified with either flares or eruptive prominences are on average slowest. The results indicate that the magnetic reconnection taking place in the current sheet beneath the CME influences significantly the CME dynamics.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0007016
0007017

Ustanove
Geodetski fakultet, Zagreb

Profili:

Avatar Url Domagoj Ruždjak (autor)

Avatar Url Davor Sudar (autor)

Avatar Url Bojan Vršnak (autor)

Citiraj ovu publikaciju

Vršnak, Bojan; Sudar, Davor; Ruždjak, Domagoj
The CME-flare relationship: Are there really two types of CMEs? // Astronomy and astrophysics, 435 (2005), 3; 1149-1157 (međunarodna recenzija, članak, znanstveni)
Vršnak, B., Sudar, D. & Ruždjak, D. (2005) The CME-flare relationship: Are there really two types of CMEs?. Astronomy and astrophysics, 435 (3), 1149-1157.
@article{article, year = {2005}, pages = {1149-1157}, keywords = {Sun: CMEs, Sun: flares, Sun: prominences}, journal = {Astronomy and astrophysics}, volume = {435}, number = {3}, issn = {0004-6361}, title = {The CME-flare relationship: Are there really two types of CMEs?}, keyword = {Sun: CMEs, Sun: flares, Sun: prominences} }

Časopis indeksira:


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


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