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Pregled bibliografske jedinice broj: 574957

Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event


Temmer, Manuela; Vršnak, Bojan; Rollett, Tanja; Bein, Bianca; de Koning, Curt A.; Liu, Ying; Bosman, Eckhard; Davies, Jackie A.; Mostl, Christian; Žic, Tomislav et al.
Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event // The Astrophysical journal, 749 (2012), 1; 57-67 doi:10.1088/0004-637X/749/1/57 (međunarodna recenzija, članak, znanstveni)


Naslov
Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event

Autori
Temmer, Manuela ; Vršnak, Bojan ; Rollett, Tanja ; Bein, Bianca ; de Koning, Curt A. ; Liu, Ying ; Bosman, Eckhard ; Davies, Jackie A. ; Mostl, Christian ; Žic, Tomislav ; Veronig, Astrid M. ; Bothmer, Volker ; Harrison, Richard ; Nitta, Nariaki ; Bisi, Mario ; Flor, Olga ; Eastwood, Jonathan ; OdstrČil, Dušan ; Forsyth, Robert

Izvornik
The Astrophysical journal (0004-637X) 749 (2012), 1; 57-67

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

Ključne riječi
Sun: corona – Sun: coronal mass ejections (CMEs)

Sažetak
We study the interaction of two successive coronal mass ejections (CMEs) during the 2010 August 1 events using STEREO/SECCHI COR and heliospheric imager (HI) data. We obtain the direction of motion for both CMEs by applying several independent reconstruction methods and find that the CMEs head in similar directions. This provides evidence that a full interaction takes place between the two CMEs that can be observed in the HI1 field of view. The full de-projected kinematics of the faster CME from Sun to Earth is derived by combining remote observations with in situ measurements of the CME at 1 AU. The speed profile of the faster CME (CME2 ; ∼1200 km s−1) shows a strong deceleration over the distance range at which it reaches the slower, preceding CME (CME1 ; ∼700 km s−1). By applying a drag-based model we are able to reproduce the kinematical profile of CME2, suggesting that CME1 represents a magnetohydrodynamic obstacle for CME2 and that, after the interaction, the merged entity propagates as a single structure in an ambient flow of speed and density typical for quiet solar wind conditions. Observational facts show that magnetic forces may contribute to the enhanced deceleration of CME2. We speculate that the increase in magnetic tension and pressure, when CME2 bends and compresses the magnetic field lines of CME1, increases the efficiency of drag.

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)

Avatar Url Tomislav Žic (autor)

Citiraj ovu publikaciju

Temmer, Manuela; Vršnak, Bojan; Rollett, Tanja; Bein, Bianca; de Koning, Curt A.; Liu, Ying; Bosman, Eckhard; Davies, Jackie A.; Mostl, Christian; Žic, Tomislav et al.
Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event // The Astrophysical journal, 749 (2012), 1; 57-67 doi:10.1088/0004-637X/749/1/57 (međunarodna recenzija, članak, znanstveni)
Temmer, M., Vršnak, B., Rollett, T., Bein, B., de Koning, C., Liu, Y., Bosman, E., Davies, J., Mostl, C. & Žic, T. (2012) Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event. The Astrophysical journal, 749 (1), 57-67 doi:10.1088/0004-637X/749/1/57.
@article{article, year = {2012}, pages = {57-67}, DOI = {10.1088/0004-637X/749/1/57}, keywords = {Sun: corona – Sun: coronal mass ejections (CMEs)}, journal = {The Astrophysical journal}, doi = {10.1088/0004-637X/749/1/57}, volume = {749}, number = {1}, issn = {0004-637X}, title = {Characteristics of kinematics of a coronal mass ejection during the 2010 august 1 CME–CME interaction event}, keyword = {Sun: corona – Sun: coronal mass ejections (CMEs)} }

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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