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CHAIN RECONNECTIONS OBSERVED IN SYMPATHETIC ERUPTIONS
Joshi, Navin Chandra,Schmieder, Brigitte,Magara, Tetsuya,Guo, Yang,Aulanier, Guillaume American Astronomical Society 2016 The Astrophysical journal Vol.820 No.2
<P>The nature of various plausible causal links between sympathetic events is still a controversial issue. In this work, we present multiwavelength observations of sympathetic eruptions, associated flares, and coronal mass ejections (CMEs) occurring on 2013 November 17 in two close active regions. Two filaments, i.e., F1 and F2, are observed in between the active regions. Successive magnetic reconnections, caused for different reasons (flux cancellation, shear, and expansion) have been identified during the whole event. The first reconnection occurred during the first eruption via flux cancellation between the sheared arcades overlying filament F2, creating a flux rope and leading to the first double-ribbon solar flare. During this phase, we observed the eruption of overlying arcades and coronal loops, which leads to the first CME. The second reconnection is believed to occur between the expanding flux rope of F2 and the overlying arcades of filament F1. We suggest that this reconnection destabilized the equilibrium of filament F1, which further facilitated its eruption. The third stage of reconnection occurred in the wake of the erupting filament F1 between the legs of the overlying arcades. This may create a flux rope and the second double-ribbon flare and a second CME. The fourth reconnection was between the expanding arcades of the erupting filament F1 and the nearby ambient field, which produced the bi-directional plasma flows both upward and downward. Observations and a nonlinear force-free field extrapolation confirm the possibility of reconnection and the causal link between the magnetic systems.</P>
Siddhiq Amarullah Ramadhani,Riandhita Eri Werdani,Fitri Aprilianty,Nurlia Balqish,Fitria Insi Aulani,Mustika Sufiati Purwanegara 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.11
Saung Angklung Udjo (SAU) is recognized as a cultural tourism destination in Indonesia. The aim of this paper is to study the consumer personal value toward SAU. This research reported that consumers perceived angklung as an unique and attractive musical instrument and felt very satisfied to performance in SAU.
Siddhiq Amarullah Ramadhani,Riandhita Eri Werdani,Fitri Aprilianty,Nurlia Balqish,Fitria Insi Aulani,Mustika Sufiati Purwanegara 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7
Saung Angklung Udjo (SAU) is recognized as a cultural tourism destination in Indonesia. The aim of this paper is to study the consumer personal value toward SAU. This research reported that consumers perceived angklung as an unique and attractive musical instrument and felt very satisfied to performance in SAU.