On the initiation of Coronal Mass Ejections observed by STEREO/EUVI

P. Syntelis; K. Tsinganos; A. Vourlidas; C. Gontikakis

On the initiation of Coronal Mass Ejections observed by STEREO/EUVI

P. Syntelis, K. Tsinganos, A. Vourlidas, C. Gontikakis

Applied Mathematics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study examines different stages of a Coronal Mass Ejection's (CME) initiation in NOAA Active Region (AR) 10980, observed on January 2, 2008 by STEREO's Extreme UltraViolet Imager (EUVI). We identify a first phase consisting of an upward motion, which at 1.58R? reaches the velocity of 70 (4) km/s. Those measurements are extrapolated to later time frames to examine whether this initial acceleration drives the CME's propagation later on. We also identify an ascending new flux-rope beneath the CME. During the CME's rise, there are indications that some adjacent loops incline to the main CME body. At the later phase of the initiation, some moving blob-like structures appear along the CME flanks. Propagation speeds of these blobs are measured. These blobs could be indications that a siphon flow exists along the CME.

Original language	English
Title of host publication	10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Iossif Papadakis and Anastasios Anastasiadis
Pages	14-14
Publication status	Published - 1 Jan 2012

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Syntelis, P., Tsinganos, K., Vourlidas, A., & Gontikakis, C. (2012). On the initiation of Coronal Mass Ejections observed by STEREO/EUVI. In 10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Iossif Papadakis and Anastasios Anastasiadis (pp. 14-14) http://adsabs.harvard.edu/abs/2012hell.confR..14S

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title = "On the initiation of Coronal Mass Ejections observed by STEREO/EUVI",

abstract = "This study examines different stages of a Coronal Mass Ejection's (CME) initiation in NOAA Active Region (AR) 10980, observed on January 2, 2008 by STEREO's Extreme UltraViolet Imager (EUVI). We identify a first phase consisting of an upward motion, which at 1.58R? reaches the velocity of 70 (4) km/s. Those measurements are extrapolated to later time frames to examine whether this initial acceleration drives the CME's propagation later on. We also identify an ascending new flux-rope beneath the CME. During the CME's rise, there are indications that some adjacent loops incline to the main CME body. At the later phase of the initiation, some moving blob-like structures appear along the CME flanks. Propagation speeds of these blobs are measured. These blobs could be indications that a siphon flow exists along the CME.",

author = "P. Syntelis and K. Tsinganos and A. Vourlidas and C. Gontikakis",

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On the initiation of Coronal Mass Ejections observed by STEREO/EUVI. / Syntelis, P.; Tsinganos, K.; Vourlidas, A. et al.
10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Iossif Papadakis and Anastasios Anastasiadis. 2012. p. 14-14.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - On the initiation of Coronal Mass Ejections observed by STEREO/EUVI

AU - Syntelis, P.

AU - Tsinganos, K.

AU - Vourlidas, A.

AU - Gontikakis, C.

PY - 2012/1/1

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N2 - This study examines different stages of a Coronal Mass Ejection's (CME) initiation in NOAA Active Region (AR) 10980, observed on January 2, 2008 by STEREO's Extreme UltraViolet Imager (EUVI). We identify a first phase consisting of an upward motion, which at 1.58R? reaches the velocity of 70 (4) km/s. Those measurements are extrapolated to later time frames to examine whether this initial acceleration drives the CME's propagation later on. We also identify an ascending new flux-rope beneath the CME. During the CME's rise, there are indications that some adjacent loops incline to the main CME body. At the later phase of the initiation, some moving blob-like structures appear along the CME flanks. Propagation speeds of these blobs are measured. These blobs could be indications that a siphon flow exists along the CME.

AB - This study examines different stages of a Coronal Mass Ejection's (CME) initiation in NOAA Active Region (AR) 10980, observed on January 2, 2008 by STEREO's Extreme UltraViolet Imager (EUVI). We identify a first phase consisting of an upward motion, which at 1.58R? reaches the velocity of 70 (4) km/s. Those measurements are extrapolated to later time frames to examine whether this initial acceleration drives the CME's propagation later on. We also identify an ascending new flux-rope beneath the CME. During the CME's rise, there are indications that some adjacent loops incline to the main CME body. At the later phase of the initiation, some moving blob-like structures appear along the CME flanks. Propagation speeds of these blobs are measured. These blobs could be indications that a siphon flow exists along the CME.

M3 - Conference contribution

SP - 14

EP - 14

BT - 10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Iossif Papadakis and Anastasios Anastasiadis

ER -

On the initiation of Coronal Mass Ejections observed by STEREO/EUVI

Abstract

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