Results 81 to 90 of about 16,880 (179)

Understanding the Origins of Problem Geomagnetic Storms Associated with "Stealth" Coronal Mass Ejections. [PDF]

Space Sci Rev, 2021
Nitta NV, Mulligan T, Kilpua EKJ, Lynch BJ, Mierla M, O'Kane J, Pagano P, Palmerio E, Pomoell J, Richardson IR, Rodriguez L, Rouillard AP, Sinha S, Srivastava N, Talpeanu DC, Yardley SL, Zhukov AN.   +16 more
europepmc   +1 more source

Automated Detection of Coronal Mass Ejections with Few-shot Learning

The Astrophysical Journal Supplement Series
Coronal mass ejections (CMEs) are a primary driver of severe space weather impacts, yet accurate delineation of CME structure in coronagraph images remains challenging.
Xin Liu, Jiajia Liu, Shuhua Song, Ye Jiang, Xin Huang, Zhanpeng Xu, Robertus Erdélyi, Yimin Wang   +7 more
doaj   +1 more source

Two classes of solar energetic particle events associated with impulsive and long duration soft X-ray flares [PDF]

Solar energetic particle events observed in space have different properties depending on the class of associated flare. Impulsive flares, which occur low in the corona in regions of high energy density, are associated with particle events which are ...
Cane, H. V., Mcguire, R. E., Vonrosenvinge, T. T.   +2 more
core   +1 more source

Understanding the Evolution of the Three-part Structure of a Coronal Mass Ejection Using Multiviewpoint Observations

The Astrophysical Journal
The three-part structure (bright front, dark cavity, and bright core) of coronal mass ejections (CMEs) in white-light (WL) coronagraphic images has been studied for decades.
Bin Zhuang, Noé Lugaz, Manuela Temmer, Tingyu Gou, Carlos R. Braga, Joan Burkepile   +5 more
doaj   +1 more source

Solar origins of coronal mass ejections [PDF]

The large scale properties of coronal mass ejections (CMEs), such as morphology, leading edge speed, and angular width and position, have been cataloged for many events observed with coronagraphs on the Skylab, P-78, and SMM spacecraft.
Kahler, Stephen
core   +1 more source

Speeds and arrival times of solar transients approximated by self-similar expanding circular fronts

, 2012
The NASA STEREO mission opened up the possibility to forecast the arrival times, speeds and directions of solar transients from outside the Sun-Earth line.
A. Thernisien, A.P. Rouillard, A.P. Rouillard, B. Vršnak, B. Vršnak, B.E. Wood, C. Möstl, C. Möstl, C. Möstl, C. Möstl, C.A. de Koning, C.J. Davis, C.J. Davis, C.J. Eyles, C.J. Eyles, E.K.J. Kilpua, G. Siscoe, I.G. Richardson, I.G. Richardson, J. A. Davies, J.A. Davies, J.P. Byrne, L. Rodriguez, M. Mierla, M. Temmer, M.L. Kaiser, N. Gopalswamy, N. Gopalswamy, N. Lugaz, N. Lugaz, N. Lugaz, N. Lugaz, N.P. Savani, N.P. Savani, N.P. Savani, N.R. Sheeley, R. Schwenn, R.K. Burton, S. Yashiro, S.A. Maloney, S.J. Tappin, S.W. Kahler, T.A. Howard, Y. Liu, Y. Liu, Y. Liu   +45 more
core   +1 more source

Understanding Interplanetary Coronal Mass Ejection Signatures

, 2006
While interplanetary coronal mass ejections (ICMEs) are understood to be the heliospheric counterparts of CMEs, with signatures undeniably linked to the CME process, the variability of these signatures and questions about mapping to observed CME features raise issues that remain on the cutting edge of ICME research.
Wimmer-Schweingruber, R.F., Crooker, N.U., Balogh, A., Bothmer, V., Forsyth, R.J., Gazis, P., Gosling, J.T., Horbury, T., Kilchenmann, A., Richardson, I.G., Richardson, J.D., Riley, P., Rodriguez, L., von Steiger, R., Wurz, Peter, Zurbuchen, T.H.   +15 more
openaire   +3 more sources

Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963–2011)

Journal of Space Weather and Space Climate, 2012
In past studies, we classified the near-Earth solar wind into three basic flow types based on inspection of solar wind plasma and magnetic field parameters in the OMNI database and additional data (e.g., geomagnetic indices, energetic particle, and ...
Richardson Ian G., Cane Hilary V.
doaj   +1 more source

Slow shocks in coronal mass ejections [PDF]

The possibility that slow-mode shock compression may produce at least some of the increased brightness observed at the leading edge of coronal mass ejections is investigated.
Steinolfson, R. S.
core   +1 more source

Solar flares with and without SOHO/LASCO coronal mass ejections and type II shocks

, 2010
We analyse of a set of radio rich (accompanied by type IV or II bursts) solar flares and their association with SOHO/LASCO Coronal Mass Ejections in the period 1998 2000. The intensity, impulsiveness and energetics of these events are investigated.
A. Hillaris, A. Kontogeorgos, Andrews, C. Alissandrakis, C. Caroubalos, C. Vassiliou, Caroubalos, Classen, E. Mitsakou, Falconer, G. Dumas, Garcia, Harra, Harrison, J. Polygiannakis, J.-L. Bougeret, Kahler, Kay, Magdalenic, Moon, Nindos, P. Preka-Papadema, P. Tsitsipis, Pearson, Sheeley, V. Petousis, Venkatakrishnan, Vrsnak, Vrsnak, X. Moussas   +29 more
core   +1 more source