Results 41 to 50 of about 16,880 (179)

Analysis of a long-duration AR throughout five solar rotations: Magnetic properties and ejective events [PDF]

, 2019
Coronal mass ejections (CMEs), which are among the most magnificent solar eruptions, are a major driver of space weather and can thus affect diverse human technologies.
Cremades Fernandez, Maria Hebe, Iglesias, Francisco Andres, Lopez Fuentes, Marcelo Claudio, Lopez Fuentes, Marcelo Claudio, Mandrini, Cristina Hemilse, Merenda, Luciano A., Ugarte Urra, Ignacio   +6 more
core   +1 more source

Coronal Mass Ejection–Associated Coronal Dimmings

The Astrophysical Journal, 2008
We report on a statistical analysis of 96 CME-associated EUV coronal dimmings between 1998 and 2000. We investigate the size and location of the events and characterize how these events evolve with time. The durations typically range from 3 to 12 hr. The dimmings appear most frequently within the belt of active regions (20°-50° latitude).
A. A. Reinard, D. A. Biesecker
openaire   +1 more source

The Effect of Helio-Geomagnetic Activity in the Geo-Environment and by Extension to Human Health

Atmosphere
Solar activity encompasses various phenomena within the solar atmosphere, notably including eruptive events like solar flares and coronal mass ejections (CMEs) [...]
Panagiota Preka-Papadema, Chris G. Tzanis   +1 more
doaj   +1 more source

Investigating Remote-Sensing Techniques to Reveal Stealth Coronal Mass Ejections

Frontiers in Astronomy and Space Sciences, 2021
Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in which a CME that is well observed in coronagraph data is missing a clear ...
Erika Palmerio, Erika Palmerio, Nariaki V. Nitta, Tamitha Mulligan, Marilena Mierla, Marilena Mierla, Jennifer O’Kane, Ian G. Richardson, Ian G. Richardson, Suvadip Sinha, Nandita Srivastava, Stephanie L. Yardley, Andrei N. Zhukov, Andrei N. Zhukov   +13 more
doaj   +1 more source

The birth of a coronal mass ejection [PDF]

Science Advances, 2019
Tiny plasmoids merge on the Sun and snowball into a stellar-sized eruption.
Tingyu Gou, Rui Liu, Bernhard Kliem, Yuming Wang, Astrid M. Veronig   +4 more
openaire   +4 more sources

Narrow Coronal Mass Ejections

The Astrophysical Journal, 2001
Narrow coronal mass ejections (CMEs), defined arbitrarily as events whose apparent angular width is 15° or less, are a small subset of all CMEs. Little is known of the properties of these events and whether these properties differ from those of the larger, more typical CMEs. We have included in this study 15 narrow CMEs observed in the period from 1999
Holly R. Gilbert, Elizabeth C. Serex, Thomas E. Holzer, R. M. MacQueen, Patrick S. McIntosh   +4 more
openaire   +1 more source

IMPULSIVE ACCELERATION OF CORONAL MASS EJECTIONS. I. STATISTICS AND CORONAL MASS EJECTION SOURCE REGION CHARACTERISTICS [PDF]

The Astrophysical Journal, 2011
We use high time cadence images acquired by the STEREO EUVI and COR instruments to study the evolution of coronal mass ejections (CMEs) from their initiation through impulsive acceleration to the propagation phase. For a set of 95 CMEs we derived detailed height, velocity, and acceleration profiles and statistically analyzed characteristic CME ...
Bein, Bianka, Berkebile-Stoiser, Sigrid, Veronig, Astrid, Temmer, Manuela, Muhr, Nicole, Kienreich, Ines, Utz, Dominik, Vršnak, Bojan   +7 more
openaire   +1 more source

Investigating the Magnetic Structure of Interplanetary Coronal Mass Ejections Using Simultaneous Multispacecraft In Situ Measurements

The Astrophysical Journal, 2023
In situ measurements from spacecraft typically provide a time series at a single location through coronal mass ejections (CMEs), and they have been one of the main methods to investigate CMEs.
F. Regnault, N. Al-Haddad, N. Lugaz, C. J. Farrugia, W. Yu, E. E. Davies, A. B. Galvin, B. Zhuang   +7 more
doaj   +1 more source

Observations of Coronal Mass Ejections with the Coronal Multichannel Polarimeter

, 2013
The Coronal Multichannel Polarimeter (CoMP) measures not only the polarization of coronal emission, but also the full radiance profiles of coronal emission lines.
B. O’Dwyer, B.C. Low, C.E. DeForest, D.F. Elmore, D.J. Schmit, D.M. Hassler, E. Landi, F. Chen, G.E. Brueckner, H. Peter, H. Tian, H. Tian, H. Tian, J. Lin, J. Zhang, J. Zhang, J.B. Dove, J.L. Culhane, J.L. Kohl, J.R. Lemen, J.T. Gosling, L.K. Harra, M. Jin, M. Mierla, M. Temmer, M. Zhang, M.J. Aschwanden, M.J. Reiner, N. Gopalswamy, P.F. Chen, P.M. Edwin, R. Schwenn, R.A. Harrison, R.S. White, S. Giordano, S. Patsourakos, S. Tomczyk, S. Tomczyk, S. Tomczyk, S.E. Gibson, S.P. Plunkett, S.W. Feng, S.W. McIntosh, S.W. McIntosh, T. Van Doorsselaere, T.A. Howard, T.J. Wang, V.M. Nakariakov, X. Cheng, Y. Chen, Y. Liu, Y. Shen, Y. Su, Y.K. Ko, Y.M. Wang   +54 more
core   +1 more source

Rotation of a Stealth CME on 2012 October 5 Observed in the Inner Heliosphere

The Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are subject to changes in their direction of propagation, tilt, and other properties. This is because CMEs interact with the ambient solar wind and other large-scale magnetic field structures.
Sandeep Kumar, Dinesha V. Hegde, Nandita Srivastava, Nikolai V. Pogorelov, Nat Gopalswamy, Seiji Yashiro   +5 more
doaj   +1 more source