Journal ArticleDOI
The SOHO/LASCO CME Catalog
Nat Gopalswamy,Seiji Yashiro,G. Michalek,Guillermo Stenborg,Angelos Vourlidas,S. Freeland,R. A. Howard +6 more
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TLDR
The SOHO/LASCO CME catalog as mentioned in this paper is a data base for the analysis of coronal mass ejections (CMEs) in the solar corona.Abstract:
Coronal mass ejections (CMEs) are routinely identified in the images of the solar corona obtained by the Solar and Heliospheric Observatory (SOHO) mission’s Large Angle and Spectrometric Coronagraph (LASCO) since 1996. The identified CMEs are measured and their basic attributes are cataloged in a data base known as the SOHO/LASCO CME Catalog. The Catalog also contains digital data, movies, and plots for each CME, so detailed scientific investigations can be performed on CMEs and the related phenomena such as flares, radio bursts, solar energetic particle events, and geomagnetic storms. This paper provides a brief description of the Catalog and summarizes the statistical properties of CMEs obtained using the Catalog. Data products relevant to space weather research and some CME issues that can be addressed using the Catalog are discussed. The URL of the Catalog is: http://cdaw.gsfc.nasa.gov/CME_list.read more
Citations
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Journal ArticleDOI
Time Distributions of Large and Small Sunspot Groups Over Four Solar Cycles
Ali Kilcik,Vasyl Yurchyshyn,Valentyna Abramenko,Philip R. Goode,Atila Özgüç,Jean-Pierre Rozelot,Wenda Cao +6 more
TL;DR: In this paper, the authors analyzed solar activity by focusing on time variations of the number of sunspot groups (SGs) as a function of their modified Zurich class and found that the large SG numbers are more likely to shed light on solar activity and its geophysical implications.
Journal ArticleDOI
The heliocentric distance where the deflections and rotations of solar coronal mass ejections occur
Christina Kay,M. Opher +1 more
TL;DR: In this paper, the authors quantify the distance at which the CME deflection is "determined", which is defined as the distance after which the background solar wind has negligible influence on the total deflection.
Journal ArticleDOI
A New Tool for CME Arrival Time Prediction using Machine Learning Algorithms: CAT-PUMA
TL;DR: A new approach for partial-/full-halo CME Arrival Time Prediction Using Machine learning Algorithms (CAT-PUMA), which is accurate and fast and can be carried out very fast, i.e. within minutes after providing the necessary input parameters of a CME.
Journal ArticleDOI
Statistical Analysis of Torus and Kink Instabilities in Solar Eruptions
TL;DR: In this paper, the decay index of the potential strapping field above the magnetic flux rope (MFR) in and around the flaring magnetic polarity inversion line (a TI parameter), and the unsigned twist number $T_w$ of the nonlinear force-free (NLFF) field lines forming the same MFR (a KI parameter) were investigated.
Journal ArticleDOI
Relationship of EUV Irradiance Coronal Dimming Slope and Depth to Coronal Mass Ejection Speed and Mass
James Mason,Thomas N. Woods,David F. Webb,Barbara J. Thompson,Robin C. Colaninno,Angelos Vourlidas +5 more
TL;DR: In this article, the authors used a combination of wavelengths to estimate CME mass and speed using near-real-time irradiance dimming measurements and compared the results with corresponding CME parameters.
References
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Journal ArticleDOI
The Large Angle Spectroscopic Coronagraph (LASCO): Visible light coronal imaging and spectroscopy
G. E. Brueckner,Russell A. Howard,M. J. Koomen,Clarence M. Korendyke,D. J. Michels,Dennis G. Socker,Philippe Lamy,Antoine Llebaria,J. Maucherat,Rainer Schwenn,G. M. Simmett hand D. K. Bedford,C. J. Eyles +11 more
TL;DR: The Large Angle Spectroscopic Coronagraph (LASCO) is a triple coronagraph being jointly developed for the Solar and Heliospheric Observatory (SOHO) mission as discussed by the authors.
Journal ArticleDOI
EIT: Extreme-UltraViolet Imaging Telescope for the SOHO Mission
Jean-Pierre Delaboudiniere,G. E. Artzner,Jacqueline Brunaud,A. H. Gabriel,Jean-François Hochedez,F. Millier,X. Y. Song,B. Au,Kenneth P. Dere,Russell A. Howard,R. W. Kreplin,D. J. Michels,John D. Moses,Jean-Marc Defise,Claude Jamar,Pierre Rochus,J. P. Chauvineau,J. P. Marioge,R. C. Catura,James R. Lemen,L. Shing,Robert A. Stern,Joseph B. Gurman,Werner M. Neupert,A. Maucherat,Frédéric Clette,P. Cugnon,E. L. Van Dessel +27 more
TL;DR: The Extreme-ultraviolet Imaging Telescope (EIT) as discussed by the authors provides wide-field images of the corona and transition region on the solar disc and up to 1.5 R⊙ above the solar limb.
Book ChapterDOI
The Large Angle Spectroscopic Coronagraph (LASCO)
Guenter E. Brueckner,R. A. Howard,M. J. Koomen,Clarence M. Korendyke,D. J. Michels,John D. Moses,Dennis G. Socker,Kenneth P. Dere,Philippe Lamy,Antoine Llebaria,M. V. Bout,Rainer Schwenn,G. M. Simnett,D. K. Bedford,C. J. Eyles +14 more
TL;DR: The Large Angle Spectroscopic Coronagraph (LASCO) is a three coronagraph package which has been jointly developed for the Solar and Heliospheric Observatory (SOHO) mission by the Naval Research Laboratory (USA), the Laboratoire d'Astronomie Spatiale (France), the Max-Planck-Institut fur Aeronomie (Germany), and the University of Birmingham (UK) as discussed by the authors.
Journal ArticleDOI
Waves: The Radio and Plasma Wave Investigation on the Wind Spacecraft
Jean-Louis Bougeret,M. L. Kaiser,Paul J. Kellogg,R. Manning,K. Goetz,S. J. Monson,N. Monge,L. Friel,C. A. Meetre,C. Perche,L. Sitruk,Sang Hoang +11 more
TL;DR: The WAVES investigation on the WIND spacecraft will provide comprehensive measurements of the radio and plasma wave phenomena which occur in Geospace as mentioned in this paper, in coordination with the other onboard plasma, energetic particles, and field measurements will help us understand the kinetic processes that are important in the solar wind and in key boundary regions of the Geospace.
Journal ArticleDOI
Interplanetary acceleration of coronal mass ejections
Nat Gopalswamy,Alejandro Lara,R. P. Lepping,M. L. Kaiser,D. Berdichevsky,D. Berdichevsky,O. C. St. Cyr +6 more
TL;DR: In this article, an empirical model was proposed to predict the arrival of CMEs at 1 AU, based on the relation between the acceleration and initial speed of the CME.
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