M
M. J. Koomen
Researcher at United States Naval Research Laboratory
Publications - 69
Citations - 7955
M. J. Koomen is an academic researcher from United States Naval Research Laboratory. The author has contributed to research in topics: Coronal mass ejection & Corona. The author has an hindex of 27, co-authored 69 publications receiving 7529 citations.
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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.
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
Measurements of Flow Speeds in the Corona Between 2 and 30 R
N. R. Sheeley,Y.-M. Wang,Scott H. Hawley,Scott H. Hawley,Guenter E. Brueckner,Kenneth P. Dere,Russell A. Howard,M. J. Koomen,Clarence M. Korendyke,D. J. Michels,S. E. Paswaters,Dennis G. Socker,O. C. St. Cyr,Dennis Wang,Philippe Lamy,A. Llebaria,Rainer Schwenn,G. M. Simnett,S. P. Plunkett,D. A. Biesecker +19 more
TL;DR: In this article, the authors tracked the birth and outflow of 50-100 of the most prominent moving coronal features and found that they originate about 3-4 R☉ from Sun center as radially elongated structures above the cusps of helmet streamers.
Journal ArticleDOI
Properties of coronal mass ejections: SOHO LASCO observations from January 1996 to June 1998
O. C. St. Cyr,Russell A. Howard,N. R. Sheeley,Simon Plunkett,D. J. Michels,S. E. Paswaters,M. J. Koomen,G. M. Simnett,Barbara J. Thompson,Joseph B. Gurman,Rainer Schwenn,David F. Webb,E. Hildner,Philippe Lamy +13 more
TL;DR: In this article, the authors report the properties of all the 841 coronal mass ejections (CMEs) observed by the SOHO Large Angle Spectroscopic Coronagraph (LASCO) C2 and C3 white-light coronagraphs from January 1996 through June 1998, and compare those properties to previous observations by other similar instruments.
Journal ArticleDOI
Coronal mass ejections - 1979-1981
TL;DR: An overview of observations of coronal mass ejections (CMEs) during the interval March 28, 1979 through December 31, 1981 is presented in this paper, where an introduction is provided to the instrument used in the observations, the method of identifying CMEs, the concepts of CME structural classes, CME importance categories, and the distribution of mass ejection among these classes and categories.