Vassilis Angelopoulos
University of California, Los Angeles
857 Papers
5.4K Citations
Vassilis Angelopoulos is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Magnetosphere & Substorm. The author has an hindex of 80, co-authored 741 publications. Previous affiliations of Vassilis Angelopoulos include University of California, Berkeley & University of Texas at Dallas.
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Papers
Distribution of ULF Wave Power in Magnetic Latitude and Local Time Using THEMIS and Arase Measurements
Theodore E. Sarris,Xinlin Li,Hong-Xia Zhao,Kostis Papadakis,Wenlong Liu,Weichao Tu,Vassilis Angelopoulos,Karl-Heinz Glassmeier,Yoshizumi Miyoshi,Ayako Matsuoka,Iku Shinohara,Shun Imajo +11 more
- 01 Oct 2022
TL;DR: In this article , the authors present a statistical analysis of the distribution of ULF wave power in magnetic latitude and local time and show that the wave power of the radial and azimuthal components of the magnetic field increases away from the magnetic equator.
Standing Alfven waves at the magnetopause
Ferdinand Plaschke,Karl-Heinz Glassmeier,H. U. Auster,O. D. Constantinescu,Werner Magnes,Vassilis Angelopoulos,David G. Sibeck,J. P. McFadden +7 more
TL;DR: In this paper, the authors present results from a statistical analysis of the oscillatory motion of the magnetopause based on THEMIS spacecraft observations, yielding the first experimental evidence for the existence of standing Alfvenic surface or Kruskal-Schwarzschild modes at the magnetosphere boundary.
Signatures of the substorm recovery phase at high‐altitude spacecraft
Daniel N. Baker,Tuija Pulkkinen,E. W. Hones,Richard D. Belian,Robert L. McPherron,Vassilis Angelopoulos +5 more
TL;DR: In this article, the authors investigated a total of 66 events in February-April 1979 where ISEE 2 observed a plasma sheet expansion associated with fast earthward flows and identified 50 events were clearly associated with the substorm recovery phase as identified in ground magnetic records.
Characteristics of the Poynting flux and wave normal vectors of whistler‐mode waves observed on THEMIS
Wen Li,Jacob Bortnik,Richard M. Thorne,Christopher Cully,Lunjin Chen,Vassilis Angelopoulos,Yukitoshi Nishimura,J. B. Tao,John W. Bonnell,O. LeContel +9 more
TL;DR: In this article, the Poynting flux and wave normal vectors of whistler-mode waves outside the plasmapause are investigated for the lower (0.1-0.5 fce) and upper bands (0.,5-0,8 fce), where fce is the equatorial electron cyclotron frequency.
Simultaneous THEMIS in situ and auroral observations of a small substorm
Eric Donovan,W. W. Liu,Jun Liang,Emma Spanswick,I. O. Voronkov,Martin Connors,M. Syrjäsuo,G. Baker,Brian Jackel,T. S. Trondsen,M. Greffen,Vassilis Angelopoulos,Christopher T. Russell,Stephen B. Mende,Harald U. Frey,A. Keiling,C. W. Carlson,J. P. McFadden,Karl-Heinz Glassmeier,Uli Auster,Kanji Hayashi,Kaori Sakaguchi,Kazuo Shiokawa,Jim Wild,I. J. Rae +24 more
TL;DR: In this paper, a dipolarization front moved across four THEMIS satellites within one minute, and the expansion phase began earthward of the four satellites and evolved radially outwards.