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
Statistical Characteristics of Particle Injections throughout the Equatorial Magnetotail
Christine Gabrielse,Vassilis Angelopoulos,Andrei Runov,Drew Turner +3 more
- 15 Dec 2014
TL;DR: In this paper, the authors show a good correlation between injections and transient, narrow, fast flow channels as well as earthward reconnection fronts in the magnetotail, but statistical observations beyond geosynchronous orbit (GEO) to verify the findings were lacking.
THEMIS observations and modeling of multiple ion species and EMIC waves: Implications for a vanishing He+ stop band
TL;DR: In this article, left-hand polarized electro-magnetic ion cyclotron (EMIC) waves with significant wave power across fHe+ were observed, and the authors provided the first observational evidence of the importance of the cool ion species temperature/density in controlling linear wave growth through the heavy ion stop bands in warm plasma theory.
THEMIS Observations of Magnetosheath‐Origin Foreshock Ions
Terry Z. Liu,Vassilis Angelopoulos,Andrew Tung Huy Vu,Hui Zhang,Antonius Otto,Kun Zhang +5 more
- 01 Feb 2024
TL;DR: The magnetosheath leakage process is a significant contributor to the formation of the ion foreshock, resulting in high foreshock ion density.
Local time extent of magnetopause reconnection using space–ground coordination
Ying Zou,Ying Zou,Brian Walsh,Yukitoshi Nishimura,Yukitoshi Nishimura,Vassilis Angelopoulos,J. Michael Ruohoniemi,Kathryn A. McWilliams,Nozomu Nishitani +8 more
TL;DR: In this article, the extents of magnetic reconnection at the Earth's magnetopause were investigated using coordinated observations of multiple spacecraft and radars for three conjunction events, and the results indicated that both spatially patchy and spatially continuous and extended reconnections are possible forms of active reconnection.
The THEMIS all-sky imaging array—system design and initial results from the prototype imager
Eric Donovan,Stephen B. Mende,Brian Jackel,Harald U. Frey,M. Syrjasuo,I. Voronkov,T. S. Trondsen,Laura Peticolas,Vassilis Angelopoulos,S. Harris,M. Greffen,Martin Connors +11 more
TL;DR: The THEMIS project as mentioned in this paper is a NASA MIDEX mission scheduled for launch in 2006, which consists of five magnetospheric satellites in equatorial orbits, three of which will have apogees around 12 Re, while the fourth and fifth will have Apogee at ∼ 20 and ∼ 30 Re.