cavitons and spontaneous hot flow anomalies in a hybrid-vlasov global magnetospheric simulation

Clicks: 37
ID: 260317
2018
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #411 of 484 articles by views in journal of food measurement and characterization

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 484 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract

In this paper we present the first identification of foreshock cavitons and the formation of spontaneous hot flow anomalies (SHFAs) with the Vlasiator global magnetospheric hybrid-Vlasov simulation code. In agreement with previous studies we show that cavitons evolve into SHFAs. In the presented run, this occurs very near the bow shock. We report on SHFAs surviving the shock crossing into the downstream region and show that the interaction of SHFAs with the bow shock can lead to the formation of a magnetosheath cavity, previously identified in observations and simulations. We report on the first identification of long-term local weakening and erosion of the bow shock, associated with a region of increased foreshock SHFA and caviton formation, and repeated shock crossings by them. We show that SHFAs are linked to an increase in suprathermal particle pitch-angle spreads. The realistic length scales in our simulation allow us to present a statistical study of global caviton and SHFA size distributions, and their comparable size distributions support the theory that SHFAs are formed from cavitons. Virtual spacecraft observations are shown to be in good agreement with observational studies.

Reference Key
blanco-cano2018annalescavitons Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;X. Blanco-Cano;M. Battarbee;L. Turc;A. P. Dimmock;A. P. Dimmock;E. K. J. Kilpua;S. Hoilijoki;U. Ganse;D. G. Sibeck;P. A. Cassak;R. C. Fear;R. Jarvinen;R. Jarvinen;L. Juusola;L. Juusola;Y. Pfau-Kempf;R. Vainio;M. Palmroth;M. Palmroth
Journal journal of food measurement and characterization
Year 2018
DOI
10.5194/angeo-36-1081-2018
URL
https://www.ann-geophys.net/36/1081/2018/angeo-36-1081-2018.pdf
Keywords
cosmic physics sciencephysicsgeophysics

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.