Transmission of foreshock waves through Earth’s bow shock

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F23%3A00565946" target="_blank" >RIV/68378289:_____/23:00565946 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41567-022-01837-z" target="_blank" >https://www.nature.com/articles/s41567-022-01837-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41567-022-01837-z" target="_blank" >10.1038/s41567-022-01837-z</a>

Result language

angličtina

Original language name

Transmission of foreshock waves through Earth’s bow shock

Original language description

The Earth’s magnetosphere and its bow shock, which is formed by the interaction of the supersonic solar wind with the terrestrial magnetic field, constitute a rich natural laboratory enabling in situ investigations of universal plasma processes. Under suitable interplanetary magnetic field conditions, a foreshock with intense wave activity forms upstream of the bow shock. So-called 30 s waves, named after their typical period at Earth, are the dominant wave mode in the foreshock and play an important role in modulating the shape of the shock front and affect particle reflection at the shock. These waves are also observed inside the magnetosphere and down to the Earth’s surface, but how they are transmitted through the bow shock remains unknown. By combining state-of-the-art global numerical simulations and spacecraft observations, we demonstrate that the interaction of foreshock waves with the shock generates earthward-propagating, fast-mode waves, which reach the magnetosphere. These findings give crucial insight into the interaction of waves with collisionless shocks in general and their impact on the downstream medium.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nature Physics

ISSN

1745-2473

e-ISSN

1745-2481

Volume of the periodical

19

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

78-86

UT code for WoS article

000900797200001

EID of the result in the Scopus database

2-s2.0-85144329225