Standard

Magnetic double-gradient instability and flapping waves in a current sheet. / Erkaev, N. V.; Semenov, V. S.; Biernat, H. K.

In: Physical Review Letters, Vol. 99, No. 23, 235003, 07.12.2007.

Research output: Contribution to journal › Article › peer-review

Harvard

Erkaev, NV, Semenov, VS & Biernat, HK 2007, 'Magnetic double-gradient instability and flapping waves in a current sheet', Physical Review Letters, vol. 99, no. 23, 235003. https://doi.org/10.1103/PhysRevLett.99.235003

APA

Erkaev, N. V., Semenov, V. S., & Biernat, H. K. (2007). Magnetic double-gradient instability and flapping waves in a current sheet. Physical Review Letters, 99(23), [235003]. https://doi.org/10.1103/PhysRevLett.99.235003

Vancouver

Erkaev NV, Semenov VS, Biernat HK. Magnetic double-gradient instability and flapping waves in a current sheet. Physical Review Letters. 2007 Dec 7;99(23). 235003. https://doi.org/10.1103/PhysRevLett.99.235003

Author

Erkaev, N. V. ; Semenov, V. S. ; Biernat, H. K. / Magnetic double-gradient instability and flapping waves in a current sheet. In: Physical Review Letters. 2007 ; Vol. 99, No. 23.

BibTeX

@article{f7b3f0d5d447499faf2fb0a5916dae88,
title = "Magnetic double-gradient instability and flapping waves in a current sheet",
abstract = "A new kind of magnetohydrodynamic instability and waves are analyzed for a current sheet in the presence of a small normal magnetic field component varying along the sheet. These waves and instability are related to the existence of two gradients of the tangential (Bτ) and normal (Bn) magnetic field components along the normal (nBτ) and tangential (τBn) directions with respect to the current sheet. The current sheet can be stable or unstable if the multiplication of two magnetic gradients is positive or negative. In the stable region, the kinklike wave mode is interpreted as so-called flapping waves observed in Earth's magnetotail current sheet. The kink wave group velocity estimated for the Earth's current sheet is of the order of a few tens of kilometers per second. This is in good agreement with the observations of the flapping motions of the magnetotail current sheet.",
author = "Erkaev, {N. V.} and Semenov, {V. S.} and Biernat, {H. K.}",
year = "2007",
month = dec,
day = "7",
doi = "10.1103/PhysRevLett.99.235003",
language = "English",
volume = "99",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "23",

}

RIS

TY - JOUR

T1 - Magnetic double-gradient instability and flapping waves in a current sheet

AU - Erkaev, N. V.

AU - Semenov, V. S.

AU - Biernat, H. K.

PY - 2007/12/7

Y1 - 2007/12/7

N2 - A new kind of magnetohydrodynamic instability and waves are analyzed for a current sheet in the presence of a small normal magnetic field component varying along the sheet. These waves and instability are related to the existence of two gradients of the tangential (Bτ) and normal (Bn) magnetic field components along the normal (nBτ) and tangential (τBn) directions with respect to the current sheet. The current sheet can be stable or unstable if the multiplication of two magnetic gradients is positive or negative. In the stable region, the kinklike wave mode is interpreted as so-called flapping waves observed in Earth's magnetotail current sheet. The kink wave group velocity estimated for the Earth's current sheet is of the order of a few tens of kilometers per second. This is in good agreement with the observations of the flapping motions of the magnetotail current sheet.

AB - A new kind of magnetohydrodynamic instability and waves are analyzed for a current sheet in the presence of a small normal magnetic field component varying along the sheet. These waves and instability are related to the existence of two gradients of the tangential (Bτ) and normal (Bn) magnetic field components along the normal (nBτ) and tangential (τBn) directions with respect to the current sheet. The current sheet can be stable or unstable if the multiplication of two magnetic gradients is positive or negative. In the stable region, the kinklike wave mode is interpreted as so-called flapping waves observed in Earth's magnetotail current sheet. The kink wave group velocity estimated for the Earth's current sheet is of the order of a few tens of kilometers per second. This is in good agreement with the observations of the flapping motions of the magnetotail current sheet.

UR - http://www.scopus.com/inward/record.url?scp=36849079822&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.99.235003

DO - 10.1103/PhysRevLett.99.235003

M3 - Article

AN - SCOPUS:36849079822

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 235003

ER -

ID: 53083102