Standard

Analysis of a pressure disturbance in a homogeneous magnetic field. / Langmayr, D.; Erkaev, N. V.; Semenov, V. S.; Macher, W.; Biernat, H. K.; Rucker, H. O.

In: Advances in Space Research, Vol. 33, No. 5, 01.01.2004, p. 780-783.

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

Harvard

Langmayr, D, Erkaev, NV, Semenov, VS, Macher, W, Biernat, HK & Rucker, HO 2004, 'Analysis of a pressure disturbance in a homogeneous magnetic field', Advances in Space Research, vol. 33, no. 5, pp. 780-783. https://doi.org/10.1016/S0273-1177(03)00631-8

APA

Langmayr, D., Erkaev, N. V., Semenov, V. S., Macher, W., Biernat, H. K., & Rucker, H. O. (2004). Analysis of a pressure disturbance in a homogeneous magnetic field. Advances in Space Research, 33(5), 780-783. https://doi.org/10.1016/S0273-1177(03)00631-8

Vancouver

Langmayr D, Erkaev NV, Semenov VS, Macher W, Biernat HK, Rucker HO. Analysis of a pressure disturbance in a homogeneous magnetic field. Advances in Space Research. 2004 Jan 1;33(5):780-783. https://doi.org/10.1016/S0273-1177(03)00631-8

Author

Langmayr, D. ; Erkaev, N. V. ; Semenov, V. S. ; Macher, W. ; Biernat, H. K. ; Rucker, H. O. / Analysis of a pressure disturbance in a homogeneous magnetic field. In: Advances in Space Research. 2004 ; Vol. 33, No. 5. pp. 780-783.

BibTeX

@article{c73a90b1007c431793f8db93a880e77d,
title = "Analysis of a pressure disturbance in a homogeneous magnetic field",
abstract = "It is well known that in contrast to the Alfv{\'e}n wave, which is propagating strictly along the direction of the magnetic field, a slow mode wave shows a deviation from the ambient magnetic field. This deviation is determined by the dispersion equation for the slow mode wave. With the help of this dispersion equation we present a theoretical study of the spatial and temporal evolution of an initial pressure disturbance in a homogeneous and constant background magnetic field. The main factor determining the amount of the deviation is the so-called plasma beta, i.e., the ratio of magnetic to thermal energy, which is investigated quantitatively. We obtain that for a low beta plasma, the disturbance propagates more or less strictly along the magnetic field. However, for increasing beta the disturbances across the magnetic field gets stronger. These results can be applied to magnetospheric phenomena, where slow shocks may play a role as a kind of energy carrier as in the case of the Io-Jupiter interaction or magnetic field line reconnection.",
keywords = "Io-Jupiter interaction, Magnetohydrodynamics, Magnetosonic waves, Magnetosphere",
author = "D. Langmayr and Erkaev, {N. V.} and Semenov, {V. S.} and W. Macher and Biernat, {H. K.} and Rucker, {H. O.}",
year = "2004",
month = jan,
day = "1",
doi = "10.1016/S0273-1177(03)00631-8",
language = "English",
volume = "33",
pages = "780--783",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier",
number = "5",

}

RIS

TY - JOUR

T1 - Analysis of a pressure disturbance in a homogeneous magnetic field

AU - Langmayr, D.

AU - Erkaev, N. V.

AU - Semenov, V. S.

AU - Macher, W.

AU - Biernat, H. K.

AU - Rucker, H. O.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - It is well known that in contrast to the Alfvén wave, which is propagating strictly along the direction of the magnetic field, a slow mode wave shows a deviation from the ambient magnetic field. This deviation is determined by the dispersion equation for the slow mode wave. With the help of this dispersion equation we present a theoretical study of the spatial and temporal evolution of an initial pressure disturbance in a homogeneous and constant background magnetic field. The main factor determining the amount of the deviation is the so-called plasma beta, i.e., the ratio of magnetic to thermal energy, which is investigated quantitatively. We obtain that for a low beta plasma, the disturbance propagates more or less strictly along the magnetic field. However, for increasing beta the disturbances across the magnetic field gets stronger. These results can be applied to magnetospheric phenomena, where slow shocks may play a role as a kind of energy carrier as in the case of the Io-Jupiter interaction or magnetic field line reconnection.

AB - It is well known that in contrast to the Alfvén wave, which is propagating strictly along the direction of the magnetic field, a slow mode wave shows a deviation from the ambient magnetic field. This deviation is determined by the dispersion equation for the slow mode wave. With the help of this dispersion equation we present a theoretical study of the spatial and temporal evolution of an initial pressure disturbance in a homogeneous and constant background magnetic field. The main factor determining the amount of the deviation is the so-called plasma beta, i.e., the ratio of magnetic to thermal energy, which is investigated quantitatively. We obtain that for a low beta plasma, the disturbance propagates more or less strictly along the magnetic field. However, for increasing beta the disturbances across the magnetic field gets stronger. These results can be applied to magnetospheric phenomena, where slow shocks may play a role as a kind of energy carrier as in the case of the Io-Jupiter interaction or magnetic field line reconnection.

KW - Io-Jupiter interaction

KW - Magnetohydrodynamics

KW - Magnetosonic waves

KW - Magnetosphere

UR - http://www.scopus.com/inward/record.url?scp=1842738312&partnerID=8YFLogxK

U2 - 10.1016/S0273-1177(03)00631-8

DO - 10.1016/S0273-1177(03)00631-8

M3 - Article

AN - SCOPUS:1842738312

VL - 33

SP - 780

EP - 783

JO - Advances in Space Research

JF - Advances in Space Research

SN - 0273-1177

IS - 5

ER -

ID: 53084187