Zobrazeno 1 - 10
of 53
pro vyhledávání: '"D. Langmayr"'
Autor:
Per Even Sandholt, N. C. Maynard, Nikolai V. Erkaev, Roy B. Torbert, Charlie J. Farrugia, Helfried K. Biernat, K. W. Ogilvie, D. Langmayr, U. Taubenschuss, Ian G. Richardson, Adam Szabo
Publikováno v:
Advances in Space Research. 44:1288-1294
Using a serendipitous configuration of the ACE and Wind spacecraft, we monitor the response of the distant geomagnetic tail (∼ −220 R E ) to an abrupt, approx. fivefold pressure drop (from ∼19.0 to ∼3.5 nPa) at the front boundary of a magneti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9af7c7e8f6028851bcceb59e492ff54
https://doi.org/10.1016/j.asr.2009.07.003
https://doi.org/10.1016/j.asr.2009.07.003
Autor:
P. W. Daly, D. Langmayr, Helfried K. Biernat, Nikolai V. Erkaev, S. Mühlbachler, Ilya V. Alexeev, Anthony T. Y. Lui
Publikováno v:
Advances in Space Research. 43:1588-1593
This study presents several observations of the Cluster spacecraft on September 24, 2003 around 15:10 UT, which show necessary prerequisites and consequences for the formation of the so-called modified-two-stream instability (MTSI). Theoretical studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99f72ceca2c2b0cd698f525fa4dc542
https://doi.org/10.1016/j.asr.2009.01.012
https://doi.org/10.1016/j.asr.2009.01.012
Publikováno v:
Planetary and Space Science. 55:1804-1810
This paper is devoted to the application of the modified two stream or cross current instability (MTSI) to the interaction of the solar wind and Venus. Two scenarios are presented providing favorable conditions for the excitation of the instability.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a321311f01632eb0896bd820a78ed725
https://doi.org/10.1016/j.pss.2007.01.017
https://doi.org/10.1016/j.pss.2007.01.017
Publikováno v:
Planetary and Space Science. 55:1811-1816
In this paper, the Kelvin–Helmholtz instability is studied by solving the ideal MHD equations for a compressible plasma. A transition layer of finite thickness between two plasmas, across which the magnitude of the velocity and the density change,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0d0e0542f4968a9bca20659004e445b
https://doi.org/10.1016/j.pss.2007.01.015
https://doi.org/10.1016/j.pss.2007.01.015
Autor:
Nikolai V. Erkaev, Maxim L. Khodachenko, Helmut Lammer, D. Langmayr, Thomas Penz, Herbert Lichtenegger, J-M. Grießmeier, Helmut O. Rucker, Uwe Motschmann, M. Leitner, Helfried K. Biernat
Publikováno v:
Planetary and Space Science
Planetary and Space Science, 2007, 55, pp.631-642. ⟨10.1016/j.pss.2006.07.010⟩
Planetary and Space Science, 2007, 55, pp.631-642. ⟨10.1016/j.pss.2006.07.010⟩
Atmospheric erosion due to CME-caused ion pick-up is investigated here for the first time for short periodic gas giants (so-called “Hot Jupiters”) orbiting close to a star. To study the effect of encountering CMEs produced on the magnetospheres a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::470ad326035eed36a2f8fb3a22b5bc77
https://doi.org/10.1016/j.pss.2006.07.010
https://doi.org/10.1016/j.pss.2006.07.010
Autor:
S. Barabash, Helmut Lammer, Ignasi Ribas, Herbert Lichtenegger, Yu. N. Kulikov, E. F. Guinan, Rickard Lundin, D. Langmayr, Naoki Terada, Helfried K. Biernat, C. Kolb
Publikováno v:
Planetary and Space Science. 54:1425-1444
Previous interpretations of the Pioneer Venus mass spectrometer data of the deuterium to hydrogen ( D / H ) ratio of 1.9 × 10 - 2 or 120 ± 40 times the terrestrial value indicate that Venus may have had at least an H 2 O content of the order of abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fda6f6da53ad41ac8eef65e2ce44f61c
https://doi.org/10.1016/j.pss.2006.04.021
https://doi.org/10.1016/j.pss.2006.04.021
Autor:
Nikolai V. Erkaev, G. F. Jaritz, D. Langmayr, Helfried K. Biernat, J.-M. Grießmeier, S. Endler, Helmut Lammer
Publikováno v:
Astronomy & Astrophysics. 439:771-775
Theoretical studies and recent observational evidence of the expansion of the atmospheres of short-periodic exoplanets show that the atmospheres extend up to several planetary radii. This indicates that the atmospheres experience blow-off conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54e008ac19a72635609d79a2336e19d5
https://doi.org/10.1051/0004-6361:20052946
https://doi.org/10.1051/0004-6361:20052946
Autor:
Vladimir Semenov, Helfried K. Biernat, H. O. Rucker, Wolfgang Macher, D. Langmayr, Nikolai V. Erkaev
Publikováno v:
Advances in Space Research. 33:780-783
It is well known that in contrast to the Alfven 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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::828ff7297cdbed5da7f19fd43f1bb0d5
https://doi.org/10.1016/s0273-1177(03)00631-8
https://doi.org/10.1016/s0273-1177(03)00631-8
Autor:
Helfried K. Biernat, I. V. Kubyshkin, S. Mühlbachler, Charlie J. Farrugia, D. Langmayr, Nikolai V. Erkaev, D. F. Vogl, Vladimir Semenov
Publikováno v:
Advances in Space Research. 33:2103-2107
During periods of a persistent southward interplanetary magnetic field, reconnection is initiated at the dayside magnetopause and flux is transported away to the nightside magnetosphere. This is the so-called phenomenon of magnetosphere erosion. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c413b6c15f1d81e88783341e94f0168d
https://doi.org/10.1016/j.asr.2003.04.052
https://doi.org/10.1016/j.asr.2003.04.052
Publikováno v:
Advances in Space Research. 33:784-788
The interplanetary magnetic field is enhanced in a thin layer near the magnetopause which is called the magnetic barrier or plasma depletion layer. The magnetic energy stored in the magnetic barrier can be released during the process of magnetic fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcd69869301ffb2987c9deb9e91ed5a7
https://doi.org/10.1016/s0273-1177(03)00646-x
https://doi.org/10.1016/s0273-1177(03)00646-x