Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Helfried K. Biernat"'
Publikováno v:
Scopus-Elsevier
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Variations of the plasma pressure in a magnetic flux tube can produce MHD waves evolving into shocks. In the case of a low plasma beta, plasma pressure pulses in the magnetic flux tube generate MHD slow shocks propagating along the tube. For convergi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5be54a87c8a1a265e85902cddecf6563
https://www.nonlin-processes-geophys.net/9/163/2002/
https://www.nonlin-processes-geophys.net/9/163/2002/
Autor:
Helmut Lammer, Manuel Güdel, Helfried K. Biernat, Nikolai V. Erkaev, Arnold Hanslmeier, Yuri N. Kulikov, Kristina G. Kislyakova, Petra Odert, Maxim L. Khodachenko
Publikováno v:
Astrobiology. 13:1011-1029
The recently discovered low-density "super-Earths" Kepler-11b, Kepler-11f, Kepler-11d, Kepler-11e, and planets such as GJ 1214b represent most likely planets which are surrounded by dense H/He envelopes or contain deep H2O oceans also surrounded by d
Autor:
G. Stangl, A.V. Kitaev, W. Hausleitner, Helfried K. Biernat, Valery V. Denisenko, M. Ampferer, E. V. Pomozov
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 102:341-353
A quasi stationary three dimensional model of electric fields and currents in the conductor that includes the Earth's atmosphere and ionosphere is created. The results of the three dimensional model are simpler regarding interpretation and explanatio
Autor:
Nikolai V. Erkaev, D. B. Korovinskiy, Giovanni Lapenta, V.V. Ivanova, Andrey Divin, Helfried K. Biernat, Stefano Markidis, M. Zellinger, Vladimir Semenov, I. B. Ivanov
Publikováno v:
Journal of Geophysical Research: Space Physics. 118:1146-1158
The paper presents the detailed numerical investigation of the "double-gradient mode," which is believed to be responsible for the magnetotail flapping oscillations-the fast vertical (normal to the layer) oscillations of the Earth's magnetotail plasm
Publikováno v:
Astrophysics and Space Sciences Transactions. 8:7-17
In this study, first direct and circumstantial ev- idences of the effects of cosmic rays (CR) on biological systems are presented. A direct evidence of biological ef- fects of CR is demonstrated in experiments with three cellu- lar lines growing in c
Autor:
Daniil Korovinskiy, U. V. Möstl, Helfried K. Biernat, Nikolay Erkaev, Michael Zellinger, Hannes Gröller, Helmut Lammer
Publikováno v:
Icarus
Highlights ► We study the Kelvin–Helmholtz instability at boundary layers around of Venus. ► The stability of the induced magnetopause and the ionopause is examined. ► The ionopause seems to be stable due to a large density jump across this b
Autor:
I. B. Ivanov, Helfried K. Biernat, Nikolai V. Erkaev, D. B. Korovinskiy, V.V. Ivanova, Vladimir Semenov, M. Zellinger
Publikováno v:
Advances in Space Research
A linear MHD instability of the electric current sheet, characterized by a small normal magnetic field component, varying along the sheet, is investigated. The tangential magnetic field component is modeled by a hyperbolic function, describing Harris
Autor:
Tielong Zhang, Chris Carr, Brian J. Anderson, Ingo Richter, Ryuho Kataoka, Christopher T. Russell, Tsugunobu Nagai, Timothy S. Horbury, Konrad Schwingenschuh, Yoshimasa Tanaka, Manabu Shinohara, Hideo Tsunakawa, Magda Delva, Karl Heinz Fornacon, Fumio Tohyama, Ayako Matsuoka, Masahiro Hoshino, Makoto Tanaka, Tomoko Nakagawa, Hans Ulrich Auster, Hideaki Kawano, Karl-Heinz Glassmeier, Wolfgang Baumjohann, Uwe Motschmann, Masaki Matsushima, Takao Takahashi, Michele K. Dougherty, Elizabeth Lucek, Hidetoshi Shibuya, André Balogh, Rumi Nakamura, Helfried K. Biernat, Werner Magnes, Peter J. Cargill, Akimasa Yoshikawa
Publikováno v:
Planetary and Space Science. 58:279-286
The Mercury magnetospheric orbiter (MMO) of the Japanese–European BepiColombo mission carries a dual-sensor magnetometer, MMO/MGF. The sensors are of the classical fluxgate type mounted on a boom. For redundancy, each sensor carries its own electro
Publikováno v:
Annales Geophysicae, Vol 27, Pp 4369-4377 (2009)
Annales Geophysicae, Vol 27, Iss 12, Pp 4369-4377 (2009)
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Annales Geophysicae, Vol 27, Iss 12, Pp 4369-4377 (2009)
ResearcherID
We apply the inverse reconstruction technique based on the two-dimensional time-dependent Petschek-type reconnection model to a dual bipolar magnetic structure observed by THEMIS B probe in the Earth's magnetotail during a substorm on 22 February 200
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