Zobrazeno 1 - 10
of 83
pro vyhledávání: '"F. Søraas"'
Publikováno v:
Annales Geophysicae, Vol 22, Pp 511-525 (2004)
In this paper we discuss counterstreaming electrons, electric field turbulence, HF radar spectral width enhancements, and field-aligned currents in the southward IMF cusp region. Electric field and particle observations from the FAST spacecraft ar
Externí odkaz:
https://doaj.org/article/eb7062982cb242c4a38ef98f787ce46d
Autor:
J. Moen, J. A. Holtet, A. Pedersen, B. Lybekk, K. Svenes, K. Oksavik, W. F. Denig, E. Lucek, F. Søraas, M. André
Publikováno v:
Annales Geophysicae, Vol 19, Pp 1655-1668 (2001)
The Cluster spacecraft experienced several boundary layer encounters when flying outbound from the magnetosphere to the magnetosheath in the dusk sector on 14 January 2001. The dayside boundary layer was populated by magnetosheath electrons, bu
Externí odkaz:
https://doaj.org/article/23103286aa864b2d9dba982f6236b1a8
Autor:
B. Wilken, P. W. Daly, U. Mall, K. Aarsnes, D. N. Baker, R. D. Belian, J. B. Blake, H. Borg, J. Büchner, M. Carter, J. F. Fennell, R. Friedel, T. A. Fritz, F. Gliem, M. Grande, K. Kecskemety, G. Kettmann, A. Korth, S. Livi, S. McKenna-Lawlor, K. Mursula, B. Nikutowski, C. H. Perry, Z. Y. Pu, J. Roeder, G. D. Reeves, E. T. Sarris, I. Sandahl, F. Søraas, J. Woch, Q.-G. Zong
Publikováno v:
Annales Geophysicae, Vol 19, Pp 1355-1366 (2001)
The advanced energetic particle spectrometer RAPID on board Cluster can provide a complete description of the relevant particle parameters velocity, V , and atomic mass, A, over an energy range from 30 keV up to 1.5 MeV. We present the first me
Externí odkaz:
https://doaj.org/article/7629bc0e7c6b4d209a5a35415bfb4e6f
Publikováno v:
Annales Geophysicae, Vol 16, Pp 148-160 (1998)
The PULSAUR II rocket was launched from Andøya Rocket Range at 23.43 UT on 9 February 1994 into a pulsating aurora. In this paper we focus on the observations of precipitating electrons and auroral X-rays. By using models it is possible to deduce
Externí odkaz:
https://doaj.org/article/2cb0088f2c58458883d49a9a707afcbd
Publikováno v:
Annales Geophysicae, Vol 12, Pp 1052-1064 (1994)
Two sounding rockets equipped with photometers and particle detectors have been flown into proton auroras. The measured altitude dependence of the proton flux is compared with calculations based upon known energy-range relations for protons in air
Externí odkaz:
https://doaj.org/article/5ce4320ed2db49dbb643f09d50203861
Publikováno v:
Annales Geophysicae, Vol 12, Iss 10/11, Pp 1052-1064 (0000)
Two sounding rockets equipped with photometers and particle detectors have been flown into proton auroras. The measured altitude dependence of the proton flux is compared with calculations based upon known energy-range relations for protons in air. E
Externí odkaz:
https://doaj.org/article/474eb341a2924d0980a0661c1589a40a
Publikováno v:
Annales Geophysicae, Vol 12, Pp 1052-1064 (1994)
Annales Geophysicae, Vol 12, Iss 10/11, Pp 1052-1064 (0000)
Annales Geophysicae, Vol 12, Iss 10/11, Pp 1052-1064 (0000)
Two sounding rockets equipped with photometers and particle detectors have been flown into proton auroras. The measured altitude dependence of the proton flux is compared with calculations based upon known energy-range relations for protons in air. E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b83e7bb293e856a681b505459070e9f7
https://www.ann-geophys.net/12/1052/1994/
https://www.ann-geophys.net/12/1052/1994/
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 62:162-166
A low noise UV-enhanced silicon photodiode has been modified into a low energy particle detector by removing the antireflection oxide layer. The electronic noise of a 100 mm 2 device and a conventional charge sensitive preamplifier has been measured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a815b07d6843550b9bd5b77b6064e9f5
https://doi.org/10.1016/0168-583x(91)95944-9
https://doi.org/10.1016/0168-583x(91)95944-9
Publikováno v:
Polar Cap Boundary Phenomena ISBN: 9789401061957
The polar cap boundary is a subject of central importance to current magnetosphere-ionosphere research and its applications in “space weather” activities. The problems are that it has a number of definitions, and that the most physically meaningf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cd615acd3568150c4be449e44be6534
https://doi.org/10.1007/978-94-011-5214-3_32
https://doi.org/10.1007/978-94-011-5214-3_32
Autor:
E. Thrane, K. Måseide, T.A. Jacobsen, Alv Egeland, K. Aarsnes, J. Trøim, B. Grandal, N. C. Maynard, B.N. Maehlum, J. A. Holtet, Johan Stadsnes, F. Søraas
Publikováno v:
Planetary and Space Science. 28:259-278
A mother-daughter rocket was launched over two auroral structures, which included a 10 keV electron accelerator and a series of diagnostic instruments for monitoring optical and wave effects generated through beam-atmospheric interactions and product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1f8f356d94be9357f8394c7107c1ac0
https://doi.org/10.1016/0032-0633(80)90017-3
https://doi.org/10.1016/0032-0633(80)90017-3