Zobrazeno 1 - 10
of 15
pro vyhledávání: '"P. J. MacNeice"'
Autor:
Cary Zeitlin, David E. Brinza, O. Kortmann, Robert F. Wimmer-Schweingruber, Y. Tyler, Bernd Heber, Arik Posner, David Grinspoon, C. Martin Garcia, Reinhold Müller-Mellin, Jan Köhler, Kerrington D. Smith, Mark A. Bullock, M. H. Y. Kim, J. Andrews, M. Epperly, Jingnan Guo, K. Neal, Donald M. Hassler, Bent Ehresmann, H. A. Elliott, Francis A. Cucinotta, S. Rafkin, E. Weigle, R. A. Frahm, L. Seimetz, J. J. Hayes, P. J. MacNeice, Günther Reitz, Stephan Böttcher, Sönke Burmeister, D. Odstrĉil, L. Rastaetter, T. T. von Rosenvinge, R. Beaujean, E. R. Christian
Publikováno v:
Planetary and Space Science. 89:127-139
We show that a spacecraft launched from Earth towards Mars following a Hohmann minimum energy transfer trajectory has a strong tendency to remain well-connected magnetically to Earth, in the early phase of the transfer, or to Mars in the late phase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9d61b8e647f672736c87d14cc1abd9a
https://doi.org/10.1016/j.pss.2013.09.013
https://doi.org/10.1016/j.pss.2013.09.013
Autor:
P. J. MacNeice, Ester Antonucci, G. M. Simnett, Helen E. Mason, Brian R. Dennis, C. Jordan, R. A. Shine, David M. Rust, R. Pallavicini
We describe and analyse observations of an M1.4 flare which began at 17: 00 UT on 12 November, 1980. Ground based Hα and magnetogram data have been combined with EUV, soft and hard X-ray observations made with instruments on-board the Solar Maximum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d7be63df1321f5108187c7df67bf2c0
https://doi.org/10.1007/bf00157307
https://doi.org/10.1007/bf00157307
Autor:
Pete Riley, Dusan Odstrcil, Christina O. Lee, P. J. MacNeice, Janet G. Luhmann, Charles N. Arge, I. de Pater
Publikováno v:
Solar Physics. 254:155-183
We present results of solar-wind parameters generated by 3D MHD models. The ENLIL inner-heliosphere solar-wind model together with the MAS or Wang – Sheeley – Arge (WSA) coronal models, describe the steady solar-wind stream structure and its orig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e53999257070a912598e35a19f815a4
https://doi.org/10.1007/s11207-008-9280-y
https://doi.org/10.1007/s11207-008-9280-y
Publikováno v:
The Astrophysical Journal. 624:L129-L132
We investigate the factors responsible for initiating coronal mass ejections (CMEs), specifically, the role of magnetic helicity. Using numerical simulations of the breakout model for CMEs, we show that eruption occurs at a fixed magnitude of free en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11be2000e6f08eeb03406ee74c834da3
https://doi.org/10.1086/430516
https://doi.org/10.1086/430516
Publikováno v:
The Astrophysical Journal. 617:589-599
We compare the "magnetic breakout" model for coronal mass ejections (CMEs) with observed general properties of CMEs by analyzing in detail recent high-resolution MHD simulations of a complete breakout CME. The model produces an eruption with a three-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dc3af3ac67215bc739bdc2e96c1bf7b
https://doi.org/10.1086/424564
https://doi.org/10.1086/424564
Publikováno v:
The Astrophysical Journal. 614:1028-1041
A leading theory for the initiation of coronal mass ejections (CMEs) is the breakout model, in which magnetic reconnection above a filament channel is responsible for disrupting the coronal magnetic field. We present the first simulations of the comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58dd3c912a6b66938b236efd09ce39f9
https://doi.org/10.1086/423887
https://doi.org/10.1086/423887
Publikováno v:
The Astrophysical Journal. 603:322-329
Recent observations from the Transition Region and Coronal Explorer (TRACE) and the EUV Imaging Telescope (EIT) show that warm (T ≈ 1-1.5 MK) EUV coronal loops in active regions generally have enhanced densities, enhanced pressure scale heights, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5e295913313a7d5e27545f9245c6b79
https://doi.org/10.1086/381426
https://doi.org/10.1086/381426
Publikováno v:
The Astrophysical Journal. 593:1187-1194
This paper discusses constraints on the magnetic field geometry of solar prominences derived from one-dimensional modeling and analytic theory of the formation and support of cool coronal condensations. In earlier numerical studies we identified a me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22ba5f1603fdb24227599c76a7f4d139
https://doi.org/10.1086/376690
https://doi.org/10.1086/376690
Publikováno v:
The Astrophysical Journal. 553:L85-L88
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be8192c512acc5de12fb7ce0b0c6e3c2
https://doi.org/10.1086/320497
https://doi.org/10.1086/320497
Publikováno v:
The Astrophysical Journal. 536:494-499
We present numerical simulations and analytic theory for the thermal nonequilibrium of solar coronal flux tubes that have a stretched-out, dipped geometry, appropriate for a prominence/filament. Our simulations indicate that if the heating in such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c2197b0a5112887fb6d00ed1409e4d9
https://doi.org/10.1086/308922
https://doi.org/10.1086/308922