Results 41 to 50 of about 20,122 (200)

Accretion, Outflows, and Winds of Magnetized Stars

, 2016
Many types of stars have strong magnetic fields that can dynamically influence the flow of circumstellar matter. In stars with accretion disks, the stellar magnetic field can truncate the inner disk and determine the paths that matter can take to flow ...
A. Brandenburg, A. Ibragimov, A. Kulkarni, A. Kulkarni, A. Kulkarni, A. Königl, A. Königl, A. Papitto, A. Papitto, A. Papitto, A. Patruno, A. Patruno, A. Patruno, A. ud-Doula, A. ud-Doula, A. ud-Doula, A. ud-Doula, A. ud-Doula, A.A. Vidotto, A.A. Vidotto, A.F. Illarionov, A.I. Boiko, A.K. Kulkarni, A.M. Archibald, A.M. Cody, A.P. Goodson, A.P. Goodson, A.P. Goodson, A.V. Koldoba, A.V. Koldoba, B. Warner, C. Dougados, C. Ferrigno, C. Hellier, C. Johns-Krull, C. Terquem, C. Zanni, C.G. Campbell, C.M. Johns-Krull, C.R. D’Angelo, C.W. Mauche, D. Barret, D. Lai, D.A. Uzdensky, E. Alecian, E. Alecian, E. Gullbring, E.J. Weber, F. Bacciotti, F. Shu, F.K. Lamb, F.K. Lamb, G. Scandariato, G.A. Wynn, G.S. Bisnovatyi-Kogan, G.S. Bisnovatyi-Kogan, G.S. Bisnovatyi-Kogan, G.V. Ustyugova, H.C. Spruit, H.C. Spruit, H.C. Spruit, J. Arons, J. Babel, J. Babel, J. Bouvier, J. Bouvier, J. Bouvier, J. Bouvier, J. Ferreira, J. Poutanen, J. Stauffer, J. Stauffer, J.-F. Donati, J.-F. Donati, J.-F. Donati, J.-F. Donati, J.-F. Donati, J.-F. Donati, J.B. Simon, J.C. McKinney, J.C.L. Wang, J.E. Pringle, J.F. Hawley, J.F. Hawley, J.H. Grunhut, J.J. Aly, J.L. Sokoloski, J.M. Carpenter, J.M. Stone, J.M. Stone, J.M. Stone, J.M. Stone, J.O. Sundqvist, J.S. Vink, K. Beckwith, K. Hamaguchi, K.A. Miller, L. Hartmann, L. Rastätter, L.A. Hillenbrand, M. Audard, M. Bachetti, M. Camenzind, M. Flock, M. Gagné, M. Jardine, M. Kaisig, M. Klis Van der, M. Klis van der, M. Linares, M. Long, M. Long, M. Long, M. Long, M. Long, M. Méndez, M.A. Alpar, M.A. Alpar, M.C. Miller, M.G. Kivelson, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.M. Romanova, M.R. Hayashi, N. Bessolaz, N. Calvet, N. Calvet, N.I. Shakura, O. Kochukhov, P. Armitage, P. Bult, P. Ghosh, P. Ghosh, P.S. Lii, P.S. Lii, R. Kurosawa, R. Kurosawa, R. Kurosawa, R. Kurosawa, R. Kurosawa, R. Wijnands, R. Wijnands, R.A. Sunyaev, R.D. Blandford, R.H.D. Townsend, R.H.D. Townsend, R.H.D. Townsend, R.H.D. Townsend, R.H.D. Townsend, R.P. Fender, R.V.E. Lovelace, R.V.E. Lovelace, R.V.E. Lovelace, R.V.E. Lovelace, R.V.E. Lovelace, R.V.E. Lovelace, S. Boutloukos, S. Chandrasekhar, S. Edwards, S. Heinz, S. Hirose, S. Kato, S. Kato, S. Kato, S. Matt, S. Matt, S. Matt, S. Straaten van, S.A. Balbus, S.A. Balbus, S.G. Gregory, S.H.P. Alencar, S.H.P. Alencar, S.M. Rucinski, S.P. Owocki, T. Chlebowski, T. Ray, T.J. Harries, V. Petit, V.M. Lipunov, W. Herbst, Y. Nazé, Y.-M. Wang, Y.-M. Wang   +192 more
core   +1 more source

Excitation of Alfvén waves by modulated HF heating of the ionosphere, with application to FAST observations [PDF]

Annales Geophysicae, 2002
During the operation of the EISCAT high power facility (heater) at Tromsø, Norway, on 8 October 1998, the FAST spacecraft made electric field and particle observations in the inner magnetosphere at 0.39 Earth radii above the heated ionospheric ...
E. Kolesnikova, E. Kolesnikova, T. R. Robinson, J. A. Davies, D. M. Wright, M. Lester   +5 more
doaj   +1 more source

Line and continuum radiative transfer modelling of AA Tau [PDF]

, 2014
We present photometric and spectroscopic models of the Classical T Tauri star AA Tau. Photometric and spectroscopic variability present in observations of AA Tau is attributed to a magnetically induced warp in the accretion disc, periodically occulting ...
Bouvier, J., Esau, C. F., Harries, T. J.
core   +4 more sources

Intensification of the Electron Zebra Stripes in the Earth's Inner Magnetosphere During Geomagnetic Storms

Geophysical Research Letters
We examined rapid variations in the electron zebra stripe patterns, specifically at L = 1.5, over a three‐month duration, using twin Van Allen Probes within Earth's inner magnetosphere. During geomagnetically quiet intervals, these stripes exhibit a peak‐
Megha Pandya, Yusuke Ebihara, Takashi Tanaka, Jerry W. Manweiler, Sarah K. Vines   +4 more
doaj   +1 more source

Electric Current Approach Studying Both Auroral Substorms and Solar Flares Together

Frontiers in Astronomy and Space Sciences, 2020
Auroral substorms and solar flares are basically various manifestations of electromagnetic energy dissipation processes, so it is useful to consider both phenomena in terms of a chain of processes, consisting of power supply (dynamo), transmission ...
Syun-Ichi Akasofu
doaj   +1 more source

Constraining the Origin of Magnetar Flares [PDF]

, 2014
Sudden relaxation of the magnetic field in the core of a magnetar produces mechanical energy primarily in the form of shear waves which propagate to the surface and enter the magnetosphere as relativistic Alfv\'en waves.
Link, Bennett
core   +1 more source

Observational features of charge distribution in Earth’s inner magnetosphere

Communications Physics
Understanding the motion of charged particles in the electromagnetic field in the inner magnetosphere is essential for space science and space weather. Charge accumulation can occur due to the dipole magnetic and convective electric fields in this region.
Lai Gao, Chao Shen, Yufei Zhou, Yong Ji, Zuyin Pu, George Parks, Christopher T. Russell, Gang Zeng, Lan Ma, Roy B. Torbert, Yanyan Yang, James L. Burch   +11 more
doaj   +1 more source

Latitudinal dependence of ground VLF transmitter wave power in the inner magnetosphere

Frontiers in Astronomy and Space Sciences, 2023
In this study, we use approximately 3 years of observations from the Exploration of energization and Radiation in Geospace (ERG/Arase) satellite to statistically study the meridional distribution of wave power from very-low-frequency (VLF) ground ...
Zhiyang Xia, Lunjin Chen, Wenyao Gu, Richard B. Horne, Yoshizumi Miyoshi, Yoshiya Kasahara, Atsushi Kumamoto, Fuminori Tsuchiya, Satoko Nakamura, Masahiro Kitahara, Iku Shinohara   +10 more
doaj   +1 more source

Anti-particles in the inner magnetosphere: energetic positron population

Geofísica Internacional, 1996
Se analiza la generación de antipartículas atrapadas en el cinturón interior de la magnetosfera. Dichas partículas podrían tener flujos en exceso de los flujos interestelares generados por rayos cósmicos.
I. M. Martin, A. A. Gusev, G. I. Pugacheva, M. G. Silva Mello   +3 more
doaj   +1 more source

Electron pitch-angle diffusion: resonant scattering by waves vs. nonadiabatic effects [PDF]

Annales Geophysicae, 2013
In this paper we investigate the electron pitch-angle diffusion coefficients in the night-side inner magnetosphere around the geostationary orbit (L ~ 7) due to magnetic field deformation.
A. V. Artemyev, A. V. Artemyev, K. G. Orlova, K. G. Orlova, D. Mourenas, O. V. Agapitov, O. V. Agapitov, V. V. Krasnoselskikh   +7 more
doaj   +1 more source