Results 81 to 90 of about 4,735 (200)

Characterizing the Role of Storm‐Time High‐Latitude Ionospheric Structures in GPS Position Accuracy in Antarctica: May 2024 Storm

Space Weather, Volume 24, Issue 4, April 2026.
Abstract This study investigates the impact of high‐latitude ionospheric irregularities on global positioning system (GPS) position accuracy during the 10–11 May 2024 geomagnetic storm. Using data from ground‐based GPS receivers and an all‐sky camera in Antarctica, we examined evolution of GPS vertical total electron content, phase fluctuations, and ...
Waqar Younas, Yukitoshi Nishimura, Weixuan Liao, Josh L. Semeter, Sebastijan Mrak, Y. Jade Morton, Keith M. Groves, Tetsuo Motoba, Tim Everett   +8 more
wiley   +1 more source

Stellar Radio Astronomy. Probing Stellar Atmospheres from Protostars to Giants

, 2002
Radio astronomy has provided evidence for the presence of ionized atmospheres around almost all classes of non-degenerate stars. Magnetically confined coronae dominate in the cool half of the Hertzsprung-Russell diagram.
Guedel, Manuel
core   +1 more source

Enabling High‐Fidelity Wave‐Particle Interaction Studies: A Novel Filtering for Isolating Whistlers From Spacecraft Noise

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Resolving the mixture of natural plasma waves and persistent spacecraft interference is a fundamental challenge in space physics, as it obstructs the analysis of wave‐particle interactions and energy transport processes. Traditional signal decomposition methods often fail to adequately separate these components due to their time‐varying ...
Fulin Shi, Li Zeng, Yuhui Fu, Jinbin Cao, Zhima Zeren, Dapeng Liu, Dehe Yang   +6 more
wiley   +1 more source

Determining the State of Jupiter’s Magnetosphere Using In Situ and Remote Sensing Observations

The Astrophysical Journal
While Jupiter’s magnetosphere is primarily governed by internal processes, variations in solar wind conditions can significantly modulate magnetospheric energy.
J. W. Sun, L. Xie, Z. H. Yao, S. Y. Fu, B. Zhang, Y. Xu, F. Leppard, Y. N. Chen, D. Grodent, L. C. Ray, B. Bonfond, W. R. Dunn   +11 more
doaj   +1 more source

Enhancing Low‐Latitude Ionospheric Irregularity Prediction With Generalized Linear Models

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The ionosphere poses challenges for accurate forecasting due to its complexity and variability. Irregularities in the lower ionosphere are influenced by local time, season, geographic location, solar activity and space weather, complicating precise predictions.
Alysson Brhian, Marco A. Ridenti, Francisco Azpilicueta, Mauricio Gende, Marisa Roberto   +4 more
wiley   +1 more source

RAMBO. I. Project Introduction and First Results with uGMRT

The Astrophysical Journal
Magnetic hot stars can emit both coherent and incoherent nonthermal radio emission. Understanding the nature of these emissions and their connection to stellar rotation and magnetic field characteristics remains incomplete.
Z. Keszthelyi, K. Kurahara, Y. Iwata, Y. Fujii, H. Sakemi, K. Takahashi, S. Yoshiura   +6 more
doaj   +1 more source

Anthropogenic Space Weather

, 2017
Anthropogenic effects on the space environment started in the late 19th century and reached their peak in the 1960s when high-altitude nuclear explosions were carried out by the USA and the Soviet Union.
A. Finkbeiner, A. Karinen, A.B. Hassam, A.C. Dickieson, A.C. Durney, A.C. Durney, A.C. Fraser-Smith, A.C. Fraser-Smith, A.C. Fraser-Smith, A.J. Smith, A.J. Zmuda, A.L. Cullington, A.L. Vampola, A.L. Vampola, A.N. Jaynes, A.V. Streltsov, B. Abel, B.H. Mauk, B.J. O’Brien, B.J. O’Brien, B.T. Tsurutani, B.T. Tsurutani, C.A. Kletzing, C.E. McIlwain, C.E. McIlwain, C.G. Park, C.G. Park, C.J. Rodger, C.S. Roberts, D. Carpenter, D.J. Kessler, D.J. Williams, D.L. Carpenter, D.L. Carpenter, D.L. Reasoner, D.M. Chapin, D.N. Baker, D.N. Baker, D.N. Baker, D.P. Miles, G. Haerendel, G. Klawitter, G. Xin, G.F. Pieper, G.F. Pieper, G.F. Pieper, H. Elliot, H. Elliot, H. Klinkrad, H. Maeda, H.A. Bomke, H.A. Bomke, H.C. Koons, J. Leiphart, J. Roquet, J. Wait, J.-A. Sauvaud, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Allen Van, J.A. Lawrie, J.A. Sauvaud, J.B. Harold, J.C. Foster, J.C. Foster, J.F. Fennell, J.F. Fennell, J.F. Gabites, J.L. Green, J.P. Luette, J.S. Mayo, K. Bullough, K. Papadopoulos, K. Rastani, K.A. Zawdie, K.G. McKay, L. Allen, L. Biermann, M. Casaverde, M. Mendillo, M. Mendillo, M. Parrot, M. Parrot, M. Parrot, M. Parrot, M. Walt, M. Walt, M.A. Clilverd, M.B. Cohen, M.F. Larsen, M.J. Starks, M.J. Starks, N. Christofilos, N.C. Christofilos, O. Molchanov, P. Dyal, P. Kulkarni, P.A. Bernhardt, P.A. Bernhardt, P.A. Bernhardt, P.J. Edwards, P.J. Kellogg, P.R. Pisharoty, R. Helliwell, R. Lüst, R. Raghuram, R.A. Helliwell, R.A. Helliwell, R.A. Helliwell, R.A. Helliwell, R.B. Horne, R.C. Baker, R.C. Moore, R.E. Fischell, R.E. Fischell, R.G. D’Arcy, R.J. Danchik, R.L. Heyborne, R.L. Smith, R.R. Meier, R.R. Scarabucci, R.R. Unterberger, S. Breiner, S.A. Colgate, S.B. Mende, S.L. Kahalas, S.M. Krimigis, T. Pedersen, T.F. Bell, T.R. Pedersen, U.S. Inan, U.S. Inan, U.S. Inan, U.S. Inan, U.S. Inan, U.S. Inan, U.S. Inan, V.S. Sonwalkar, V.S. Sonwalkar, W. Rosenzweig, W.J. Karzas, W.K. Berthold, W.L. Brown, W.L. Brown, W.L. Brown, W.L. Imhof, W.N. Hess, W.N. Hess, X. Li, Y. Omura, Y.I. Galperin   +157 more
core   +1 more source

Evaluating Star–Planet Interactions with Zeeman Doppler Imaging: Case Study in YZ Ceti

The Astrophysical Journal
The recent detections of radio emission from the nearby exoplanet host, YZ Ceti, suggest that the star is possibly interacting with its rocky innermost planet.
J. Sebastian Pineda, Stefano Bellotti, Jackie Villadsen, Aline Vidotto, Julien Morin, Colin P. Folsom   +5 more
doaj   +1 more source

Onsite analysis of data from the Dynamics Explorer (DE) spacecraft [PDF]

The tasks performed by ARC Professional Services Group, Inc. fell into five parts: (1) dynamics explorer (DE) data analysis and modeling; (2) DE project support; (3) chemical release observations support; (4) VLF emissions and plasma instability studies;
Candey, Robert M., Fung, Shing F., Humphreys, Josephine N.   +2 more
core   +1 more source

Rapid Rotation of Polarization Orientations in PSR B1919+21’s Single Pulses: Implications on Pulsar’s Magnetospheric Dynamics

The Astrophysical Journal
We analyze and model rapid rotations of polarization orientations in PSR B1919+21’s single pulses based on Five-hundred-meter Aperture Spherical radio Telescope observation data.
Shunshun Cao, Jinchen Jiang, Jaroslaw Dyks, Kejia Lee, Jiguang Lu, Lucy S. Oswald, Weiyang Wang, Renxin Xu   +7 more
doaj   +1 more source