Results 81 to 90 of about 4,707 (204)

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

Differentiating Plumes and Local Torus Segments of Enceladus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract Enceladus's south polar plumes and their surrounding torus segments (local plasma regions formed by plume material diffusion) are key to understanding its magnetospheric interaction; however, clear observational criteria to distinguish them remain lacking.
Shangchun Teng, Zhonghua Yao, Jian Zhang, Tianshu Qin, Fiona Wai Chung Law, Jinyan Zhao, Ruilong Guo   +6 more
wiley   +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

Radio emission altitudes in the pulsar magnetosphere

The Astrophysical Journal, 1992
Multifrequency timing measurements of four pulsars were used to search for propagation delays predicted by the radius-to-frequency mapping (RFM) model of pulsar radio emission. The RFM model specifies that emissions at different frequencies are produced at different altitudes in the pulsar magnetosphere.
openaire   +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

PSR B0943+10: Mode Switch, Polar Cap Geometry, and Orthogonally Polarized Radiation

The Astrophysical Journal
As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing a mode switch, orthogonal polarization, and subpulse drifting, frequently studied below 600 MHz.
Shunshun Cao, Jinchen Jiang, Jaroslaw Dyks, Longfei Hao, Kejia Lee, Zhixuan Li, Jiguang Lu, Zhichen Pan, Weiyang Wang, Zhengli Wang, Jiangwei Xu, Heng Xu, Renxin Xu   +12 more
doaj   +1 more source

Candidates for detecting exoplanetary radio emissions generated by magnetosphere—ionosphere coupling [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2012
Abstract In this Letter we consider the magnetosphere—ionosphere (M—I) coupling at Jupiter-like exoplanets with internal plasma sources such as volcanic moons, and we have determined the best candidates for detection of these radio emissions by estimating the maximum spectral flux density expected from planets orbiting stars within 25 pc
openaire   +2 more sources

Saturn’s Radio Emissions and their Relation to Magnetospheric Dynamics (invited) [PDF]

PLANETARY RADIO EMISSIONS VII, 2011
With the arrival of the Cassini spacecraft at Saturn in July 2004, there have been quasi-continuous observations of Saturn Kilometric Radiation (SKR) emissions. In this paper we review the response of these emissions to dynamics in Saturn’s magnetosphere, driven by factors internal and external to the system.
openaire   +1 more source