Results 141 to 150 of about 600 (183)

Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission. [PDF]

Space Sci Rev
McComas DJ, Christian ER, Schwadron NA, Gkioulidou M, Allegrini F, Baker DN, Bzowski M, Clark G, Cohen CMS, Cohen I, Collura C, Cully MJ, Dalla S, Desai MI, Driesman A, Eng D, Fox NJ, Funsten HO, Fuselier SA, Galli A, Giacalone J, Hahn J, Hegarty KP, Horbury T, Horanyi M, Kistler LM, Kubiak MA, Kubota S, Livi S, Lugaz N, Lee CO, Luhmann J, Matthaeus W, Mitchell DG, Mitchell JG, Moebius E, Pope S, Provornikova E, Rankin JS, Reisenfeld DB, Reno C, Richardson JD, Russell CT, Shaw-Lecerf MM, Scherrer J, Skoug RM, Shen MM, Spence HE, Sternovsky Z, Strumik M, Szalay JR, Tapley M, Tokumaru M, Turner DL, Weidner S, Westlake J, Wurz P, Zank GP.   +57 more
europepmc   +1 more source

From Foreshock 30-Second Waves to Magnetospheric Pc3 Waves. [PDF]

Space Sci Rev
Turc L, Takahashi K, Kajdič P, Kilpua EKJ, Sarris T, Palmroth M, Soucek J, Pfau-Kempf Y, Dimmock A, Takahashi N.   +9 more
europepmc   +1 more source

Combined Surface Flux Transport and Helioseismic Far-Side Active Region Model (FARM). [PDF]

Sol Phys
Yang D, Heinemann SG, Cameron RH, Gizon L.   +3 more
europepmc   +1 more source

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Coronal holes as sources of solar wind

Solar Physics, 1976
We investigate the association of high-speed solar wind with coronal holes during the Skylab mission by: (1) direct comparison of solar wind and coronal X-ray data; (2) comparison of near-equatorial coronal hole area with maximum solar wind velocity in the associated streams; and (3) examination of the correlation between solar and interplanetary ...
A J Lazarus, A S Krieger, Nolte J T
exaly   +2 more sources

Observations of the solar wind from coronal holes

Space Science Reviews, 1994
The solar wind emanating from coronal holes (CH) constitutes a quasi-stationary flow whose properties change only slowly with the evolution of the hole itself. Some of the properties of the wind from coronal holes depend on whether the source is a large polar coronal hole or a small near-equatorial hole.
Neugebauer M
exaly   +2 more sources

Investigation of Solar Rotation Using Coronal Holes

Astrophysics, 2015
The rotation of the solar coronal holes was studied. Data from the Kitt Peak Observatory in the line 10830 A He I for 2003—2012 was used for this purpose. The rotation of 434 coronal holes in the latitude interval ±40° was studied. The maximum angular velocity is observed at latitudes ±15°.
Bidzina Chargeishvili, D R Japaridze
exaly   +2 more sources

Peculiar Features in the Solar Coronal Hole Occurrence

Solar Physics, 2002
A good knowledge of coronal hole (CH) evolution in time is relevant for the understanding of the decay and/or the stability of large-scale magnetic fields in the different heliographic latitudinal belts. Using a CH catalogue, mainly compiled from the He I line (10830 Å) measurement (Sanchez-Ibarra and Barraza-Paredes, 1992, and updated from the NOAA ...
Hofer M.Y., Storini M.
openaire   +2 more sources

Alfvén waves in the solar polar coronal holes

AIP Conference Proceedings, 1999
We study the variation of the line width and electron density as a function of height above two coronal holes from forbidden spectral lines of Si VIII. The spectra were obtained with the Solar Ultraviolet Measurements of Emitted Radiation spectrometer flown on the Solar and Heliospheric Observatory spacecraft.
Banerjee, D., Teriaca, L., Doyle, J., Wilhelm, K.   +3 more
openaire   +2 more sources

Detecting coronal holes for solar activity modeling

2014 48th Asilomar Conference on Signals, Systems and Computers, 2014
Solar image analysis relies on the detection of coronal holes for predicting disruptions to earth's magnetic field. This paper introduces a level-set method for detecting coronal holes based on the processing of extreme ultra-violet images (EUVI) and magnetic images.
Marios S. Pattichis, Venkatesh Jatla, Rachel A. Hock, Carl J. Henney, Charles N. Arge   +4 more
openaire   +1 more source

Coronal holes and solar magnetic fields

Space Science Reviews, 1979
Since 1972, nearly continuous observations of coronal holes and their associated photospheric magnetic fields have been made using a variety of satellite and ground-based equipment. The results of comparisons of these observations are reviewed and it is demonstrated that the structure and evolution of coronal holes is basically governed by the large ...
John W. Harvey, Neil R. Sheeley
openaire   +1 more source