Results 31 to 40 of about 242,574 (198)

The 27-Day Oscillation in Ionospheric Total Electron Content Observed by GNSS

Atmosphere
The 27-day oscillation in total electron content (TEC) is analysed by means of world maps of TEC. The TEC maps are derived from measurements of the ground receiver network of the Global Navigation Satellite System (GNSS) and are provided by the ...
Klemens Hocke, Guanyi Ma
doaj   +1 more source

The Rotation Of The Deep Solar Layers

, 2003
From the analysis of low-order GOLF+MDI sectoral modes and LOWL data (l > 3), we derive the solar radial rotation profile assuming no latitudinal dependance in the solar core.
C. J. Henney, Corbard T., Eff-Darwich A., Henney C. J., R. A. Garca, S. Couvidat, S. Jimnez-Reyes, S. Turck-Chize, T. Corbard   +8 more
core   +2 more sources

Differential rotation measurement of soft X-Ray corona

, 2010
The aim of this paper is to study the latitudinal variation in the solar rotation in soft X-ray corona. The time series bins are formed on different latitude regions of the solar full disk (SFD) images that extend from 80 degree South to 80 degree North.
Acton, Altrock, Altrock, Balthasar, Beck, Brajša, Chandra, Fisher, Hansen, Hari Om Vats, Howard, K. N. Iyer, Kane, Karachik, Kariyappa, Kozuka, Lewis, Satish Chandra, Sime, Snodgrass, Snodgrass, Timothy, Tsuneta, Vats, Vats, Weber, Weber   +26 more
core   +1 more source

Automatic detection and tracking of filaments for a solar feature database [PDF]

Annales Geophysicae, 2008
A new method for the automatic detection and tracking of solar filaments is presented. The method addresses the problems facing existing catalogs, such as the one developed recently in the frame of the European Grid of Solar Observations (EGSO ...
J. Aboudarham, I. Scholl, I. Scholl, N. Fuller, M. Fouesneau, M. Galametz, F. Gonon, A. Maire, Y. Leroy   +8 more
doaj   +1 more source

THE ASYMMETRIC DRIFT AND THE ROTATION CURVE OF THE GALAXY

Odessa Astronomical Publications, 2014
Asymmetric drift in the solar neighbourhood is studied by the means of the RAVE data. The asymmetric drift correction is applied to the SDSS data to measure the rotation curve of the Milky Way in the extended solar neighbourhood.
O. Golubov
doaj   +1 more source

Spectral analysis of auroral geomagnetic activity during various solar cycles between 1960 and 2014 [PDF]

Annales Geophysicae, 2016
In this paper we use wavelets and Lomb–Scargle spectral analysis techniques to investigate the changing pattern of the different harmonics of the 27-day solar rotation period of the AE (auroral electrojet) index during various phases of different ...
P. B. Kotzé
doaj   +1 more source

Solar Internal Rotation [PDF]

Symposium - International Astronomical Union, 1998
With the flood of high quality helioseismic data from the instruments on the SOHO spacecraft (MDI/VIRGO/GOLF) and ground based instruments (e.g. GONG, LOWL, BiSON, IRIS, MWO-CrAO and TON) we have been able to get increasingly detailed information on the rotation and other large scale flows in the solar interior.Here we will discuss some of the ...
openaire   +1 more source

Statistical properties of coronal hole rotation rates: Are they linked to the solar interior?

, 2017
The present paper discusses results of a statistical study of the characteristics of coronal hole (CH) rotation in order to find connections to the internal rotation of the Sun.
Bagashvili, Salome R., Chargeishvili, Bidzina B., De Causmaecker, Patrick, Japaridze, Darejan R., Khodachenko, Maxim L., Kosovichev, Alexander G., Kukhianidze, Vasil, Poedts, Stefaan, Ramishvili, George, Shergelashvili, Bidzina M., Zaqarashvili, Teimuraz V.   +10 more
core   +1 more source

From solar-like to anti-solar differential rotation in cool stars [PDF]

, 2013
Stellar differential rotation can be separated into two main regimes: solar-like when the equator rotates faster than the poles and anti-solar when the polar regions rotate faster than the equator.
Gastine, T., Morin, J., Reiners, A., Wicht, J., Yadav, R. K.   +4 more
core   +3 more sources

2D dynamics of the radiative core of low mass stars

EPJ Web of Conferences, 2017
Understanding the internal rotation of low mass stars all along their evolution is of primary interest when studying their rotational dynamics, internal mixing and magnetic field generation.
Hypolite Delphine, Mathis Stéphane, Rieutord Michel   +2 more
doaj   +1 more source