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Modeling the Sun’s Magnetic Field and Irradiance since 1713
We use a flux transport model to simulate the evolution of the Sun's total and open magnetic flux over the last 26 solar cycles (1713-1996). Polar field reversals are maintained by varying theExpand
Solar wind speed and coronal flux-tube expansion
The hypothesis that the solar wind speed at 1 AU and the rate of magnetic flux-tube expansion in the corona are inversely correlated is shown to be consistent with observations extending over theExpand
Measurements of Flow Speeds in the Corona between 2 and 30 R sub sun
Time-lapse sequences of white-light images, obtained during sunspot minimum conditions in 1996 by the Large Angle Spectrometric Coronagraph on the Solar and Heliospheric Observatory, give theExpand
Continuous tracking of coronal outflows : Two kinds of coronal mass ejections
We have developed a new technique for tracking white-light coronal intensity features and have used this technique to construct continuous height/time maps of coronal ejecta as they move outwardExpand
Properties of coronal mass ejections: SOHO LASCO observations from January 1996 to June 1998
We report the properties of all the 841 coronal mass ejections (CMEs) observed by the Solar and Heliospheric Observatory (SOHO) Large Angle Spectroscopic Coronagraph (LASCO) C2 and C3 white-lightExpand
Average properties of bipolar magnetic regions during sunspot cycle 21
We examine the statistical properties of some 2700 bipolar magnetic regions (BMRs) with magnetic fluxes ≥3 × 1020 Mx which erupted during 1976–1986. Empirical rules were used to estimate the fluxesExpand
The observation of a coronal transient directed at earth
The paper reports the observation of a large coronal transient that can only be interpreted as a three-dimensional structure. Its form is one which has not been observed before: a graduallyExpand
Coronal mass ejections - 1979-1981
In an examination of the Solwind coronagraph images obtained during the interval March 28, 1979, to December 31, 1981, we have identified 998 coronal mass ejections and recorded their structuralExpand
On potential field models of the solar corona
The current-free approximation has been widely used to infer the magnetic structure of the solar corona from magnetograph observations. In such calculations, the potential field is usually matchedExpand
Observations of Correlated White-Light and Extreme-Ultraviolet Jets from Polar Coronal Holes
Time-lapse sequences of white-light images recorded with the Large Angle Spectrometric Coronagraph (LASCO) on the Solar and Heliospheric Observatory (SOHO) frequently show long, narrow structuresExpand