The solar cycle variation of coronal mass ejections and the solar wind mass flux

Coronal mass ejections (CMEs) are an important aspect of coronal physics and a potentially significant contributor to perturbations of the solar wind, such as its mass flux. Sufficient data on CMEs are now available to permit study of their longer-term occurrence patterns. Here we present the results of a study of CME occurrence rates over more than a complete 11-year solar sunspot cycle and a comparison of these rates with those of other activity related to CMEs and with the solar wind particle flux at 1 AU. The study includes an evaluation of corrections to the CME rates, which include instrument duty cycles, visibility functions, mass detection thresholds, and geometrical considerations. The main results are as follows: (1) The frequency of occurrence of CMEs tends to track the solar activity cycle in both amplitude and phase; (2) the CME rates from different instruments, when corrected for both duty cycles and visibility functions, are reasonably consistent; (3) considering only longer-term averages, no one class of solar activity is better correlated with CME rate than any other; (4) the ratio of the annualized CME to solar wind mass flux tends to track the solar cycle; and (5) near solar maximum, CMEs can provide a significant fraction (i.e., ≈ 15%) of the average mass flux to the near-ecliptic solar wind.

[1]  S. Kahler.  Gradual hard X-ray events and second phase particle acceleration , 1984 .

[2]  W. Feldman,et al.  Long-term variations of selected solar wind properties - IMP 6, 7, and 8 results , 1978 .

[3]  D. Webb.  The solar sources of coronal mass ejections , 1992 .

[4]  A. Hundhausen,et al.  Coronal mass ejections observed during the Solar Maximum Mission: Latitude distribution and rate of occurrence , 1984 .

[5]  R. Howard,et al.  The Solar Cycle Dependence of Coronal Mass Ejections , 1986 .

[6]  A. Hundhausen,et al.  Disruption of a coronal streamer by an eruptive prominence and coronal mass ejection , 1986 .

[7]  D. Sime.  Coronal Transients at High Heliographic Latitudes , 1986 .

[8]  W. Feldman,et al.  An analysis of shock wave disturbances observed at 1 AU from 1971 through 1978 , 1982 .

[9]  E. Cliver,et al.  Solar cycle variation of long duration 10.7 cm and soft X-ray bursts , 1988 .

[10]  B. Jackson,et al.  A CME mass distribution derived from SOLWIND coronagraph observations , 1993 .

[11]  L. Burlaga,et al.  Interplanetary magnetic clouds at 1 AU , 1982 .

[12]  R. Howard,et al.  Characteristics of flares producing metric type II bursts and coronal mass ejections , 1984 .

[13]  R. Schwenn,et al.  The `average' solar wind in the inner heliosphere: structures and slow variations , 1983 .

[14]  B. Jackson,et al.  Forerunners: Outer rims of solar coronal transients , 1978 .

[15]  R. MacQueen,et al.  The association of coronal mass ejection transients with other forms of solar activity , 1979 .

[16]  H. Rosenbauer,et al.  Coronal mass ejections and interplanetary shocks , 1985 .

[17]  R. Howard,et al.  The observation of a coronal transient directed at earth , 1982 .

[18]  A. Hundhausen,et al.  Observation of a coronal transient from 1.2 to 6 solar radii , 1985 .

[19]  S. Kahler.  Solar Flares and Coronal Mass Ejections , 1992 .

[20]  R. Harrison.  Coronal mass ejection , 1991, Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences.

[21]  R. Stewart,et al.  Associations between coronal mass ejections and metric type II bursts , 1984 .

[22]  Russell A. Howard,et al.  Coronal mass ejections - 1979-1981 , 1985 .

[23]  R. Stewart,et al.  Observation of a Coronal Disturbance from 1 to 9 R , 1974 .

[24]  O. C. St. Cyr,et al.  Sungrazing comets observed by the solar maximum mission coronagraph , 1991 .

[25]  B. Jackson,et al.  Coronal mass ejection associated with the stationary post-flare arch of 21–22 May 1980 , 1986 .

[26]  D. Sime.  Coronal mass ejection rate and the evolution of the large-scale K-coronal density distribution , 1989 .

[27]  A. Poland,et al.  Frequency of coronal transients and solar activity , 1976 .

[28]  A. Hundhausen.  The Origin and Propagation of Coronal Mass Ejections (R) , 1987 .

[29]  S. Kahler.  The morphological and statistical properties of solar X-ray events with long decay times , 1977 .

[30]  Allan D. Woodbury,et al.  On the thermal effects of three‐dimensional groundwater flow , 1985 .

[31]  A. Poland,et al.  Mass flow in loop type coronal transients , 1979 .

[32]  R. Howard,et al.  Associations between coronal mass ejections and soft X-ray events , 1983 .

[33]  E. Hildner,et al.  The speeds of coronal mass ejection events , 1976 .

[34]  R. MacQueen,et al.  The propagation of coronal mass ejection transients , 1986 .

[35]  D. Webb.  Erupting prominences and the geometry of coronal mass ejections , 1988 .

[36]  Bernard V. Jackson,et al.  Helios spacecraft and Earth perspective observations of three looplike solar mass ejection transients , 1985 .

[37]  S. Kahler.  Coronal mass ejections , 1987 .

[38]  N. Sheeley,et al.  Energetic interplanetary shocks, radio emission, and coronal mass ejections , 1987 .

[39]  Bernard V. Jackson,et al.  Helios images of solar mass ejections , 1985 .

[40]  T. Kakinuma,et al.  Radio-scintillation observations of interplanetary disturbances , 1984 .

[41]  A. Hundhausen,et al.  Sizes and locations of coronal mass ejections - SMM observations from 1980 and 1984-1989 , 1993 .

[42]  C. Sawyer.  Visibility and rate of coronal mass ejections , 1985 .

[43]  A. Hundhausen,et al.  Activity associated with the solar origin of coronal mass ejections , 1987 .

[44]  H. Cane.  The evolution of interplanetary shocks , 1985 .

[45]  E. Smith.  Observations of interplanetary shocks - Recent progress , 1983 .

[46]  Catalogue of solar filament disappearances 1964-1980 , 1991 .

[47]  R. Howard,et al.  A search for forerunner activity associated with coronal mass ejections , 1987 .

[48]  B. Jackson.  Helios observations of the earthward-directed mass ejection of 27 November, 1979 , 1985 .

[49]  D. Webb.  The solar cycle variation of the rates of CMEs and related activity , 1991 .

[50]  Bernard V. Jackson,et al.  The identification and characteristics of solar mass ejections observed in the heliosphere by the Helios 2 photometers , 1990 .

[51]  W. Feldman,et al.  Plasma and Magnetic Fields from the Sun , 1977 .

[52]  B. Jackson.  Imaging of coronal mass ejections by the HELIOS spacecraft , 1985 .

[53]  Observations of coronal disturbances from 1 to 9 solar radii. I - First event of 1973 January 11 , 1974 .

[54]  C. Cyr,et al.  A Revised and Expanded Catalogue of Mass Ejections Observed by the Solar Maximum Mission Coronagraph , 1993 .

[55]  B. Jackson.  Solar-generated disturbances in the heliosphere , 1992 .

[56]  H. Cane.  The large-scale structure of flare-associated interplanetary shocks , 1988 .

[57]  C. Wright.  On the Longitudinal Distribution of Solar Type II Bursts , 1980, Publications of the Astronomical Society of Australia.