The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers

Details The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9520641w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Dec. 1, 1990, p. 20641-20661.

Physics

32

Helios 2, Heliosphere, Solar Activity, Stellar Mass Ejection, Geomagnetism, Interplanetary Magnetic Fields, Photometers, Solar Corona, Solar Cycles, Solar Magnetic Field, Zodiacal Light

Scientific paper

Observations were obtained using the three zodiacal light photometers of the Helios 2 spacecraft in order to identify coronal mass ejections (CMEs) in the interplanetary medium, to establish their heliospheric characteristics, to compare them with those of CMEs observed near the sun, and to determine the frequency of occurrence of CMEs from 1976 through 1979. Eighty percent of the white light transients are be classified as CMEs moving outward from the sun. The average CME is found to have a brightness increase of 2.3 S10 units in the 90-deg photometer, an average duration of 37 h, and a speed of about 500 km/s, implying a radial 'flow' dimension of about 0.4 AU, and a longitudinal width near the sun of about 50 deg. The CMEs supply significant amounts of mass to the inner heliosphere, especially around the maximum phase of solar activity. During the rise of the last solar activity cycle, the CME occurrence rate increased by an order of magnitude between cycle minimum and maximum.

Affiliated with

Also associated with

No associations

Rating

The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The identification and characteristics of solar mass ejections observed in the heliosphere by the HELIOS 2 photometers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1631601