HELIOS images of coronal mass ejections

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6167264

Jackson, B V

The zodiacal light photometers on board the HELIOS spacecraft can be used to form images of coronal mass ejections in the interplanetary medium. Several aspects of these data are unique: they trace coronal mass ejections using Thomson-scattering techniques to distances from the Sun greater than 0.5 AU; their perspective from the HELIOS orbits allow information to be gained about the three-dimensional shapes of specific mass ejections viewed both by coronagraphs and HELIOS; the global view afforded by the spacecraft photometers can image the mass ejection from within and thus relate in situ measurements to the shape of the whole structure. To date, the HELIOS photometers have been used to study coronagraph-observed mass ejections including those which originated at the Sun on 7 May, 24 May and 27 November 1979, and 21 May, 18 June, 29 June and 5 November 1980.

• Research Organization: California Univ., San Diego (USA)
• OSTI ID: 6167264
• Report Number(s): AD-A-181118/1/XAB
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
INTERPLANETARY SPACE
MAIN SEQUENCE STARS
MASS
MASS TRANSFER
MEASURING INSTRUMENTS
ORBITS
PHOTOMETERS
SATELLITES
SHAPE
SOLAR ACTIVITY
SOLAR CORONA
SPACE
STARS
STELLAR ATMOSPHERES
STELLAR CORONAE
SUN