engleski

Projection effects in coronal mass ejections studied with STEREO and SoHO

The STEREO mission consists of two identical satellites, positioned ahead (A) and behind (B) the Earth, which observe the Sun from viewing angles different from that of LASCO aboard SoHO (positioned at L1). The kinematics (speed) and width of a coronal mass ejection (CME) is derived by measuring distinct CME features observed in projection against the plane of sky. As STEREO-A, STEREO-B, and LASCO/SoHO, observe a CME from three different viewing angles, the resulting CME kinematics and widths differ. By combining the observations from the three satellites we study for several well observed CMEs the importance of projection effects for the CME kinematics and expansion.

Coronal mass ejections

nije evidentirano