[37.07] Halo CMEs in the Ultraviolet

AAS 200th meeting, Albuquerque, NM, June 2002
Session 37. CMEs and Prominences
Display, Tuesday, June 4, 2002, 10:00am-6:30pm, SW Exhibit Hall

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[37.07] Halo CMEs in the Ultraviolet

J.C. Raymond (Center for Astrophysics), A. Ciaravella (Osservatorio Astronomico di Palermo), A.A. van Ballegooijen (Center for Astrophysics)

Halo CMEs are especially important for connecting remote sensing observations with in situ measurements, as well as for Space Weather. However, analysis of coronagraphic observations of halo CMEs is complicated by relatively severe projection effects. We discuss the use of Doppler shifts to constrain CME structure and evolution along the line-of-sight, and we discuss the excitation of UV emission lines at high velocities and large heights above the Sun.

This work was supported by NASA Grant NAG5-11420.

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