HR: 11:35h
AN: SH42A-05    [Abstracts]
TI: Imaging Coronal Mass Ejections in the Heliosphere using the STEREO Heliospheric Imagers
AU: * Harrison, R A
EM: r.harrison@rl.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Davis, C J
EM: c.j.davis@rl.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Eyles, C J
EM: cje@star.bham.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Eyles, C J
EM: cje@star.bham.ac.uk
AF: School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, United Kingdom
AU: Bewsher, D
EM: d.bewsher@rl.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Crothers, S
EM: s.crothers@rl.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Davies, J A
EM: j.a.davies@rl.ac.uk
AF: Space Science and Technology Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
AU: Howard, R A
EM: russ.howard@nrl.navy.mil
AF: Space Science Division, Naval Research Laboratory, Washington DC, 20375, United States
AU: Moses, D J
EM: moses@nrl.navy.mil
AF: Space Science Division, Naval Research Laboratory, Washington DC, 20375, United States
AU: Halain, J
EM: jphalain@ulg.ac.be
AF: Centre Spatial de Liege, Universtte de Liege, ave Pre Aily, Liege, B-4031, Belgium
AB: We present images of Coronal Mass Ejections in the heliosphere, tracked from the outer corona to Earth-like distances, from the first months of the scientific operation of the Heliospheric Imagers (HI) aboard the NASA STEREO spacecraft. The HI instruments are wide-angle imaging systems designed to detect CMEs in the heliosphere, in particular, for the first time, observing the propagation of such events along the Sun-Earth line. These early results show that despite severe technical challenges in their design and implementation, the HI instruments can successfully detect CMEs in the heliosphere and this is an extremely important milestone for CME research. Among the early results, we show a number of CME events, demonstrating the ability to extract the F-coronal intensity distribution, and to track a CME from the corona to the Earth. Early investigations of the velocity profiles of CMEs as they propagate through the heliosphere and of their basic structure will be presented.
DE: 2101 Coronal mass ejections (7513)
DE: 2111 Ejecta, driver gases, and magnetic clouds
DE: 2194 Instruments and techniques
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting