HR: 0800h
AN: SH21A-0288    [Abstracts]
TI: Observing the Influence of Alfven Waves on the Energetics of the Quiet Solar Corona and Solar Wind
AU: * McIntosh, S W
EM: mcintosh@boulder.swri.edu
AF: Southwest Research Institute, Department of Space Studies 1050 Walnut St, Suite 300, Boulder, CO 80302, United States
AU: * McIntosh, S W
EM: mcintosh@boulder.swri.edu
AF: High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307, United States
AU: De Pontieu, B
EM: bdp@lmsal.com
AF: Lockheed Martin Solar & Astrophysics Laboratory, 3251 Hanover St., Org. ADBS, Bldg. 252, Palo Alto, CA 94304, United States
AU: Tomczyk, S
EM: tomczyk@hao.ucar.edu
AF: High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307, United States
AB: We will present and discuss recent observations of Alfvén waves in the solar chromosphere, from the Solar Optical Telescope (SOT) on Hinode, and in the corona, from HAO's ground-based Coronal Multi-channel Polarimeter (CoMP). These observations unambiguously demonstrate, for the first time, that the magnetic chromosphere and corona are riddled with 3- and 5-minute (3-5mHz) Alfvénic oscillations predominantly propagating outward into the heliosphere. The combined analysis of these observations, augmented by spectroscopic data from SOHO/SUMER, provide a compelling look at the influence and importance of ubiquitously driven Alfvén waves in heating the quiet solar corona and driving the solar wind. Indeed, we believe that these direct observations of a low-frequency wave input must provoke a re-evaluation of solar wind acceleration by high frequency (kHz) ion-cyclotron modes.
DE: 7507 Chromosphere
DE: 7509 Corona
DE: 7524 Magnetic fields
DE: 7546 Transition region
DE: 7836 MHD waves and instabilities (2149, 2752, 6050)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting