HR: 1330h
AN: SH13C-04    [Abstracts]
TI: Travel Time and Phase Analysis of Waves in the Lower Solar Chromosphere
AU: * Fleck, B
EM: bfleck@esa.nascom.nasa.gov
AF: ESA Research and Scientific Support Department, c/o NASA/GSFC Mailcode 682.3, Greenbelt, MD 20771 United States
AU: Armstrong, J
AF: Maui Scientific Research Center / Univ. of New Mexico, 590 Lipoa Pkwy, Ste 262, Kihei, HI 96753 United States
AU: Cacciani, A
AF: Universita degli Studi di Roma "La Sapienza", Dipartimento di Fisica Piazzale Aldo Moro 2, Rome, 00185 Italy
AU: De Pontieu, B
AF: Lockheed Martin Solar and Astrophysics Lab, Bldg. / 252 Org./ L9-41 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Finsterle, W
AF: Physikalisch-Meteorologisches Observatorium/World Radiation Center, Dorfstr. 33, Davos Dorf, 7260 Switzerland
AU: Jefferies, S M
AF: Maui Scientific Research Center / Univ. of New Mexico, 590 Lipoa Pkwy, Ste 262, Kihei, HI 96753 United States
AU: McIntosh, S W
AF: Southwest Research Institute, Department of Space Studies 1050 Walnut Street, Suite 400, Boulder, CO 80302 United States
AU: Tarbell, T D
AF: Lockheed Martin Solar and Astrophysics Lab, Bldg. / 252 Org./ L9-41 3251 Hanover Street, Palo Alto, CA 94304 United States
AB: In an effort to better understand how the chromospheric plasma and magnetic fields are guiding, converting and dissipating acoustic waves, we analyze high-cadence time series taken in Na I D2 589.0 nm and K I 769.9 nm that were obtained with the Magneto Optical Filters at Two Heights (MOTH) experiment at the South Pole in January 2003. These data are complemented by a very high spatial resolution time series taken in Na D with the Swedish Vacuum Solar Telescope in June 1992. The travel time maps, power maps, and phase diagrams show some unexpected behaviour, in particular in and around active regions.
DE: 7500 SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY
DE: 7507 Chromosphere
DE: 7522 Helioseismology
DE: 7529 Photosphere
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2005 Joint Assembly