HR: 14:45h
AN: SP23C-05    [Abstracts]
TI: Ring-Diagram Analysis of Data From the Mt Wilson Magneto-Optic Filter
AU: * Rabello-Soares, M C
EM: CSoares@spd.aas.org
AF: Stanford University, CSSA - HEPL Via Pueblo Mall, Stanford, Cal 94305-4085 United States
AU: Bogart, R S
EM: RBogart@spd.aas.org
AF: Stanford University, CSSA - HEPL Via Pueblo Mall, Stanford, Cal 94305-4085 United States
AU: Basu, S
EM: SBasu@spd.aas.org
AF: Yale University, Astronomy Department P. O. Box 208101, New Haven, Con 06520-8101 United States
AU: Haber, D A
EM: DHaber@spd.aas.org
AF: JILA / University of Colorado, Mail Stop 440-UCB, Boulder, Col 80309-0440 United States
AU: Rhodes, E J
EM: ERhodes@spd.aas.org
AF: University of Southern California, Dept of Physics and Astronomy Mail Code 32, Los Angeles, Cal 90089 United States
AU: Rose, P
EM: perryros@usc.edu
AF: University of Southern California, Dept of Physics and Astronomy Mail Code 32, Los Angeles, Cal 90089 United States
AB: Full-disc high-resolution (4") Doppler data are available at a one-minute cadence on a near-daily basis from the Magneto-Optic Filter on the Mt Wilson 60-ft Tower Telescope from 1988 onwards. Although coming from an instrument that is less stable than the space-based MDI and has a lower duty cycle than the 6-site GONG+ network, the Mt Wilson series is virtually the sole source of data extending back before 1996 to which the techniques of local-area heleioseismology might be usefully applied. Ring-diagram analysis, which in many respects is just an extension of the techniques of high-degree global-mode helioseismology, is particularly promising for these data. Here we report on initial analyses of selected time samples from the Mt Wilson data series, comparing them where possible with results obtained from other data sources during periods of overlap.
UR: http://rick.stanford.edu/pubs/spd05/mwo/
DE: 7522 Helioseismology
SC: Solar Physics Division - AAS [SP]
MN: 2005 Joint Assembly