the Sun / AR 9885 / Rajaguru S. P. / A. C. Birch NorthWest Research Associates / /
Country
Australia / / /
Facility
Heliospheric Observatory / /
IndustryTerm
measured travel times / travel-time maps / umbral travel-time perturbations / spot groups / observed travel-time perturbations / travel-time inversions / sunspot / mode kinetic energy / observed travel times / travel-time increases / fractional travel-time perturbations / travel-time perturbation resulting / equivalent travel-time perturbation / positive travel-time perturbation / mean travel-time perturbations / phase-coherent imaging / mean travel-time perturbation / travel times / show travel-time maps / travel-time reductions / travel-time observations / mean group travel-time / p-mode travel times / travel-time perturbations / mean travel-time perturbations dt / 3D travel-time inversions / /
Organization
National Science Foundation / National Oceanic and Atmospheric Administration / National Aeronautics and Space Administration / American Astronomical Society / /
The Astrophysical Journal, 647: L187–L190, 2006 August 20 䉷 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A. OBSERVED FREQUENCY VARIATIONS OF SOLAR p-MODE TRAVEL TIMES AS EVIDENCE FOR S