TY - GEN AU - Tong,C H TI - Imaging sunspots using helioseismic methods SN - 1364-503X PY - 2006///0120 KW - Astronomy KW - methods KW - Gases KW - chemistry KW - Geology KW - Hot Temperature KW - Image Interpretation, Computer-Assisted KW - Oscillometry KW - Rheology KW - Solar Activity KW - Solar System KW - Vibration N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review UR - https://doi.org/10.1098/rsta.2005.1647 ER -