Solar Dynamics Observatory, SDO |
Solar Dynamics Observatory, SDO |
Feb 7 2006, 07:05 PM
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Astrophysics, abstract
astro-ph/0602130 From: Juan Manuel Borrero [view email] Date: Mon, 6 Feb 2006 17:26:43 GMT (28kb) Magnetic field vector retrieval with HMI Authors: J.M. Borrero, S. Tomczyk, A. Norton, T. Darnell, J. Schou, P. Scherrer, R. Bush, Y. Lui Comments: 4 pages, 2 figures. to appear in the proceedings of the Solar Polarizaton Workshop IV The Helioseismic and Magnetic Imager (HMI), on board the Solar Dynamics Observatory (SDO), will begin data acquisition in 2008. It will provide the first full disk, high temporal cadence observations of the full Stokes vector with a 0.5 arc sec pixel size. This will allow for a continuous monitoring of the Solar magnetic field vector. HMI data will advance our understanding of the small and large-scale magnetic field evolution, its relation to the solar and global dynamic processes, coronal field extrapolations, flux emergence, magnetic helicity and the nature of the polar magnetic fields. We summarize HMI's expected operation modes, focusing on the polarization cross-talk induced by the solar oscillations and how this affects the magnetic field vector determinations. http://arxiv.org/abs/astro-ph/0602130 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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