Computer Science – Performance
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..358..193n&link_type=abstract
Solar Polarization 4, ASP Conference Series, Vol. 358, Proceedings of the conference held 19-23 September, 2005, in Boulder, Col
Computer Science
Performance
2
Scientific paper
We present information on two spectral lines, Fe I 6173 Å and Ni I 6768 Å, that were candidates for use in the Helioseismic and Magnetic Imager (HMI) instrument. Both Fe I and Ni I profiles have clean continuum and no blends that threaten performance. The higher Landé factor of Fe I means its operational velocity range in regions of strong magnetic field is smaller than for Ne I. Fe I performs better than Ni I for vector magnetic field retrieval. Inversion results show that Fe I consistently determines field strength and flux more accurately than the Ni I line. Inversions show inclination and azimuthal errors are recovered to ≈2° above 600 Mx/cm2 for Fe I and above 1000 Mx/cm2 for Ni I. The Fe I line was recommended, and ultimately chosen, for use in HMI.
Bush Rock I.
Lites Bruce W.
Liu Ya-Ying
López Ariste Arturo
Norton Andrew
No associations
LandOfFree
Spectral Line Selection for HMI does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spectral Line Selection for HMI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral Line Selection for HMI will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1240976