A detailed abundance analysis is presented for solar oxygen based on the ensuremathΔV=1 fundamental (4.6åisebox-0.5ex~ensuremathμm) and ensuremathΔV=2 (2.3i̊sebox-0.5ex~ensuremathμm) first- overtone rovibrational bands of carbon monoxide observed …
SOLIS (Synoptic Optical Long-term Investigations of the Sun) is a project to replace antiquated synoptic observing equipment at the National Solar Observatory. SOLIS includes a suite of three instruments on an equatorial mount originally installed at …
Polarization modulation for solar vector polarimetry can be performed in various ways. Ferroelectric liquid crystals (FLC) have the advantage of allowing modulation frequencies of up to several kHz, therefore avoiding spurious signals due to seeing. …