The thermospheric auroral red line polarization: confirmation of detection and first quantitative analysis
The thermospheric atomic oxygen red line is among the brightest in the auroral spectrum.Previous observations in Longyearbyen, Svalbard, indicated that it may be intrinsically polarized, but a possible contamination by light pollution could not be ruled out.During the winter 2010/2011, the polarization of the red line was measured for the first tim