Relationship between polarization and intensity of the green line in different coronal structures

Details Relationship between polarization and intensity of the green line in different coronal structures Relationship between polarization and intensity of the green line in different coronal structures

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...349..295b&link_type=abstract

Astronomy and Astrophysics, v.349, p.295-300 (1999)

Astronomy and Astrophysics

Astrophysics

6

Eclipses, Sun: Corona, Polarization, Magnetic Fields

Scientific paper

The effect of anticorrelation between the polarization and intensity of the coronal green line Fe XIV 530.3 nm, revealed by the July 11, 1991 eclipse observations, is investigated. To simplify the general character of this effect, we have created the diagrams p versus log I_λ for the points inside a narrow ring, at fixed distances from the solar disk centre. In this case, the global anticorrelation dependence disintegrated into two branches with `a void zone' between them. The subsequent analysis has shown that the points, corresponding to the individual coronal structures of different types, are clustered in specific places of the diagram. While the upper branch is related to the huge high-latitude streamers, the lower branch contains the equatorial coronal condensations of different brightness. These branches are best evident at the distance ~ 1.2 R_sun, and they vary with the distance from the disk centre. Model calculations, performed within the scope of generally accepted concepts, cannot explain the observed peculiarities of the anticorrelation dependence, in particular, the presence of the gap between the two branches. The way out of these difficulties could be sought in assuming that the coronal magnetic field affects the generation of the polarized radiation in the emission green line.

Affiliated with

Also associated with

No associations

Rating

Relationship between polarization and intensity of the green line in different coronal structures 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 Relationship between polarization and intensity of the green line in different coronal structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relationship between polarization and intensity of the green line in different coronal structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1766047