The rotation of calcium plages in the years 1967-1970

Details The rotation of calcium plages in the years 1967-1970 The rotation of calcium plages in the years 1967-1970

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..105..197t&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 105, May 1986, p. 197-204.

Physics

13

Calcium, Faculae, Solar Rotation, Chromosphere, Solar Cycles

Scientific paper

Ca II spectroheliograms obtained at Catania Observatory for the 1967-1970 period are examined, and the latitudinal differential rotation profile of chromospheric plages in the first four days of lifetime was found to be steeper than the average profile determined from the whole solar cycle. The rigidity of rotation is shown to increase with the object's age, with plages lying around the Equator and in the strips of latitude between 15 and 25 deg slowing down, while the ones lying poleward more than + or - 30 deg accelerate. A correspondence between the locations of both speeding-up plages with westward streams, and slowing down plages with eastward streams, is noted. The results are consistent with the existence of deep layers affected by a differential rotation latitudinal profile which is steeper than that of surface layers and which tends to flatten during the decay phase of the solar activity cycle.

Affiliated with

Also associated with

No associations

Rating

The rotation of calcium plages in the years 1967-1970 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 The rotation of calcium plages in the years 1967-1970, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The rotation of calcium plages in the years 1967-1970 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1776472