Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...389..624g&link_type=abstract
Astronomy and Astrophysics, v.389, p.624-628 (2002)
Astronomy and Astrophysics
Astrophysics
3
Sun: Activity, Sun: Rotations, Sun: Radio Radiation
Scientific paper
An analysis of solar rotation as a function of heliographic latitude and time is made using daily radio maps of the Sun at the wavelength of 1.76 cm. Variations of the velocity as a function of the latitude during the period 1992-2001 have been studied. The mean synodical rotation rate of the intensity features is best fit by ω = 13.41 - 1.66\sin2 θ -2.19 \sin4 θ (deg/day) where theta is the latitude. We have found alternating bands of faster and slower rotation. They travel from higher latitudes towards the equator during the current solar cycle. Radio observations with high accuracy and reliability thus confirm the reality of torsional oscillations in the higher levels of the solar atmosphere.
Gelfreikh George B.
Makarov Valentin I.
Riehokainen A.
Shibasaki Kazuo
Tlatov Andrej G.
No associations
LandOfFree
A study of development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. II. Dynamics of the differential rotation of the Sun 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 A study of development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. II. Dynamics of the differential rotation of the Sun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A study of development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. II. Dynamics of the differential rotation of the Sun will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-958896