Mangeto-optical effects in sunspots and their vector magnetic field

Details Mangeto-optical effects in sunspots and their vector magnetic field Mangeto-optical effects in sunspots and their vector magnetic field

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983cha%26a...7..255y&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 7, Issue 4, p. 255-260.

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

The system of transfer equations of the four Stokes parameters I, Q, U, V under the action of the magneto-optical effect (i.e. the Unno-Beckers equations) are numerically solved in this paper for the magneto-sensitive lines FeI λλ 6302.499 and 5324.191 using an appropriate sunspot model. The errors in the expressions for the coefficients ϱr and ϱW in Beckers' paper [2] have been corrected for. From the results of calculations, features of the profiles of the Stokes parameters dependent on the magnetic vector have been isolated. Our computations also show that the magneto-optical effect should be taken into consideration in the measurement of the vector magnetic fields.
In the fourth section of this paper we have established a simple and convenient method for obtaining-information on the magnetic vector (including the field strength B, its inclination to the line of sight γ and its azimuth χ) from the profiles of the Stokes parameters. It consists of three steps: (1) The value of B is determined from the distance of the highest point in the V-profile from the central line. (2) γ is then found from Vmax, i.e maximum value of V. (3) Lastly, the angle χ is found from Q0, i.e. the value of Q at line centre.

Affiliated with

Also associated with

No associations

Rating

Mangeto-optical effects in sunspots and their vector magnetic field 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 Mangeto-optical effects in sunspots and their vector magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mangeto-optical effects in sunspots and their vector magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1802840