The presence of a systematic error in SDO/HMI data | Zendy

G. V. Rudenko | Zendy; Ирина Дмитриенко | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

The presence of a systematic error in SDO/HMI data

Author(s) -

G. V. Rudenko,

Ирина Дмитриенко

Publication year - 2018

Publication title -

solar-terrestrial physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.11

H-Index - 2

ISSN - 2500-0535

DOI - 10.12737/stp-42201801

Subject(s) - systematic error , magnetic field , physics , knot (papermaking) , observatory , astrophysics , computational physics , mathematics , statistics , materials science , quantum mechanics , composite material

In this paper, we came to the conclusion that there is a systematic error in SDO/HMI (Helioseismic and Magnetic Imager aboard the Solar Dynamics Observatory) vector magnetic data, which reveals itself in a deviation from the radial direction of the knot magnetic fields manifesting themselves on magnetograms in the form of small grains in a strong magnetic field. This deviation demonstrates a dependence on the distance to the disk center, which cannot be a property of the magnetic field – it can only be artificially introduced into the data. We suggest a simple method for correcting vector magnetograms, which eliminates the detected systematic error.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research