The Wilson Effect in Sunspots

Bibcode
1987rfsm.conf..183C
Collados, M.; del Toro Iniesta, J. C.; Vázquez, M.
Bibliographical reference

The Role of Fine-Scale Magnetic Fields on the Structure of the Solar Atmosphere, Proceedings of the Inaugural workshop and round table discussion for the D-E-S Telescope installations on the Canary Islands, La Laguna, Tenerife, Spain, 6-12 October 1986. Edited by E.-H. Schröter, M. Vázquez, and A.A. Wyller. Cambridge: Cambridge University Press, 1987., p.183

Advertised on:
0
1987
Number of authors
3
IAC number of authors
0
Citations
0
Refereed citations
0
Description
An analysis of the center to limb variation of the geometrical properties of spots has been carried out. It has revealed that spots do not have a symmetrical behaviour with respect to the centre of solar disk. Thus, the Wilson effect is not zero at δ = 0°, but at δ ≡ 45°W. Moreover, the inverse Wilson effect is the general rule in that interval, while the normal phenomenon is maximum at a heliocentric angle of 40° - 50°E.
Type
Non-refereed

It may interest you

  • Non-refereed
    Design and manufacture of athermalized optomechanical mounts for GRANCAIN, the infrared imaging instrument for GTC's adaptive optics
    GRANCAIN (GRAN CAmara INfrarroja) is a first-light imaging instrument in the infrared J, H and K bands that will be integrated into the adaptive optics focus of the Gran Telescopio de Canarias. The purpose of the instrument is to capture SWIR diffraction-limited images for a field of view of 22x22 arcsec. The instrument boasts a telecentric optical
    González-Carretero, Eduardo D. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13100E..6VG
    Citations
    0
  • Non-refereed
    Optical coating facilities at the Instituto de Astrofísica de Canarias
    The Instrumentation Division of the Instituto de Astrofísica de Canarias (IAC) is involved since several years in upgrading its capacities to design and manufacture optical components. To this end, we have created a new laboratory (Centre for Advanced Optical Systems, CSOA) which will be capable to design, fabricate and qualify large optical
    Insausti, M. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13100E..23I
    Citations
    0
  • Non-refereed
    Measuring Rotation Periods and Stellar Oscillations in Red Giants with TESS Data
    TESS is a powerful engine for studying stellar variability. However, it has been challenging to adopt methods used for other space missions, such as Kepler, to infer rotation periods and solar-like oscillation frequencies in TESS data. The availability of multiple sectors of data for most targets, improved stability, and the release of new
    García, Rafael A. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024tsc3.confE..32G
    Citations
    0