Established and Non-Established Properties of Umbral and Penumbral Fine Structures

Bibcode
1987rfsm.conf..140G
García de La Rosa, J. I.
Referencia bibliográfica

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.140

Fecha de publicación:
0
1987
Número de autores
1
Número de autores del IAC
0
Número de citas
25
Número de citas referidas
21
Descripción
Four main aspects of umbral and penumbral fine structures are considered: brightness and morphology, magnetic field, velocity and oscillations. The author discusses a model in which penetrative convection produces peripheric umbral dots and upward flowing matter which is channeled outwards, pushing the magnetic field aside. The possibility of a non-thermal origin for the central umbral dots cannot be excluded. This model is in agreement with the fine structure observations.
Tipo
Sin árbitro

Te puede interesar

  • Sin árbitro
    Study of basaltic asteroids through their phase curves
    Introduction Classified as type-V, the basaltic asteroids of the Main Belt (MB), for the most part, are connected to Vesta's dynamic family. However, since the discovery of the V-type asteroid (1459) Magnya in the outer MB, several new asteroids have been found in different regions, including V-types from inner regions not belonging to the Vesta
    Arcoverde, Plicida et al.

    Fecha de publicación:

    9
    2024
    Bibcode
    2024EPSC...17..999A
    Número de citas
    0
  • Sin árbitro
    New Robotic Telescope system progress towards critical design review
    The 4m class New Robotic Telescope (NRT) is an optical facility designed to revolutionize the rapid follow-up and classification of variable and transient objects. The project is at the stage where key systems are progressing through their detailed design phases, which presents a major engineering challenge for all project partners to manage design
    Copley, David et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024SPIE13094E..3WC
    Número de citas
    0
  • Sin árbitro
    Phase diversity application on the EST MCAO testbench
    Phase Diversity (PD) is a technique widely used to measure and compensate for Non-Common Path Aberrations (NCPA) in optical systems. Beyond its traditional applications, PD has found further uses in solar astrophysics, where it enhances image quality by processing multiple images to correct residual aberrations. In this work, we introduce a
    Rodriguez-Linares, Nicolas et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024SPIE13097E..5OR
    Número de citas
    0