Automatic log spectrum restoration of atmospheric seeing

Bibcode
1987A&A...174..344N
Navarro, R.; Gomez, R.; Santamaria, J.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 174, no. 1-2, March 1987, p. 344-351.

Fecha de publicación:
3
1987
Número de autores
3
Número de autores del IAC
2
Número de citas
3
Número de citas referidas
3
Descripción
This paper presents an automatic method for (1) digital estimation of the width of the atmospherical seeing in astronomical images of extended objects and (2) image restoration by using the constrained Jansson-Van Cittert deconvolution algorithm. The estimation of the seeing is achieved by computing the radial profile of the averaged log spectrum of the image. The result of this estimation is then applied to compute the Point Spread Function (PSF) used in the deconvolution process. The method is applied to a photographical image of a sunspot. The quality of the restoration assesses the power and usefulness of the method.
Tipo
Con árbitro
Manchas solares

Te puede interesar

  • Con árbitro
    An ultra-short-period super-Earth with an extremely high density and an outer companion
    We present the discovery and characterization of a new multi-planetary system around the Sun-like star K2-360 (EPIC 201595106). K2-360 was first identified in K2 photometry as the host of an ultra-short-period (USP) planet candidate with a period of 0.88 d. We obtained follow-up transit photometry, confirming the star as the host of the signal
    Livingston, John H. et al.

    Fecha de publicación:

    11
    2024
    Bibcode
    2024NatSR..1427219L
    Número de citas
    0
  • Con árbitro
    Constraining the overcontact phase in massive binary evolution: III. Period stability of known B+B and O+B overcontact systems
    Context. Binary systems play a crucial role in massive star evolution. Systems composed of B-type and O-type stars are of particular interest due to their potential to lead to very energetic phenomena or the merging of exotic compact objects. Aims. We aim to determine the orbital period variations of a sample of B+B and O+B massive overcontact
    Vrancken, Jasmine et al.

    Fecha de publicación:

    11
    2024
    Bibcode
    2024A&A...691A.150V
    Número de citas
    0
  • Con árbitro
    High-resolution observations of recurrent jets from an arch filament system
    Context. Solar jets are collimated plasma ejections along magnetic field lines observed in hot (extreme-ultraviolet (EUV) jets) and cool (chromospheric surges) temperature diagnostics. Their trigger mechanisms and the relationship between hot and cool jets are still not completely understood. Aims. We aim to investigate the generation of a sequence
    Joshi, Reetika et al.

    Fecha de publicación:

    11
    2024
    Bibcode
    2024A&A...691A.198J
    Número de citas
    0