Publicaciones

Esta sección ofrece el acceso a la base de datos de Publicaciones que recopila los artículos del IAC publicados en revistas científicas. Por favor, pulsa la flecha del menú para ver todas las opciones de búsqueda y de ordenación de resultados; autor, revista, año, etc..

Además ofrece acceso al  repositorio de preprints del IAC: https://research.iac.es/preprints/l

  • On the origin of reverse polarity patches found by Hinode in sunspot penumbrae

    Context: The topology of penumbral magnetic fields is poorly known. The satellite Hinode has recently revealed penumbral structures of a magnetic polarity that is opposite to the main sunspot polarity. They may be direct confirmation that magnetic field lines and mass flows return to the solar interior throughout the penumbra, a configuration

    Sánchez Almeida, J. et al.

    Fecha de publicación:

    12
    2009
    Número de citas
    12
  • On the origin of the compact H ii regions around massive stellar clusters

    The existence of compact H ii regions around massive stellar clusters with ages exceeding several Myr challenges our understanding of the physical processes occurring inside such clusters, and their impact on the interstellar medium of the host galaxy. Here, we summarize our recent results dealing with the hydrodynamics of matter ejected by massive

    Silich, Sergiy et al.

    Fecha de publicación:

    12
    2009
    Número de citas
    0
  • On the period ratio P1/2P2 in the oscillations of coronal loops

    Aims.With strong evidence of fast and slow magnetoacoustic modes arising in the solar atmosphere there is scope for improved determinations of coronal parameters through coronal seismology. Of particular interest is the ratio P1/2P2 between the period P1 of the fundamental mode and the period P2 of its first harmonic; in an homogeneous medium this

    McEwan, M. P. et al.

    Fecha de publicación:

    12
    2006
    Número de citas
    90
  • On the physical origin of the second solar spectrum of the Sc II line at 4247 Å

    Context: The peculiar three-peak structure of the linear polarization profile shown in the second solar spectrum by the Ba ii line at 4554 Å has been interpreted as the result of the different contributions coming from the barium isotopes with and without hyperfine structure. In the same spectrum, a triple peak polarization signal is also observed

    Belluzzi, L.

    Fecha de publicación:

    12
    2009
    Número de citas
    3
  • On the Primordial Helium Abundance and the Δ Y/Δ O Ratio

    We present a review on the determination of the primordial helium abundance, Y_p, based on the study of hydrogen and helium recombination lines in extragalactic H II regions. We also discuss the observational determinations of the increase of helium to the increase of oxygen by mass Δ Y/Δ O , and compare them with predictions based on models of

    Peimbert, M. et al.

    Fecha de publicación:

    12
    2007
    Número de citas
    40
  • On the relation of the Duvall phase function to the upper layers on the convection zone

    A method to obtain the Duvall phase function from the structure of a stellar model is presented. This can be a good tool for understanding the dependence of p-mode frequencies on the structure of the upper layers of the convection zone. A linear relation between phase function differences of two models and their equilibrium structure differences is

    Christensen-Dalsgaard, J. et al.

    Fecha de publicación:

    12
    1988
    Número de citas
    8