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..

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  • On an ambiguity in the concept of partial and total derivatives in classical analysis
    Ambiguity is shown in the context of the differential calculus of several variables and with the help of the language of category theory, a way to solve it in its most general form is offered. It is also shown that this new definition is related to other well-known definitions in the literature.
    Chubykalo, Andrew E. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    0
  • Infrared spectroscopy of V616 Monocerotis (=A0620-00): the accretion disc contamination
    We have obtained for the first time K-band infrared spectra of the soft X-ray transient V616 Mon (=A0620-00). We determine the 2-sigma upper limit to the fraction of light arising from the accretion disc to be 27 percent. The effect this has on the binary inclination, determined from modelling the infrared ellipsoidal variations is to increase it
    Shahbaz, T. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    25
  • Infrared spectroscopy of low-mass X-ray binaries - II
    Using CGS4 on UKIRT, we have obtained 2.00-2.45 mu m infrared spectra of a number of low-mass X-ray binaries including Sco X-1, Sco X-2 and GX1 3+1. Sco X-1 shows emission lines only, supporting our previous conclusion that the spectral type of the evolved secondary must be earlier than G5. Emission lines are also seen in the spectrum of Sco X-2
    Bandyopadhyay, R. M. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    97
  • Infrared and optical microvariability observations of TeV blazars
    Microvariability observations of two TeV emitting blazars have been made from the Canary Islands International Observatories since 1990. We present a small sample of typical results from the study. We find that, in contrast to the long-term light curve, Mark 501 is more active than Mark 421, suggesting that these, superficially similar objects, are
    Kidger, Mark R. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    2
  • Improving the signal-to-noise ratio in solar oscillation spectra
    We describe a data analysis technique for helioseismology that provides a reduction in the contamination of the solar oscillation spectrum from incoherent noise. We show that the technique allows: (i) a significant improvement in the signal-to-noise ratio for the modes in the oscillation power spectrum, and (ii) the solar velocity background
    García, R. A. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    20
  • CCD photometry and astrometry for visual double and multiple stars of the HIPPARCOS catalogue. I. Presentation of the large scale project
    A description is given of the activities of an international working group created with the aim of obtaining both photometric and astrometric observations of visual double and multiple stars with angular separations in the range of one to fifteen arcseconds, that formed part of the HIPPARCOS Input Catalogue. The scientific aims and realisations of
    Oblak, E. et al.

    Fecha de publicación:

    6
    1999
    Número de citas
    7