Publications

This section contains the publications database that collects IAC articles published in scientific journals. Please, click on the arrow to see full search filter and sort options: author, journal, year, etc..

It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/

  • Non-refereed
    Lithium abundances in samples of dwarf stars of population II and very old population I
    The CCD camera and Intermediate Dispersion Spectrograph of the 2.5 m Issaac Newton Telescope are used to obtain high quality spectra of the 6708-A Li-7 resonance doublet in 22 dwarfs with metallicities not greater than -0.7. A mean constant value of Log N(Li) = 2.07 (+ or - 0.1) is found for highly metal deficient dwarfs (Fe/H abundance ratios of
    Beckman, J. et al.

    Advertised on:

    0
    1986
    Bibcode
    1986ana..work...29B
    Citations
    6
  • Non-refereed
    Improvement of the Hubble diagram for QSO's leading towards g(O)
    Using the predictions of the Lynden Bell/Hills model of the energy source of QSO's in which discrete packets of matter (e.g., stars) are converted into radiation near a massive black hole, it is shown how the variability observations of QSO's over long periods may be used to upgrade the Hubble diagram for these objects. In a class of objects of low
    Beckman, J. E. et al.

    Advertised on:

    0
    1986
    Bibcode
    1986ASSL..121..471B
    Citations
    0
  • Non-refereed
    Hydrogen deficient planetary nebulae - Preliminary results
    New spectra of A78 and A58 at different positions in the nebulae are presented. An abundance gradient is found in A78, extending quite close to the center. Similarly, the nebulous knot near the center of A58 has considerably higher heavy element abundances than the outer regions of this nebula. The ionization state is considerably lower in A58 than
    Pottasch, S. R. et al.

    Advertised on:

    0
    1986
    Bibcode
    1986ASSL..128..359P
    Citations
    13