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/

  • Use of high resolution IUE spectra of MG 2 in cool stars to probe the local interstellar medium
    It is shown that, given suitable radial velocity values for the stars and the local interstellar medium (LISM) interstellar absorption can be distinguished from chromospheric self absorption within the MgII emissions from late type stars. Beta Hyi (G2IV) offers a clear example. Zeta Tuc (G2V) and delta Pav (G8V) which are very close to beta Hyi
    Molaro, P. et al.

    Advertised on:

    7
    1984
    Citations
    3
  • An upper limit to the Beryllium abundance in the population 2 star HD 140283 from a high resoluion IUE spectrum
    An IUE archive spectrum of HD 140283 has been analyzed in the region of the 3131 Å 9Be II resonance doublet. Close comparison of the observed and synthetic spectra yields no measurable Be, and a conservative upper limit of 3×10-12 for 9Be, which is one fourth solar, can be set. With this star, and with a previous population II star HD 76932
    Molaro, P. et al.

    Advertised on:

    7
    1984
    Citations
    8
  • Velocity signal produced by the passage of active regions compared with observations
    A calibrated numerical simulation of seasons for which there are observations of the passage of active regions across the visible disk of the sun, generating a velocity signal that can be compared with the Claverie et al. (1982) observations, has yielded values of this signal for a complete solar cycle. The results obtained indicate that the
    Herrero, A. et al.

    Advertised on:

    6
    1984
    Citations
    7
  • Solar oscillations and the effect of a comet impact
    If such external influences as the impact of a comet on the solar surface could destroy or mask the coherence of observed solar oscillations, the scope and effectiveness of extended study in this field would be considerably limited. It is therefore important to investigate any possible effects due to the recently reported comet impacts on the sun
    Isaak, G. R. et al.

    Advertised on:

    6
    1984
    Citations
    0
  • Solar G modes
    A statistical analysis of the frequency spectrum of 85 days of data obtained from integral solar velocity signals, has shown that significant signals exist in the frequency range 25 - 150 μHz. The signal structure is shown to have characteristics of constant period spacings indicative of the existence of g modes in the solar oscillation spectrum
    Isaak, G. R. et al.

    Advertised on:

    6
    1984
    Citations
    18