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/

  • Pushing the ground-based limit: 14-μmag photometric precision with the definitive Whole Earth Telescope asteroseismic data set for the rapidly oscillating Ap star HR1217
    HR1217 is one of the best-studied rapidly oscillating Ap (roAp) stars, with a frequency spectrum of alternating even- and odd-l modes that are distorted by the presence of a strong, global magnetic field. Several recent theoretical studies have found that within the observable atmospheres of roAp stars the pulsation modes are magneto-acoustic with
    Kurtz, D. W. et al.

    Advertised on:

    4
    2005
    Citations
    65
  • Physical Properties of the Solar Magnetic Photosphere under the MISMA Hypothesis. III. Sunspot at Disk Center
    Small-scale fluctuations of magnetic field and velocity may be responsible for the Stokes asymmetries observed in all photospheric magnetic structures (the microstructured magnetic atmosphere [MISMA] hypothesis). We support the hypothesis by showing that atmospheres with optically thin microstructure reproduce the polarization of Fe I λλ6301.5 and
    Sánchez Almeida, J.

    Advertised on:

    4
    2005
    Citations
    43
  • Photometric properties and origin of bulges in SB0 galaxies
    We have derived the photometric parameters for the structural components of a sample of fourteen SB0 galaxies by applying a parametric photometric decomposition to their observed I-band surface brightness distribution. We find that SB0 bulges are similar to bulges of the early-type unbarred spirals, i.e. they have nearly exponential surface
    Aguerri, J. A. L. et al.

    Advertised on:

    4
    2005
    Citations
    71
  • Photometric and Spectroscopic Study of the Shakhbazian Compact Galaxy Groups ShCG74 ShCG188, ShCG251, and ShCG348
    We continue the presentation of the results of detailed spectroscopic and photometric study of Shakhbazian compact galaxy groups. They belong to the interesting class of compact groups. Because of their large number (the catalogue contains 377 entries) we are able to study the groups in different stages of evolution. Here we give the results of a
    Tovmassian, H. M. et al.

    Advertised on:

    4
    2005
    Citations
    9
  • On the α-Element Abundance Gradients in the Disk of the Sculptor Spiral Galaxy NGC 300
    We have carried out a detailed spectral analysis of six early B-type supergiants in the Sculptor Group spiral galaxy NGC 300. To this end, we used state-of-the-art unified blanketed non-local thermodynamic equilibrium model atmospheres (computed with the code FASTWIND), aimed at the determination of the stellar parameters and of detailed surface
    Urbaneja, M. A. et al.

    Advertised on:

    4
    2005
    Citations
    78
  • On the Anomalous Red Giant Branch of the Globular Cluster ω Centauri
    We present three different optical and near-infrared (NIR) data sets for evolved stars in the Galactic globular cluster ω Centauri. The comparison between observations and homogeneous sets of stellar isochrones and zero-age horizontal branches provides two reasonable fits. Both of them suggest that the so-called anomalous branch has a metal
    Freyhammer, L. M. et al.

    Advertised on:

    4
    2005
    Citations
    14