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/

  • Spectroscopic observations of AB supergiants in M 33.
    We have observed 10 luminous blue stars in M 33 at intermediate dispersion and have determined spectral types and luminosity classes from the blue and red spectrograms by comparing with galactic and SMC stars. Halpha_ profiles have proved to be very useful in disentangling luminosity and metallicity effects, and constitute a valuable diagnostic
    Monteverde, M. I. et al.

    Advertised on:

    8
    1996
    Citations
    28
  • Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
    To understand the formation and evolution of solar-type stars in the solar neighborhood, we need to measure their stellar parameters to high accuracy. We present a catalogue of accurate stellar parameters for 451 stars that represent the HARPS Guaranteed Time Observations (GTO) “high precision” sample. Spectroscopic stellar parameters were measured
    Sousa, S. G. et al.

    Advertised on:

    8
    2008
    Citations
    503
  • Spectroscopic Parameters for a Sample of Bright Solar-type Stars
    We present a new automatic code (ARES) for the determination of equivalent widths of absorption lines present in stellar spectra. We also describe its use for the determination of fundamental spectroscopic stellar parameters. The code is written in C++ based on the standard method of determining EWs, and is available for the community. We test the
    Sousa, Sergio G. et al.

    Advertised on:

    8
    2007
    Citations
    0
  • Spectroscopic Rotational Velocities of Brown Dwarfs
    We have obtained projected rotation velocities (vrotsini) of a sample of 19 ultracool dwarfs with spectral types in the interval M6.5-T8 using high-resolution, near-infrared spectra obtained with NIRSPEC and the Keck II telescope. Among our targets there are two young brown dwarfs, two likely field stars, and 15 likely brown dwarfs (30-72 MJup) in
    Zapatero Osorio, M. R. et al.

    Advertised on:

    8
    2006
    Citations
    105
  • Spectroscopic versus evolutionary masses
    We describe the present status of the mass discrepancy in the Upper HR Diagram.
    Herrero, A.

    Advertised on:

    8
    2007
    Citations
    4
  • Spectroscopy from Photometry Using Sparsity: The SDSS Case Study
    We explore whether medium-resolution stellar spectra can be reconstructed from photometric observations, taking advantage of the highly compressible nature of the spectra. We formulate the spectral reconstruction as a least-squares problem with a sparsity constraint. In our test case using data from the Sloan Digital Sky Survey, only three
    Asensio-Ramos, A. et al.

    Advertised on:

    8
    2010
    Citations
    2