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/

  • Spectroscopy of 10 γ-Ray BL Lac Objects at High Redshift
    We present optical spectra with high signal-to-noise ratio of 10 BL Lac objects detected at GeV energies by the Fermi satellite (3FGL catalog), which previous observations suggested are at relatively high redshift. The new observations, obtained at the 10 m Gran Telescopio Canarias, allowed us to find the redshift for J0814.5+2943 (z = 0.703), and
    Paiano, S. et al.

    Advertised on:

    8
    2017
    Citations
    31
  • Spectroscopy of HD 168625 (IRAS 18184-1623)
    HD 168625 (B9-A0 Ia) was classified as a post-AGB star and also as a luminous blue variable. We have analysed the high resolution optical spectra of HD 168625 and derived the atmospheric parameters and the chemical composition. We obtained Teff = 15000K, log g = 2.5, xit = 6km/s and [M/H] = 0.0, and estimated the chemical composition. We find [C/H]
    García-Lario, P. et al.

    Advertised on:

    8
    2001
    Citations
    6
  • Spectroscopy of Post-AGB A-Supergiant HD 101584 (IRAS 11385-5517)
    In the high resolution optical spectra we identified forbidden lines of [OI] and [CI], which indicate the presence of low excitation nebula. There are many emission lines due forbidden and permitted lines of neutral and singly ionised metals. The Hα, FeII 6383Å, NaI D1, D2 lines and the CaII IR triplet lines show P-Cygni profiles indicating a mass
    Sivarani, T. et al.

    Advertised on:

    8
    2001
    Citations
    1
  • Spectroscopy of Post-AGB Candidate HD 331319 (IRAS 19475+3119)
    HD 331319 is a F3 Ib star with a detached cold circumstellar dust shell with far-IR colours similar to planetary nebulae. From an analysis of high resolution spectra using LTE stellar atmospheric models, we have derived the atmospheric parameters and the chemical composition of HD 331319. By matching the theoretical and the observed spectrum we
    Sivarani, T. et al.

    Advertised on:

    8
    2001
    Citations
    2
  • Spectroscopy of Post-AGB Candidate IRAS 10215-5916
    IRAS 10215-5916 was classified as a post-AGB star and also as a massive red supergiant. It was also found to be a spectroscopic binary. In our high resolution spectra we found molecular features from a cool star of Teff = 3750K. We also see the spectral signature of a relatively hotter star of Teff = 7250K. We found that both the components of the
    Sivarani, T. et al.

    Advertised on:

    8
    2001
    Citations
    1
  • SPIDER VIII - constraints on the stellar initial mass function of early-type galaxies from a variety of spectral features
    We perform a spectroscopic study to constrain the stellar initial mass function (IMF) by using a large sample of 24 781 early-type galaxies from the Sloan Digital Sky Survey-based Spheroids Panchromatic Investigation in Different Environmental Regions survey. Clear evidence is found of a trend between IMF and central velocity dispersion (σ0)
    La Barbera, F. et al.

    Advertised on:

    8
    2013
    Citations
    245