Astrophysical: Techniques

  • Publication
    The Sloan Digital Sky Survey extended point spread functions
    A robust and extended characterization of the point spread function (PSF) is crucial to extract the photometric information produced by deep imaging surveys...
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    The solar Ba{II} 4554 Å line as a Doppler diagnostic: NLTE analysis in 3D hydrodynamical model
    Aims: The aim of this paper is to analyse the validity of the Dopplergram and λ-meter techniques for the Doppler diagnostics of solar photospheric velocities...
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    The solar gravitational redshift from HARPS-LFC Moon spectra⋆. A test of the general theory of relativity
    Context. The general theory of relativity predicts the redshift of spectral lines in the solar photosphere as a consequence of the gravitational potential of...
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    The spatial distribution of galaxies within the cosmic microwave background cold spot in the Corona Borealis supercluster
    We study the spatial distribution and colours of galaxies within the region covered by the cold spot in the cosmic microwave background recently detected by the...
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    The spatially resolved broad line region of IRAS 09149-6206
    We present new near-infrared VLTI/GRAVITY interferometric spectra that spatially resolve the broad Brγ emission line in the nucleus of the active galaxy IRAS...
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    The spectral energy distribution of the central parsecs of the nearest AGN
    Spectral energy distributions (SEDs) of the central few tens of parsec region of some of the nearest, most well-studied, active galactic nuclei (AGN) are...
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    The Spectral Evolution of the First Galaxies. III. Simulated James Webb Space Telescope Spectra of Reionization-epoch Galaxies with Lyman-continuum Leakage
    Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman-continuum escape fractions (f esc) at...
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    The spectral type of CHS 7797 - an intriguing very low mass periodic variable in the Orion Nebula Cluster
    Aims: We present the spectroscopic characterization of the unusual high-amplitude very low mass pre-main-sequence periodic variable CHS 7797. Methods: This...
  • Publication
    The spectrum of (136199) Eris between 350 and 2350 nm: results with X-Shooter
    Context. X-Shooter is the first second-generation instrument for the ESO-Very Large Telescope. It is a spectrograph covering the entire 300-2480 nm spectral...