Astrofísicas: Métodos

  • Publicación
    No swan song for Sun-as-a-star helioseismology: Performances of the Solar-SONG prototype for individual mode characterisation
    The GOLF instrument on board SoHO has been in operation for almost 25 years, but the ageing of the instrument has now strongly affected its performance...
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    No unique solution to the seismological problem of standing kink magnetohydrodynamic waves
    The aim of this paper is to point out that the classic seismological problem using observations and theoretical expressions for the periods and damping times of...
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    Noise properties of the CoRoT data. A planet-finding perspective
    In this short paper, we study the photometric precision of stellar light curves obtained by the CoRoT satellite in its planet-finding channel, with a particular...
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    Noise reduction in helioseismic power spectra by non-orthogonal wavelets
    We present a method to reduce noise in helioseismic power spectra using a non-orthogonal wavelet transform based on quadratic spline functions. The quality of...
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    Non-Gaussianity in the Very Small Array cosmic microwave background maps with smooth goodness-of-fit tests
    We have used the Rayner and Best smooth tests of goodness-of-fit to study the Gaussianity of the Very Small Array (VSA) data. These tests are designed to be...
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    Non-Gaussianity of optical emission lines in SDSS star-forming galaxies and its implications on galactic outflows
    The shape of emission lines in the optical spectra of star-forming galaxies reveals the kinematics of the diffuse gaseous component. We analyse the shape of...
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    Non-LTE Inversion of Stokes Profiles Induced by the Zeeman Effect
    This paper presents a new diagnostic tool for the inference of the thermal, dynamic, and magnetic properties of the solar chromosphere. It consists of a non-LTE...
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    Nonequilibrium ionization and ambipolar diffusion in solar magnetic flux emergence processes
    Context. Magnetic flux emergence from the solar interior has been shown to be a key mechanism for unleashing a wide variety of phenomena. However, there are...
  • Publicación
    Nonsequential neural network for simultaneous, consistent classification, and photometric redshifts of OTELO galaxies
    Context. Computational techniques are essential for mining large databases produced in modern surveys with value-added products. Aims: This paper presents a...