Astrophysical: Methods

  • Publication
    Comparison of Two Fitting Methods for Ring Diagram Analysis of Very High L Solar Oscillations
    A new method of fitting tridimensional power spectra of solar oscillations is described and compared with a previous one whose use has been more common. The new...
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    Compositional characterization of V-type candidate asteroids identified using the MOVIS catalogue
    The main objective of this work is to compositionally analyse the visible to near-infrared spectra of a total of six V-type candidates identified using the...
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    Compositional study of asteroids in the Erigone collisional family using visible spectroscopy at the 10.4 m GTC
    Two primitive near-Earth asteroids, (101955) Bennu and (162173) Ryugu, will be visited by a spacecraft with the aim of returning samples back to Earth. Since...
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    Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity
    We present analytic formulae that approximate the evolution of stars for a wide range of mass M and metallicity Z. Stellar luminosity, radius and core mass are...
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    Compressed sensing for next generation instruments
    This document discusses the possibility of using compressed sensing techniques for measuring 2D spectro-polarimetric information using only one etalon and a...
  • Publication
    Compressive sensing for spectroscopy and polarimetry
    We demonstrate, through numerical simulations with real data, the feasibility of using compressive sensing techniques for the acquisition of spectro...
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    CONCERTO at APEX On-sky performance in continuum
    Context. CarbON CII line in post-rEionisation and ReionisaTiOn epoch (CONCERTO) instrument is a low-resolution mapping spectrometer based on lumped element...
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    Confidence levels of evolutionary synthesis models. II. On sampling and Poissonian fluctuations
    In terms of statistical fluctuations, stellar population synthesis models are only asymptotically correct in the limit of a large number of stars, where...
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    Confirmation of a Sub-Saturn-size Transiting Exoplanet Orbiting a G Dwarf: TOI-1194 b and a Very Low Mass Companion Star: TOI-1251 B from TESS
    We report the confirmation of a sub-Saturn-size exoplanet, TOI-1194 b, with a mass of about ${0.456}_{-0.051}^{+0.055}$ M J, and a very low mass companion star...