Astrofísicas: Métodos

  • Publicación
    Dwarfs after mergers? The case of NGC 520, NGC 772, Arp 141, NGC 3226/7, NGC 3656 and Arp 299
    We present results from a survey of dwarf galaxy candidates in the vicinity of strongly interacting galaxies. The goal of the survey was a test of the...
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    Dynamical masses and non-homology of massive elliptical galaxies grown by dry mergers
    We study whether dry merger-driven size growth of massive elliptical galaxies depends on their initial structural concentration, and analyse the validity of the...
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    Dynamics of 2023 FW<SUB>14</SUB>, the second L<SUB>4</SUB> Mars trojan, and a physical characterization using the 10.4 m Gran Telescopio Canarias
    Context. Known Mars trojans could be primordial small bodies that have remained in their present-day orbits for the age of the Solar System. Their orbital...
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    Dynamics of Multi-cored Magnetic Structures in the Quiet Sun
    We report on the dynamical interaction of quiet-Sun magnetic fields and granular convection in the solar photosphere as seen by Sunrise. We use high spatial...
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    Dynamics of small-scale magnetic fields on the Sun: observations and numerical simulations
    Context: Small-scale magnetic fields play an important role in the structure and the dynamics of the solar atmosphere. Aims: This study aims at revealing the...
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    Early detection of the optical counterpart to GRB 980329
    We report optical observations of the GRB 980329 error box which represent the second earliest detection of the GRB 980329 optical transient. We determine R =...
  • Publicación
    Early Evolution of Disrupted Asteroid P/2016 G1 (PANSTARRS)
    We present deep imaging observations of activated asteroid P/2016 G1 (PANSTARRS) using the 10.4 m Gran Telescopio Canarias (GTC) from 2016 late April to early...
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    Earth's Albedo 1998-2017 as Measured From Earthshine
    The reflectance of the Earth is a fundamental climate parameter that we measured from Big Bear Solar Observatory between 1998 and 2017 by observing the...
  • Publicación
    Effect of telescope vibrations upon high angular resolution imaging
    We have analysed short-exposure high-resolution images obtained on the William Herschel Telescope (WHT), Big Telescope Azimuthal (BTA) and Canada-France-Hawaii...