Journal: Astronomy and Astrophysics

  • Publication
    FOCUS: a deconvolution method based on algorithmic complexity
    A new method for improving the resolution of images is presented. It is based on Occam's razor principle implemented using algorithmic complexity arguments. The...
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    Follow-up observations of binary ultra-cool dwarfs
    Context: Astrometric observations of resolved binaries provide estimates of orbital periods and will eventually lead to measurement of dynamical masses. Only a...
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    Follow-up observations of extremely metal-poor stars identified from SDSS
    Context. The most metal-poor stars in the Milky Way witnessed the early phases of formation of the Galaxy, and have chemical compositions that are close to the...
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    Forbidden hugs in pandemic times. I. Luminous red nova AT 2019zhd, a new merger in M 31
    We present the follow-up campaign of the luminous red nova (LRN) AT 2019zhd, the third event of this class observed in M 31. The object was followed by several...
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    Forbidden hugs in pandemic times. II. The luminous red nova variety: AT 2020hat and AT 2020kog
    We present the results of our monitoring campaigns of the luminous red novae (LRNe) AT 2020hat in NGC 5068 and AT 2020kog in NGC 6106. The two objects were...
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    Forbidden hugs in pandemic times. IV. Panchromatic evolution of three luminous red novae
    We present photometric and spectroscopic data on three extragalactic luminous red novae (LRNe): AT 2018bwo, AT 2021afy, and AT 2021blu. AT 2018bwo was...
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    Force equation of the large-scale structure of the Universe.
    This article presents a statistical-mechanical treatment of a relationship (the force equation) between the gravitational potential for two particles and the...
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    Formation and evolution of dwarf early-type galaxies in the Virgo cluster. II. Kinematic scaling relations
    We place our sample of 18 Virgo dwarf early-type galaxies (dEs) on the (V - K)e-velocity dispersion, Faber-Jackson, and fundamental plane (FP) scaling relations...
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    Formation and morphology of anomalous solar circular polarization
    Context. The morphology of spectral line polarization is the most valuable observable to investigate the magnetic and dynamic solar atmosphere. However, in...