Context. Realistic three-dimensional time-dependent simulations of stellar near-surface convection employ the opacity binning method for the efficient and...
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PublicationOpacity for realistic 3D MHD simulations of cool stellar atmospheres
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PublicationOpen cluster Dolidze 25: Stellar parameters and the metallicity in the Galactic anticentre
Context. The young open cluster Dolidze 25, in the direction of the Galactic anticentre, has been attributed a very low metallicity, with typical abundances...
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PublicationOpening PANDORA's box: APEX observations of CO in PNe
Context. Observations of molecular gas have played a key role in developing the current understanding of the late stages of stellar evolution. Aims: The survey...
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PublicationOptical analysis of the poor clusters Abell 610, Abell 725, and Abell 796, containing diffuse radio sources
Aims: We study the dynamical status of the poor, low X-ray luminous galaxy clusters Abell 610, Abell 725, and Abell 796 (at z = 0.1, 0.09, and 0.16...
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PublicationOptical and EUV observations of solar flare kernels
We present high-resolution spectral observations, covering the entire optical region (3800-9000 Å), of a solar flare observed during a multi-wavelength campaign...
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PublicationOptical and near-infrared follow-up observations of GRB980329
We imaged the field of GRB980329 in the optical and in the near-infrared starting 20 hours after the event, at the ESO NTT, at the NOT, at the APO and at the...
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PublicationOptical and near-infrared spectroscopy of the black hole transient 4U 1543-47 during its 2021 ultra-luminous state
We present simultaneous optical and near-infrared spectra obtained during the 2021 outburst of the black hole transient 4U 1543-47. The X-ray hardness-intensity...
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PublicationOptical and radio variability of the BL Lacertae object AO 0235+16: A possible 5-6 year periodicity
The BL Lacertae object AO 0235+16 is well known for its extreme optical and radio variability. New optical and radio data have been collected in the last four...
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PublicationOptical dropout galaxies lensed by the cluster A2667
Context. We investigate the nature and the physical properties of ten z, Y, and J-dropout galaxies selected in the field of the lensing cluster A2667. Aims...