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Astronomy & Astrophysics

Volume 643 (November 2020) (open volume)


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Letters to the Editor

Astrophysical processes

Cosmology (including clusters of galaxies)

Extragalactic astronomy

Inside-out formation of nuclear discs and the absence of old central spheroids in barred galaxies of the TIMER survey A65

Published online: 03 November 2020
DOI: https://doi.org/10.1051/0004-6361/202038450

Galactic structure, stellar clusters and populations

Interstellar and circumstellar matter

Stellar structure and evolution

Open Access

Investigating the magnetospheric accretion process in the young pre-transitional disk system DoAr 44 (V2062 Oph) - A multiwavelength interferometric, spectropolarimetric, and photometric observing campaign A99

Published online: 09 November 2020
DOI: https://doi.org/10.1051/0004-6361/202038892
Open Access

The Gaia-ESO survey: 3D NLTE abundances in the open cluster NGC 2420 suggest atomic diffusion and turbulent mixing are at the origin of chemical abundance variations A164

Published online: 18 November 2020
DOI: https://doi.org/10.1051/0004-6361/202038833

Orbital variability of the optical linear polarization of the γ-ray binary LS I +61° 303 and new constraints on the orbital parameters A170

Published online: 20 November 2020
DOI: https://doi.org/10.1051/0004-6361/202038745

Stellar atmospheres

The Sun and the Heliosphere

Planets and planetary systems

VIBES: Visual Binary Exoplanet survey with SPHERE - Upper limits on wide S-planet and S-BD frequencies, triple system discovery, and astrometric confirmation of 20 stellar binaries and three triple systems A98

Published online: 09 November 2020
DOI: https://doi.org/10.1051/0004-6361/202039173

Celestial mechanics and astrometry

Atomic, molecular, and nuclear data

Astronomical instrumentation

Catalogs and data

Free Access

The Gaia-ESO Survey: Calibrating the lithium–age relation with open clusters and associations - I. Cluster age range and initial membership selections A71

Published online: 05 November 2020
DOI: https://doi.org/10.1051/0004-6361/202037620

Numerical methods and codes