Astronomy & Astrophysics

Volume 621 (January 2019)

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Gaia Data Release 2

Letters to the Editor

Astrophysical processes

Micro-arcsecond structure of Sagittarius A revealed by high-sensitivity 86 GHz VLBI observations A119

Published online: 18 January 2019

Cosmology (including clusters of galaxies)

Extragalactic astronomy

The MUSE-Wide Survey: A determination of the Lyman α emitter luminosity function at 3 < z < 6 A107

Published online: 17 January 2019

Galactic structure, stellar clusters and populations

Interstellar and circumstellar matter

Stellar structure and evolution

Stellar atmospheres

The Sun

Planets and planetary systems

Open Access

Extrasolar planets and brown dwarfs around AF-type stars - X. The SOPHIE sample: combining the SOPHIE and HARPS surveys to compute the close giant planet mass-period distribution around AF-type stars A87

Published online: 11 January 2019

Atomic, molecular, and nuclear data

Astronomical instrumentation

Catalogs and data

Numerical methods and codes