Free Access to the whole issue

Astronomy & Astrophysics

Volume 644 (December 2020)

Export the citation of the selected articles Export
Select all

Letters to the Editor

Astrophysical processes

Cosmology (including clusters of galaxies)

Open Access

Exploiting NIKA2/XMM-Newton imaging synergy for intermediate-mass high-z galaxy clusters within the NIKA2 SZ large program - Observations of ACT-CL J0215.4+0030 at z ∼ 0.9 A93


Extragalactic astronomy

Galactic structure, stellar clusters and populations

Interstellar and circumstellar matter

Stellar structure and evolution

Free Access

ATOMIUM: A high-resolution view on the highly asymmetric wind of the AGB star π1Gruis - I. First detection of a new companion and its effect on the inner wind A61


Stellar atmospheres

The Sun and the Heliosphere

Planets and planetary systems

Celestial mechanics and astrometry

Atomic, molecular, and nuclear data

Open Access

Reinvestigation of the rotation-tunneling spectrum of the CH2OH radical - Accurate frequency determination of transitions of astrophysical interest up to 330 GHz A123


Astronomical instrumentation

Catalogs and data

Numerical methods and codes