The formation and migration history of a planet is expected to be imprinted in its atmosphere, in particular its carbon-to-oxygen (C/O) ratio and metallicity. The BOWIE-ALIGN (Bristol, Oxford, Warwick, Imperial, Exeter – A spectral Light Investigation into gas Giant origiNs) programme is performing a comparative study of JWST spectra of four

Context. Rapidly rotating classical OBe stars have been proposed as the products of binary interactions, and the fraction of Be stars with compact companions implies that at least some are. However, to constrain the interaction physics spinning up the OBe stars, a large sample of homogeneously analyzed OBe stars with well-determined binary

We report the analysis of a planetary microlensing event AT2021uey. The event was observed outside the Galactic bulge and alerted both space-(Gaia) and ground-based (ZTF and ASAS-SN) surveys. From the observed data, we find that the lens system is located at a distance of ∼1 kpc and comprises an M-dwarf host star of about half a solar mass, orbited

The observation and interpretation of the universe in general have played a major role in cultures from different times and epochs. Studying this role is the main goal of a discipline called "cultural astronomy" or "astronomy in culture". With a tradition of more than three decades, it is an interdiscipline halfway between astronomy and social

Planetary nebulAE(PNe) arising from common envelope (CE) interaction represent a kind of embarrassing binary. Asymptotic Giant Branch (AGB) stars in close-binary systems undergoing CE are believed to abruptly eject their remaining envelope, giving rise to the PNe we observe around some of them. Whereas we are confident that angular momentum

We analysed the evolution of the spatial distribution and stratification of the physical parameters of the atmosphere of an X-class flare in the photosphere and chromosphere. We analysed the full Stokes vector of the Fe I 617.3 nm and Ca II 854.2 nm transitions recorded by the Interferometric Bidimensional Spectropolarimeter instrument on the 22