Powerful radio galaxies and radio-loud quasars at high redshifts are frequently associated with extended emission-line regions (EELRs). Here we investigate the...
A jet-related colour change in the inner coma of comet Hale-Bopp (1995 O1)?
Comet Hale-Bopp (1995 O1) has been intensely monitored with the 82cm IAC-80 Telescope at Teide Observatory, Tenerife, Spain. Multicolour photometry taken on...
A joint effort to discover and characterize two resonant mini-Neptunes around TOI-1803 with TESS, HARPS-N, and CHEOPS
Context. The discovery and characterization of mini-Neptunes hold a potentially crucial impact on planetary formation and evolution theories. Estimating their...
A joint XMM-NuSTAR observation of the galaxy cluster Abell 523: Constraints on inverse Compton emission
Aims: We present the results of a joint XMM-Newton and NuSTAR observation (200 ks) of the galaxy cluster Abell 523 at z = 0.104. The peculiar morphology of the...
A journey from the outskirts to the cores of groups. I. Color- and mass-segregation in 20K-zCOSMOS groups
Context. Studying theevolution of galaxies located within groups may have important implications for our understanding of the global evolution of the galaxy...
A JWST/DiSCo-TNOs portrait of the primordial Solar System through its trans-Neptunian objects
The detection of molecules on the coldest and outermost objects in our Solar System has long been limited by the terrestrial atmosphere and sensitivity of the...
A K-band central disc surface brightness correlation with scalelength for early-type disc galaxies, and the inclination correction
The K-band light profiles from two statistically complete, diameter-limited samples of disc galaxies have been simultaneously modelled with a seeing-convolved...
A Key Physical Mechanism for Understanding the Enigmatic Linear Polarization of the Solar Ba II and Na I D1 Lines
The linearly polarized spectrum of the solar limb radiation produced by scattering processes is of great diagnostic potential for exploring the magnetism of the...
A KMOS survey of the nuclear disk of the Milky Way. I. Survey design and metallicities
Context. In the central few degrees of the bulge of the Milky Way there is a flattened structure of gas, dust, and stars, known as the central molecular zone...