We report here on the discovery of supersonic Evershed downflows in the penumbra of a sunspot. These flows are shown to occur along spatially unresolved, very...
Collective pulsational velocity broadening due to gravity modes as a physical explanation for macroturbulence in hot massive stars
Aims. We aimed at finding a physical explanation for the occurrence of macroturbulence in the atmospheres of hot massive stars, a phenomenon found in...
Color study of asteroid families within the MOVIS catalog
The aim of this work is to study the compositional diversity of asteroid families based on their near-infrared colors, using the data within the MOVIS catalog...
Compact jets dominate the continuum emission in low-luminosity active galactic nuclei
Low-luminosity active galactic nuclei (LLAGN) are special among their kind due to the profound structural changes that the central engine experiences at low...
Comparing Submillimeter Polarized Emission with Near-infrared Polarization of Background Stars for the Vela C Molecular Cloud
We present a large-scale combination of near-infrared (near-IR) interstellar polarization data from background starlight with polarized emission data at...
Comparing the emission spectra of U and Th hollow cathode lamps and a new U line list
Context. Thorium hollow cathode lamps (HCLs) are used as frequency calibrators for many high resolution astronomical spectrographs, some of which aim for...
Comparison of theoretical and observed Ca II 8542 Stokes profiles in quiet regions at the centre of the solar disc
Context. Interpreting the Stokes profiles observed in quiet regions of the solar chromosphere is a challenging task. The Stokes Q and U profiles are dominated...
Complex AGN feedback in the Teacup galaxy. A powerful ionised galactic outflow, jet-ISM interaction, and evidence for AGN-triggered star formation in a giant bubble
Context. The z ∼ 0.1 type-2 QSO J1430+1339, known as the " Teacup", is a complex galaxy showing a loop of ionised gas ∼10 kpc in diameter, co-spatial radio...