Planets with radii between that of the Earth and Neptune (hereafter referred to as `sub-Neptunes') are found in close-in orbits around more than half of all Sun...
-
PublicationA resonant sextuplet of sub-Neptunes transiting the bright star HD 110067
-
PublicationA rotating white dwarf shows different compositions on its opposite faces
White dwarfs, the extremely dense remnants left behind by most stars after their death, are characterized by a mass comparable to that of the Sun compressed...
-
PublicationA shared accretion instability for black holes and neutron stars
Accretion disks around compact objects are expected to enter an unstable phase at high luminosity 1. One instability may occur when the radiation pressure...
-
PublicationA single population of red globular clusters around the massive compact galaxy NGC 1277
Massive galaxies are thought to form in two phases: an initial collapse of gas and giant burst of central star formation, followed by the later accretion of...
-
PublicationA spectrograph for exoplanet observations calibrated at the centimetre-per-second level
The best spectrographs are limited in stability by their calibration light source. Laser frequency combs are the ideal calibrators for astronomical...
-
PublicationA stellar stream remnant of a globular cluster below the metallicity floor
Stellar ejecta gradually enrich the gas out of which subsequent stars form, making the least chemically enriched stellar systems direct fossils of structures...
-
PublicationA substantial amount of hidden magnetic energy in the quiet Sun
Deciphering and understanding the small-scale magnetic activity of the quiet solar photosphere should help to solve many of the key problems of solar and...
-
PublicationA super-massive Neptune-sized planet
Neptune-sized planets exhibit a wide range of compositions and densities, depending on factors related to their formation and evolution history, such as the...
-
PublicationA temperate Earth-sized planet with tidal heating transiting an M6 star
Temperate Earth-sized exoplanets around late-M dwarfs offer a rare opportunity to explore under which conditions planets can develop hospitable climate...