Neptune-sized planets exhibit a wide range of compositions and densities, depending on factors related to their formation and evolution history, such as the...
A 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...
A temperate rocky super-Earth transiting a nearby cool star
M dwarf stars, which have masses less than 60 per cent that of the Sun, make up 75 per cent of the population of the stars in the Galaxy. The atmospheres of...
A transiting giant planet with a temperature between 250K and 430K
Of the over 400 known exoplanets, there are about 70 planets that transit their central star, a situation that permits the derivation of their basic parameters...
A wide star-black-hole binary system from radial-velocity measurements
All stellar-mass black holes have hitherto been identified by X-rays emitted from gas that is accreting onto the black hole from a companion star. These systems...
Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation
Pluto and Eris are icy dwarf planets with nearly identical sizes, comparable densities and similar surface compositions as revealed by spectroscopic studies...
An irradiated brown-dwarf companion to an accreting white dwarf
Interacting compact binary systems provide a natural laboratory in which to study irradiated substellar objects. As the mass-losing secondary (donor) in these...
An irradiated brown-dwarf companion to an accreting white dwarf
Interacting compact binary systems provide a natural laboratory in which to study irradiated substellar objects. As the mass-losing secondary (donor) in these...
An optical supernova associated with the X-ray flash XRF 060218
Long-duration γ-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities...