How efficiently can a galaxy turn gas into stars? Most galaxies do so at a very typical rate, but some convert gas incredibly fast in a huge starburst – but how efficient can they get?
White dwarfs in a binary often merge into a variety of interesting phenomena. However, nobody has sought to understand the role that magnetic fields play during the merger. The authors simulate the merging of two white dwarfs with magnetic fields to see what happens.
The evolution of a galaxy is strongly dependent upon the environment the galaxy lives in. Galaxies moving through galaxy groups and galaxy clusters can get stripped of their gas that would otherwise be used to form stars. Today’s astrobite discusses simulations of the stripping and removal of the hot, gaseous coronae that surround galaxies.
The exoplanet hunt is on. The stakes are high. What will our next-generation telescopes find?
Very low-mass M-dwarfs are a missing link in our theory of stellar interiors. Stars this small probably have fully convective interiors, but we don’t have a complete understanding of how that affects global properties like radius or temperature. It’s important to get right, if for no other reason because lots of exoplanets orbit M-dwarfs.
The authors of today’s paper show that the locations of the protoplanetary gaps in HL Tau are to be expected from the condensation points of common ices in the disk.